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CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims priority of U.S. provisional patent application Nos. 61/636,129 and 61/760,384 filed respectively on Apr. 20, 2012 and on Feb. 4, 2013. 
     
    
     BACKGROUND 
       [0002]    (a) Field 
         [0003]    The subject matter disclosed generally relates to the field of building materials and to door and windows decorative elements. More particularly, the subject matter relates to decorative foldable frames, to decorative foldable frame assemblies, to decorative foldable members and to methods for installing and/or using the same. 
         [0004]    (b) Related Prior Art 
         [0005]    The assembly of door and window building materials is a challenging endeavour which is facilitated by specialized machinery and tools in industrial and manufacturing settings. However, such assembly remains difficult when performed in a household setting, especially by non-professional individuals. 
         [0006]    There is therefore still a need in the field of door building materials for decorative foldable frames, decorative foldable frame assemblies, decorative foldable door members and methods for installing and/or using the same. 
       SUMMARY 
       [0007]    According to an embodiment, there is provided a decorative foldable frame for interfacing with a surface defining an internal surface and a peripheral external surface, the decorative foldable frame comprising: an internal mounting element having an internal mounting surface for interfacing with the internal surface and an external surface, the internal mounting element defining a first end and a second end; at least two external mounting elements adjacent to each one of the first and second ends of the internal mounting element, each one of the at least two external mounting elements having an internal mounting surface for interfacing with the peripheral external surface and an external surface; and a foldable layer covering at least one of: the internal mounting surface and the external surface of the internal mounting element or the at least two external mounting elements; wherein the foldable layer is integrally formed for allowing the decorative foldable frame to fold and unfold to adopt any position between a non-installed position and an interfacing position. 
         [0008]    The internal mounting element may comprise a first internal mounting element and a second internal mounting element, each one of the first and second internal mounting elements defining a first end and a second end opposed to the first end, the first end of the first internal mounting element further comprises a mating connector releasably connected with a corresponding mating connector on the second end of the second internal mounting element. 
         [0009]    The internal mounting element may define a longitudinal edge and wherein at least one of the external mounting elements defines a corresponding edge for interfacing with the longitudinal edge of the internal mounting element when the decorative foldable frame adopts the interfacing position. 
         [0010]    The longitudinal edge may define a first longitudinal edge at the first end of the internal mounting element and a second longitudinal edge at the second end of internal mounting element and further wherein two external mounting elements define a first corresponding edge for interfacing with the first longitudinal edge of the internal mounting element and a second corresponding edge for interfacing with the second longitudinal edge of the internal mounting element when the decorative foldable frame adopts the interfacing position. 
         [0011]    The first longitudinal edge and the second longitudinal edge of the internal mounting element may comprise a 45° longitudinal edge. 
         [0012]    The first corresponding edge of a first one of the two external mounting elements and the second corresponding edge of a second one of the two external mounting elements may comprise a corresponding 45° longitudinal edge for interfacing with the first and second longitudinal edges of the internal mounting element when the decorative foldable frame adopts the fixedly interfacing position. 
         [0013]    The internal mounting element may interact with the at least two external mounting elements for creating a 90° angle. 
         [0014]    The internal mounting element and the at least two external mounting elements may comprise one of: a medium-density fiberboard material, a low-density fiberboard material, a high-density fiberboard material, a particle board, a wood material, a metallic material, a polymeric material and any combination thereof. 
         [0015]    The foldable layer may comprise a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material and any combination thereof. 
         [0016]    The foldable layer may cover the internal mounting surface of the internal mounting element and the at least two external mounting elements. 
         [0017]    The foldable layer may partially cover the internal mounting surface of the internal mounting element and the at least two external mounting elements. 
         [0018]    The foldable layer may cover the external surface of the internal mounting element and the at least two external mounting elements. 
         [0019]    The foldable layer may partially cover the external surface of the internal mounting element and the at least two external mounting elements. 
         [0020]    The foldable layer may further include at least one foldable projection portion outwardly extending from the foldable layer. 
         [0021]    According to another embodiment, there is provided a decorative foldable member comprising: an internal mounting element defining an internal interfacing surface, a first longitudinal end, a second longitudinal end and an external surface; two external mounting elements, each one of the two external mounting elements being adjacent to the first and second longitudinal ends respectively of the internal mounting element, each one of the two external mounting elements defining an external surface and an internal interfacing surface, an interfacing surface of one of the two external mounting elements for interfacing with the internal interfacing surface of the other one of the two external mounting element; and a foldable layer covering at least one of: the internal interfacing surface and the external surface of the internal mounting element or the two external mounting elements; wherein the foldable layer is integrally formed for allowing the decorative foldable member to fold and unfold to adopt any position between a non-interfacing position and an interfacing position. 
         [0022]    When adopting the interfacing position, the internal interfacing surfaces of the two external mounting elements may be interfacing for creating a mating connector at a distal end of the decorative foldable member to receive at least one corresponding mating connector of another member. 
         [0023]    The internal interfacing surface of the internal mounting element may comprise a first internal interfacing surface and a second internal interfacing surface adjacent to the first internal interfacing surface. 
         [0024]    The two external mounting elements may define a first corresponding edge on one of the two external mounting elements for totally interfacing with the first internal interfacing surface of the internal mounting element and a second corresponding edge on the other one of the two external mounting elements for interfacing with the second interfacing surface of the internal mounting element when the decorative foldable member adopts the interfacing position. 
         [0025]    The first internal interfacing surface and the second internal interfacing surface may each define a 45° longitudinal edge. 
         [0026]    The first and second internal interfacing surfaces of the internal mounting element may comprise a 45° longitudinal edge for interfacing with the first and second corresponding edges of the two external mounting elements. 
         [0027]    The internal mounting element may interact with the two external mounting elements for creating 90° angles. 
         [0028]    The foldable layer may cover or partially cover the internal interfacing surface of the internal mounting element and the two external mounting elements. 
         [0029]    The foldable layer may cover or partially cover the external surface of the internal mounting element and the two external mounting elements. 
         [0030]    The foldable layer may further include at least one foldable fin outwardly extending from the foldable layer. 
         [0031]    The mating connector may further comprise a compartment for receiving a liquid composition. 
         [0032]    According to another embodiment, the foldable frame assembly for interfacing with a surface along a wall opening periphery, the surface defining an internal surface and a peripheral external surface, the foldable frame assembly comprising: a first decorative foldable frame; a second decorative foldable frame, the second decorative foldable frame extending from the first decorative foldable frame; and a third decorative foldable frame, the third decorative foldable frame extending from the second decorative foldable frame. 
         [0033]    The foldable frame assembly may further comprise a fourth decorative foldable frame, the fourth decorative foldable frame perpendicularly extending from the third and the first decorative foldable frames. 
         [0034]    The internal mounting element and the at least two external mounting elements comprise one of: a medium-density fiberboard material, a low-density fiberboard material, a high-density fiberboard material, a particle board, a wood material, a metallic material, a polymeric material and any combination thereof. 
         [0035]    The foldable layer may comprise a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material and any combination thereof. 
         [0036]    The foldable layer may cover the internal mounting surface of the internal mounting element and the at least two external mounting elements. 
         [0037]    The foldable layer may partially cover the internal mounting surface of the internal mounting element and the at least two external mounting elements. 
         [0038]    The foldable layer may cover the external surface of the internal mounting element and the at least two external mounting elements. 
         [0039]    The foldable layer partially may cover the external surface of the internal mounting element and the at least two external mounting elements. 
         [0040]    Features and advantages of the subject matter hereof will become more apparent in light of the following detailed description of selected embodiments, as illustrated in the accompanying figures. As will be realized, the subject matter disclosed and claimed is capable of modifications in various respects, all without departing from the scope of the claims. Accordingly, the drawings and the description are to be regarded as illustrative in nature, and not as restrictive and the full scope of the subject matter is set forth in the claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0041]    Further features and advantages of the present disclosure will become apparent from the following detailed description, taken in combination with the appended drawings, in which: 
           [0042]      FIG. 1  are perspective and top views of a door opening defined by a wall in accordance with an embodiment; 
           [0043]      FIG. 2  is a side elevation view of a decorative foldable door frame in a non-installed position in accordance with another embodiment; 
           [0044]      FIG. 3  is a top plan view of an internal mounting element and an adjacent external mounting element of the decorative foldable door frame of  FIG. 2 ; 
           [0045]      FIG. 4  is a top plan view of an internal mounting element and an adjacent external mounting element of the decorative foldable door frame of  FIG. 2 ; 
           [0046]      FIG. 5  is a top plan view of the decorative foldable door frame of  FIG. 2  in an interfacing position around an opening defined by a wall; 
           [0047]      FIG. 6  is a perspective view of a decorative foldable door member in an interfacing position in accordance with another embodiment and a close-up fragmentary view of an end of the decorative foldable door member; 
           [0048]      FIG. 7  is a perspective exploded view of a decorative door showing the decorative foldable door member of  FIG. 6  in accordance with another embodiment; 
           [0049]      FIG. 8  is an elevation view of the decorative foldable door member of  FIG. 6  in a non-interfacing position; 
           [0050]      FIG. 9  is an elevation view of the decorative foldable door member of  FIG. 6  in an interfacing position; 
           [0051]      FIG. 10  is a perspective view of a foldable door frame assembly in its non-installed position in accordance with another embodiment; 
           [0052]      FIG. 11  is another perspective view of the foldable door frame assembly of  FIG. 9  in its non-installed position; 
           [0053]      FIG. 12  is a perspective view of the foldable door frame assembly of  FIG. 9  in its interfacing position; 
           [0054]      FIG. 13  is another perspective view of the foldable door frame assembly of  FIG. 9  in its non-installed position; 
           [0055]      FIG. 14A  is a perspective view of the foldable door frame assembly of  FIG. 9  in its non-installed position to be installed on a door opening; 
           [0056]      FIG. 14B  is a perspective view of the foldable door frame assembly of  FIG. 9  in a partially interfacing and extended position interfacing with the door opening; 
           [0057]      FIG. 14C  is a perspective view of the foldable frame assembly of  FIG. 9  in an interfacing and extended position interfacing with the door opening; 
           [0058]      FIG. 14D  is a perspective view of the foldable door frame assembly of  FIG. 9  in an interfacing position and unextended position interfacing with the door opening; 
           [0059]      FIG. 15A  is a side elevation view of a decorative foldable door frame in a non-installed position in accordance with another embodiment; 
           [0060]      FIG. 15B  is another side elevation view of the decorative foldable door frame of  FIG. 15A  in a non-installed position in accordance with another embodiment; 
           [0061]      FIG. 15C  is another side elevation view of the decorative foldable door frame of  FIG. 15A  in a non-installed position in accordance with another embodiment; 
           [0062]      FIG. 15D  is another side elevation view of the decorative foldable door frame of  FIG. 15A  in a non-installed position, where the mating connectors are releasably connected; and 
           [0063]      FIG. 16  is a side elevation view of the decorative foldable door frame of  FIGS. 15A-15D  in an installed position in accordance with another embodiment. 
       
    
    
       [0064]    It will be noted that throughout the appended drawings, like features are identified by like reference numerals. 
       DETAILED DESCRIPTION 
       [0065]    In embodiments, there are disclosed decorative foldable frames, decorative foldable frame assemblies, decorative foldable door members and methods for installing and/or using the same. 
         [0066]    Referring now to the drawings, and more particularly to  FIG. 1 , there is shown a perspective view of a wall  9  defining a door opening  11 . It is to be mentioned that the door opening  11  may also be understood to be a window opening, a garage opening and any other suitable opening for receiving a decorative foldable door frame  10  as described below. The opening  11  may be defined in the wall  9  by peripheral external surfaces  14   a ,  14   b  and an internal surface  12  which has a lateral length  13  (i.e., the thickness of the wall  9  or of the structure).  FIG. 1  shows that edges  15   a ,  15   b  are defined at meeting points of the peripheral external surfaces  14   a ,  14   b  and the internal surface  12 . 
         [0067]    Referring now to  FIGS. 2 ,  3  and  4 , there is shown the decorative foldable door frame  10 . The decorative foldable door frame  10  is to be interfacing with the peripheral external surfaces  14   a ,  14   b  and the internal surface  12  of the wall  9  defining the door opening  11 . The decorative foldable door frame  10  includes internal mounting elements  16   a ,  16   b . Each one of the internal mounting elements  16   a ,  16   b  defines an internal mounting surface  18   a ,  18   b  to be interfacing with the internal surface  12  and external surfaces  20   a ,  20   b . The decorative foldable door frame  10  further includes external mounting elements  24   a ,  24   b , where each one of the external mounting elements  24   a ,  24   b  is adjacent to longitudinal sides  26 ,  27  of the internal mounting elements  16   a ,  16   b.    
         [0068]    The external mounting elements  24   a ,  14   b  include or define internal mounting surfaces  28   a ,  28   b  which can fixedly interface with the peripheral external surfaces  14   a ,  14   b  respectively and external surfaces  30   a ,  30   b.    
         [0069]    Additionally, the decorative foldable door frame  10  includes foldable layers  22   a ,  22   b . As shown in  FIG. 2 , the foldable layer  22   a  covers or layers the external surface  30   a  of the external mounting element  24   a  and the external surface  20   a  of the internal mounting element  16   a , totally, or partially. On the other hand, the foldable layer  22   b  covers or layers the external surface  30   b  of the external mounting element  24   b  and the external surface  20   b  of the internal mounting element  16   b , totally, or partially. 
         [0070]    Still referring to  FIG. 2 , the foldable layers  22   a ,  22   b  totally covers the external surfaces  20   a ,  20   b ,  30   a ,  30   b  of the internal mounting elements  16   a ,  16   b  and the adjacent external mounting elements  24   a ,  24   b.    
         [0071]    According to an embodiment, the foldable layers  22   a ,  22   b  may be integrally formed for allowing the decorative foldable door frame  10  to fold and unfold to adopt any positions between a non-installed position ( FIGS. 2 ,  3  and  4 ) and an interfacing position ( FIG. 5 ). 
         [0072]    Now referring to  FIGS. 3 and 4 , there is shown the internal mounting elements  16   a  with the external mounting element  24   a  ( FIG. 3 ) and the internal mounting elements  16   b  with the external mounting element  24   b  ( FIG. 4 ). The internal mounting elements  16   a ,  16   b  each defines respective longitudinal opposed ends  36   a ,  37   a ,  36   b ,  37   b . As shown, the end  37   a  of the internal mounting element  16   a  includes a mating connector  38  ( FIG. 3 ) which can releasably connect with a corresponding mating connector  40  on the end  36   b  of the internal mounting element  16   b  ( FIG. 4 ). However, it is to be noted that the internal mounting elements  16   a ,  16   b  may be integrally formed such that a decorative foldable door frame  10  may include only one internal mounting element and adjacent external mounting elements  24   a ,  24   b  without any mating connectors of the internal mounting element. 
         [0073]    Furthermore, the internal mounting element  16   a  defines a longitudinal edge  42  as the internal mounting element  16   b  defines a longitudinal edge  46  ( FIG. 2 ). Also, the external mounting elements  24   a ,  24   b  each define a corresponding edge  44 ,  48  ( FIG. 2 ) for interfacing with the longitudinal edges  42 ,  46  of the internal mounting elements  16   a ,  16   b  when the decorative foldable door frame  10  adopts an interfacing position ( FIG. 5 ). 
         [0074]    Now referring to  FIGS. 2 ,  3 ,  4  and  5 , the longitudinal edge  42  of the internal mounting element  16   a  and the longitudinal edge  46  of the internal mounting element  16   b  define a 45° longitudinal edge. Moreover, the corresponding edge  44  of the external mounting element  24   a  and the corresponding edge  48  of the external mounting element  24   b  define a corresponding 45° longitudinal edge for interfacing with the longitudinal edges  42 ,  46  of the internal mounting elements  16   a ,  16   b  when adopting the interfacing position ( FIG. 5 ). 
         [0075]    Furthermore, the internal mounting elements  16   a ,  16   b  interact with the external mounting elements  24   a ,  24   b  for creating a 90° angle ( FIGS. 3 and 4 ). As shown on  FIG. 5 , the 45° edges  42 ,  46  and the corresponding 45° edges  44 ,  48  interact and interface to position the decorative foldable door frame  10  in its interfacing position. 
         [0076]    Also, the internal mounting elements  16   a ,  16   b  and/or the external mounting elements  24   a ,  24   b  may be fixed to the internal surface  12  or the peripheral external surfaces  14   a ,  14   b  ( FIGS. 1 and 5 ) of wall  9  defining the door opening  11  using, without limitation, screws, nails, glue, dove tail elements and any other suitable fastener for fixing the internal mounting elements  16   a ,  16   b  and/or the external mounting elements  24   a ,  24   b  to the internal surface  12  or to the peripheral external surfaces  14   a ,  14   b . More preferably, the internal mounting elements  16   a ,  16   b  are interfacing with the internal surface  12  and the external mounting elements  24   a ,  24   b  are fixed to the peripheral external surfaces  14   a ,  14   b.    
         [0077]    According to an embodiment, the internal mounting elements  16   a ,  16   b  and the external mounting elements  24   a ,  24   b  may include, without limitation, a medium-density fiberboard material (i.e., MDF), a low-density fiberboard material (i.e., LDF), a high-density fiberboard material (i.e., HDF), a particle board, a wood material, a metallic material, a polymeric material, any combinations, and any other suitable material for use of the decorative foldable door frame  10  in indoor conditions or in outdoor conditions (or in both indoor and outdoor conditions). 
         [0078]    According to another embodiment, the foldable layers  22   a ,  22   b  may include, without limitation, a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material, any combinations, and any suitable material for allowing the decorative foldable door frame  10  to be folded and unfolded between a non-installed position ( FIGS. 2 ,  3 ,  4 ) and an interfacing position ( FIG. 5 ). Thus, the foldable layers  22   a ,  22   b  need to be flexible and strength such as to fold and unfolded without damage or with reduced risks of damages. 
         [0079]    As shown in  FIGS. 2-5 , the foldable layers  22   a ,  22   b  may cover the internal mounting surfaces  18   a ,  28   a ,  18   b ,  28   b  of the internal mounting elements  16   a ,  16   b  and of the external mounting elements  24   a ,  24   b . However, it is to be noted that the foldable layers  22   a ,  22   b  may partially or totally covers the internal mounting surfaces  18   a ,  28   a ,  18   b ,  28   b  of the internal mounting elements  16   a ,  16   b  and of the external mounting elements  24   a ,  24   b.    
         [0080]    According to another embodiment, the foldable layers  22   a ,  22   b  may also cover the external surfaces  20   a ,  30   a ,  20   b ,  30   b  of the internal mounting elements  16   a ,  16   b  and of the external mounting elements  24   a ,  24   b . It is to be noted that in both cases, the foldable layers  22   a ,  22   b  may be weakened at longitudinal lines (not shown) corresponding to the longitudinal sides  26 ,  27  respectively between the internal mounting element  16   a  and the external mounting element  24   a  and the internal mounting element  16   b  and the external mounting element  24   b . In this case, the decorative foldable door frame  10  may fold and unfold to adopt any position between the non installed position ( FIGS. 2-4  and  3 ) and the interfacing position ( FIG. 5 ). 
         [0081]    According to another embodiment, the foldable layers  22   a ,  22   b  may partially or totally cover the external surfaces  20   a ,  30   a ,  20   b ,  30   b  of the internal mounting elements  16   a ,  16   b  and of the external mounting elements  24   a ,  24   b.    
         [0082]    In the scenario where the foldable layers  22   a ,  22   b  cover the internal mounting surfaces  18   a ,  28   a ,  18   b ,  28   b  of the internal mounting elements  16   a ,  16   b  and the external mounting elements  24   a ,  24   b , the foldable layers  22   a ,  22   b  may further include at least one foldable fin (i.e., or projecting portion, not shown) outwardly extending from the foldable layers  22   a ,  22   b.    
         [0083]    It is to be notated that, the internal mounting element  16   a  adjacent with the external mounting element  24   a  via the foldable layer  22   a  and the internal mounting element  16   b  adjacent with the external mounting element  24   b  via the foldable layer  22   b  may come into a kit for allowing a user to releasably connect them, via the mating connectors  38  and  40  of the internal mounting elements  16   a ,  16   b.    
         [0084]    It is to be noted that the ends of the external mounting elements  24   a ,  24   b  opposite the ends  37   a ,  36   b  with the mating connectors each include a mating connector for releasably connecting with a corresponding mating connector (not shown) of a decorative element (i.e., a decorative molding). 
         [0085]    According to another embodiment and referring now to  FIGS. 6-9 , there is shown a decorative foldable door member  100 . The decorative foldable door member  100  includes an internal mounting element  112  defining internal interfacing surfaces  114   a ,  114   b  and an external surface  116 . The decorative foldable door member  100  also includes external mounting elements  118   a ,  118   b  adjacent to each longitudinal ends  120 ,  122  of the internal mounting element  112 . The external mounting elements  118   a ,  118   b  define external surfaces  124   a ,  124   b  and internal interfacing surfaces  126   a ,  126   b . One internal interfacing surface  126   a  of the external mounting elements  118   a  is for interfacing with the internal interfacing surface  126   b  of the external mounting element  118   b  when the decorative foldable door member  100  is in an interfacing position ( FIGS. 6 ,  7  and  9 ). The decorative foldable door member  100  further includes a foldable layer  128  which covers the external surfaces  124   a ,  124   b  and  116  of the external mounting elements  118   a ,  118   b  and of the internal mounting element  112 . It is however to be noted that a foldable layer  128  may also covers the internal interfacing surfaces  114   a ,  114   b ,  126   a  and/or  126   b  of the internal mounting element  112  and of the external mounting elements  118   a ,  118   b.    
         [0086]    According to  FIGS. 6-9 , the foldable layer  128  covers the external surface  116  of the internal mounting element  112  and the external surface  124   a ,  124   b  of the external mounting elements  118   a ,  118   b . The foldable layer  128  is integrally formed for allowing the decorative foldable door member  100  to fold and unfold to adopt any position between a non-interfacing position ( FIG. 8 ) and an interfacing position ( FIGS. 6 ,  7  and  9 ). 
         [0087]    When adopting the interfacing position ( FIGS. 6 ,  7  and  9 ), the internal interfacing surfaces  126   a ,  126   b  of the external mounting elements  118   a ,  118  are interfacing for creating a mating connector  130  at a distal end  132  ( FIG. 9 ) of the decorative foldable door member  100  to receive at least one corresponding mating connector  134 . In other words, each one of the external mounting elements  118   a ,  118   b  defines a recess  129   a ,  129   b  at an end opposed to the internal mounting surface  112  to be aligned with the other one of the recess  129   a ,  129   b  when in the interfacing position and thereby providing the decorative foldable door member  100  with a mating connector  130  which has a suitable shape and configuration to releasably match with a corresponding mating connector  134  of another door member  135 . 
         [0088]    The external mounting elements  118   a ,  118   b  define a corresponding edge  140  for interfacing with the internal interfacing surface  114   a  of the internal mounting element  112  and a corresponding edge  142  for interfacing with the internal interfacing surface  114   b  of the internal mounting element  112  when the decorative foldable door member adopts the interfacing position ( FIGS. 6 ,  7  and  9 ). 
         [0089]    The internal interfacing surface  114   a  and the internal interfacing surface  114   b  define in  FIGS. 6-9  a 45° longitudinal edge. The internal interfacing surfaces  114   a ,  114   b  of the internal mounting element  112  include a 45° longitudinal edge for interfacing with the corresponding edges  140 ,  142  of the external mounting elements  118   a ,  118   b  respectively. However, it is to be noted that any suitable angle, shape and configuration may be used such as to allow the edges  140 ,  142  of the external mounting elements  118   a ,  118   b  to interface with the internal interfacing surfaces  114   a ,  114   b  of the internal mounting element  112  when the decorative foldable door member adopts its interfacing position. 
         [0090]    The internal mounting element  112  interacts with the two external mounting elements  118   a ,  118   b  for creating a 90° angle. 
         [0091]    According to an embodiment, the internal mounting element  112  and the external mounting elements  118   a ,  118   b  may include, without limitation, a medium-density fiberboard material, a wood material, a metallic material, a polymeric material, any combination, and any other suitable material. 
         [0092]    According to another embodiment, the foldable layer  128  may include, without limitation, a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material, any combination, and any other suitable material for allowing the decorative foldable door member  100  to be folded and unfolded between a non-installed position ( FIG. 8 ) and an interfacing position ( FIGS. 6 ,  7  and  9 ). Thus, the foldable layer  128  needs to be flexible and strength such as to fold and unfolded without damage or with reduced risks of damages. 
         [0093]    According to another embodiment, the foldable layer  128  may cover the internal interfacing surfaces  114   a ,  114   b  of the internal mounting element  112  and the external mounting elements  118   a ,  118   b . The foldable layer  128  may partially cover the internal interfacing surfaces  114   a ,  114   b  of the internal mounting element  112  and of the external mounting elements  118   a ,  118   b.    
         [0094]    According to another embodiment, the foldable layer  128  may cover the external surfaces  116 ,  124   a ,  124   b  of the internal/external mounting elements  112 ,  118   a  and  118   b . The foldable layer  128  may partially cover the external surfaces  116 ,  124   a  and  124   b  of the internal/external mounting elements  112 ,  118   a ,  118   b.    
         [0095]    According to another embodiment, the foldable layer  128  may further include at least one foldable fin (i.e., outwardly projecting portion) outwardly extending from the foldable layer  128 . Indeed, during the installation of the decorative foldable door member  100 , it will be easier with the fins or projecting portions (not shown) to control the position of the decorative foldable door member  100  between the non interlacing position and the interlacing position. 
         [0096]    According to another embodiment, the mating connector  130  formed within the external mounting elements  118   a ,  118   b  (i.e., at their respective ends) when in the interfacing position, may further define a compartment  144  for receiving a liquid composition (i.e. glue or adhesive composition) for facilitating the installation of the decorative foldable door member  100  and the connection with the corresponding mating connectors  134  of the other door members  135 . 
         [0097]    It is to be noted that in embodiments, the foldable layer  128  may be weakened at places corresponding to the longitudinal ends  120 ,  122  of the internal mounting element  112 . In this scenario, the decorative foldable door member  100  may fold and unfold to adopt any position between the non-interfacing position and the interfacing position. 
         [0098]    According to another embodiment and referring now to  FIGS. 10-13  and  14 A- 14 D, there is shown a foldable door frame assembly  200  to be interfacing with an opening defined by a wall. 
         [0099]    In  FIGS. 14A-14D , there is shown a perspective view of a wall  201  defining a door opening  202 . It is to be mentioned that the door opening  202  may also be understood to be a window opening, a garage opening and any other suitable opening for receiving a foldable door frame assembly  200  as described below. The opening  202  may be defined in the wall  201  by peripheral external surfaces  203   a - 203   f  and internal surfaces  205   a - 205   c  which have lateral lengths (i.e., the thickness of the wall  201  or of the structure).  FIGS. 14A-14D  show that edges are defined at meeting points of the peripheral external surfaces  203   a - 203   f  and the internal surfaces  205   a - 205   c.    
         [0100]    Referring now to  FIGS. 10-13 , there is shown the foldable door frame assembly  200 . The foldable door frame assembly  200  is to be interfacing with the peripheral external surfaces  203   a - 203   f  and the internal surfaces  205   a - 205   c  of the wall  201  defining the door opening  202 . The foldable door frame assembly  10  includes at least three decorative foldable door frames  211   a ,  211   b ,  211   c . Each one of the decorative foldable door frames  211   a ,  211   b ,  211   c  extends from another one of the decorative foldable door frames  211   a ,  211   b ,  211   c . The decorative foldable door assembly  211   a  includes internal mounting elements  212   a ,  212   b . Each one of the internal mounting elements  212   a ,  212   b  defines internal mounting surface  218   a ,  218   b  to be interfacing with the internal surface  205   a  and external surfaces  203   a ,  203   b . The decorative foldable door frame  211   a  further includes external mounting elements  236   a ,  236   b , where each one of the external mounting elements  236   a ,  236   b  is adjacent to longitudinal sides  242 ,  244  of the internal mounting elements  212   a ,  212   b.    
         [0101]    The external mounting elements  236   a ,  236   b  include or define internal mounting surfaces  254   a ,  254   b  which can interface with the peripheral external surfaces  203   a ,  203   b  respectively and external surfaces  259   a ,  259   b.    
         [0102]    Additionally, the decorative foldable door frame  211   a  includes foldable layers  230   a ,  230   b . The foldable layers  230   a  covers or layers the external surface  259   a  of the external mounting element  236   a  and the external surface  224   a  of the internal mounting element  212   a , totally, or partially. On the other hand, the foldable layer  230   b  covers or layers the external surface  259   b  of the external mounting element  236   b  and the external surface  224   b  of the internal mounting element  212   b , totally, or partially. 
         [0103]    The foldable layers  230   a ,  230   b  totally covers the external surfaces  224   a ,  224   b ,  259   a ,  259   b  of the internal mounting elements  212   a ,  212   b  and the adjacent external mounting elements  236   a ,  236   b.    
         [0104]    According to an embodiment, the foldable layers  230   a ,  230   b  may be integrally formed for allowing the decorative foldable door frame  211   a  to fold and unfold to adopt any positions between a non installed position ( FIGS. 10 ,  11 ,  14 A and  14 B) and an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0105]    The internal mounting elements  212   a ,  212   b  each defines respective longitudinal opposed ends  260   a ,  260   b ,  262   a ,  262   b . As shown, the end  260   a  of the internal mounting element  212   a  includes a mating connector  272  which can releasably connect with a corresponding mating connector  274  on the end  260   b  of the internal mounting element  212   b . However, it is to be noted that the internal mounting elements  212   a ,  212   b  may be integrally formed such that a decorative foldable door frame  211   a  may include only one internal mounting element and adjacent external mounting elements  236   a ,  236   b  without any mating connectors on the internal mounting element. 
         [0106]    Furthermore, the internal mounting element  212   a  defines a longitudinal edge  284   a  as the internal mounting element  212   b  defines a longitudinal edge  284   b . Also, the external mounting elements  236   a ,  236   b  each define a corresponding edge  286   a ,  286   b  for interfacing with the longitudinal edges  284   a ,  284   b  of the internal mounting elements  212   a ,  212   b  when the decorative foldable door frame  211   a  adopts an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0107]    The longitudinal edge  284   a  of the internal mounting element  212   a  and the longitudinal edge  284   b  of the internal mounting element  212   b  define a 90° longitudinal edge. Moreover, the corresponding edge  286   a  of the external mounting element  236   a  and the corresponding edge  286   b  of the external mounting element  236   b  define a corresponding 90° longitudinal edge for interfacing with the longitudinal edges  284   a ,  284   b  of the internal mounting elements  212   a ,  212   b  when adopting the interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0108]    Similarly, the decorative foldable door frame  211   b  includes internal mounting elements  214   a ,  214   b . Each one of the internal mounting elements  214   a ,  214   b  defines internal mounting surface  220   a ,  220   b  to be interfacing with the internal surface  205   b  and external surfaces  203   c ,  203   d . The decorative foldable door frame  211   b  further includes external mounting elements  238   a ,  238   b , where each one of the external mounting elements  238   a ,  238   b  is adjacent to longitudinal sides  246 ,  248  of the internal mounting elements  214   a ,  214   b.    
         [0109]    The external mounting elements  238   a ,  238   b  include or define internal mounting surfaces  256   a ,  256   b  which can interface with the peripheral external surfaces  203   c ,  203   d  respectively and external surfaces  259   c ,  259   d.    
         [0110]    Additionally, the decorative foldable door frame  211   b  includes foldable layers  232   a ,  232   b . The foldable layer  232   a  covers or layers the external surface  259   c  of the external mounting element  238   a  and the external surface  226   a  of the internal mounting element  214   a , totally, or partially. On the other hand, the foldable layer  232   b  covers or layers the external surface  259   d  of the external mounting element  238   b  and the external surface  226   b  of the internal mounting element  214   b , totally, or partially. 
         [0111]    The foldable layers  232   a ,  232   b  totally covers the external surfaces  226   a ,  226   b ,  259   c ,  259   d  of the internal mounting elements  214   a ,  214   b  and the adjacent external mounting elements  238   a ,  238   b.    
         [0112]    According to an embodiment, the foldable layers  232   a ,  232   b  may be integrally formed for allowing the decorative foldable door frame  211   b  to fold and unfold to adopt any positions between a non installed position ( FIGS. 10 ,  11 ,  14 A and  14 B) and an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0113]    The internal mounting elements  214   a ,  214   b  each defines respective longitudinal opposed ends  264   a ,  264   b ,  266   a ,  266   b . As shown, the end  264   a  of the internal mounting element  214   a  includes a mating connector  276  which can releasably connect with a corresponding mating connector  278  on the end  266   a  of the internal mounting element  214   b . However, it is to be noted that the internal mounting elements  214   a ,  214   b  may be integrally formed such that a decorative foldable door frame  211   b  may include only one internal mounting element and adjacent external mounting elements  238   a ,  238   b  without any mating connectors on the internal mounting element. 
         [0114]    Furthermore, the internal mounting element  214   a  defines a longitudinal edge  288   a  as the internal mounting element  214   b  defines a longitudinal edge  288   b . Also, the external mounting elements  238   a ,  238   b  each define a corresponding edge  290   a ,  290   b  for interfacing with the longitudinal edges  288   a ,  288   b  of the internal mounting elements  214   a ,  214   b  when the decorative foldable door frame  211   b  adopts an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0115]    The longitudinal edge  288   a  of the internal mounting element  214   a  and the longitudinal edge  288   b  of the internal mounting element  214   b  define a 90° longitudinal edge. Moreover, the corresponding edge  290   a  of the external mounting element  238   a  and the corresponding edge  290   b  of the external mounting element  238   b  define a corresponding 90° longitudinal edge for interfacing with the longitudinal edges  288   a ,  288   b  of the internal mounting elements  214   a ,  214   b  when adopting the interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0116]    Similarly, the decorative foldable door frame  211   c  includes internal mounting elements  216   a ,  216   b  (It is to be noted that some reference numeral are not shown for the decorative foldable door frame  211   c , but can be referred to the foldable door frames  211   a  and  211   b ). Each one of the internal mounting elements  216   a ,  216   b  defines internal mounting surface  222   a ,  222   b  to be interfacing with the internal surface  205   c  and external surfaces  203   e ,  203   f . The decorative foldable door frame  211   c  further includes external mounting elements  240   a ,  240   b , where each one of the external mounting elements  240   a ,  240   b  is adjacent to longitudinal sides  250 ,  252  of the internal mounting elements  216   a ,  216   b.    
         [0117]    The external mounting elements  240   a ,  240   b  include or define internal mounting surfaces  258   a ,  258   b  which can interface with the peripheral external surfaces  203   e ,  203   f  respectively and external surfaces  259   e ,  259   f.    
         [0118]    Additionally, the decorative foldable door frame  211   c  includes foldable layers  234   a ,  234   b . The foldable layer  234   a  covers or layers the external surface  259   e  of the external mounting element  240   a  and the external surface  228   a  of the internal mounting element  216   a , totally, or partially. On the other hand, the foldable layer  234   b  covers or layers the external surface  259   f  of the external mounting element  240   b  and the external surface  228   b  of the internal mounting element  218   b , totally, or partially. 
         [0119]    The foldable layers  234   a ,  234   b  totally covers the external surfaces  228   a ,  228   b ,  259   e ,  259   f  of the internal mounting elements  216   a ,  216   b  and the adjacent external mounting elements  240   a ,  240   b.    
         [0120]    According to an embodiment, the foldable layers  234   a ,  234   b  may be integrally formed for allowing the decorative foldable door frame  211   c  to fold and unfold to adopt any positions between a non installed position ( FIGS. 10 ,  11 ,  14 A and  14 B) and an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0121]    The internal mounting elements  216   a ,  216   b  each defines respective longitudinal opposed ends  268   a ,  268   b ,  270   a ,  270   b . As shown, the end  268   a  of the internal mounting element  216   a  includes a mating connector  280  which can releasably connect with a corresponding mating connector  284  on the end  270   a  of the internal mounting element  216   b . However, it is to be noted that the internal mounting elements  216   a ,  216   b  may be integrally formed such that a decorative foldable door frame  211   c  may include only one internal mounting element and adjacent external mounting elements  240   a ,  240   b  without any mating connectors on the internal mounting element. 
         [0122]    Furthermore, the internal mounting element  216   a  defines a longitudinal edge  292   a  as the internal mounting element  216   b  defines a longitudinal edge  292   b . Also, the external mounting elements  240   a ,  240   b  each define a corresponding edge  294   a ,  294   b  for interfacing with the longitudinal edges  292   a ,  292   b  of the internal mounting elements  216   a ,  216   b  when the decorative foldable door frame  211   c  adopts an interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0123]    The longitudinal edge  292   a  of the internal mounting element  216   a  and the longitudinal edge  292   b  of the internal mounting element  216   b  define a 90° longitudinal edge. Moreover, the corresponding edge  294   a  of the external mounting element  240   a  and the corresponding edge  294   b  of the external mounting element  240   b  define a corresponding 90° longitudinal edge for interfacing with the longitudinal edges  292   a ,  292   b  of the internal mounting elements  216   a ,  216   b  when adopting the interfacing position ( FIGS. 12 ,  13 ,  14 C and  14 D). 
         [0124]    Also, the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and/or the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b  may be fixed to the internal surfaces  205   a ,  205   b  and/or  205   c  or the peripheral external surfaces  203   a - f  of wall  201  defining the door opening  202  using, without limitation, screws, nails, glue, dove tail elements and any other suitable fastener for fixing the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and/or the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b  to the internal surfaces  205   a ,  205   b  and/or  205   c  or to the peripheral external surfaces  203   a - f . More preferably, the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  are interfacing with the internal surface  205   a ,  205   b  and/or  205   c  and the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b  are fixed to the peripheral external surfaces  203   a - f.    
         [0125]    According to an embodiment, the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b  may include, without limitation, a medium-density fiberboard material (i.e., MDF), a low-density fiberboard material (i.e., LDF), a high-density fiberboard material (i.e., HDF), a particle board, a wood material, a metallic material, a polymeric material, any combinations, and any other suitable material for use of the decorative foldable door frames  211   a ,  211   b ,  211   c  in indoor conditions or in outdoor conditions (or in both indoor and outdoor conditions). 
         [0126]    According to another embodiment, the foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  may include, without limitation, a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material, any combinations, and any suitable material for allowing the decorative foldable door assembly  200  to be folded and unfolded between a non-installed position and an interfacing position. Thus, the foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  need to be flexible and strength such as to fold and unfolded without damage. 
         [0127]    The foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  may cover the internal mounting surfaces  218   a ,  218   b ,  220   a ,  220   b ,  222   a ,  222   b  of the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and of the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b . However, it is to be noted that the foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  may partially or totally covers the internal mounting surfaces  218   a ,  218   b ,  220   a ,  220   b ,  222   a ,  222   b  of the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and of the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b.    
         [0128]    According to another embodiment, the foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  may also cover the external surfaces  224   a ,  224   b ,  226   a ,  226   b ,  228   a ,  228   b ,  259   a - f  of the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and of the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b . It is to be noted that in both cases, the foldable layers  230   a ,  230   b ,  232   a ,  232   b ,  234   a ,  234   b  may be weakened at longitudinal lines (not shown) corresponding to the longitudinal sides respectively between the internal mounting elements  212   a ,  212   b ,  214   a ,  214   b ,  216   a ,  216   b  and the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a ,  240   b . In this case, the decorative foldable door frames  211   a - c  may fold and unfold to adopt any position between the non-installed position and the interlacing position. 
         [0129]    In use and referring now to  FIGS. 14A-14D , the foldable door assembly  200  is in its folded position in  FIG. 14A . In  FIG. 14B , external mounting elements  236   a ,  238   a  and  240   a  adopt unfolded positions and a portion of the foldable door frame assembly  200  is introduced within the opening  202  defined by the wall  201 . In  FIG. 14C , the external mounting elements  236   b ,  238   b  and  240   c  also adopt the unfolded positions. Then, the external mounting elements  236   a ,  236   b ,  238   a ,  238   b ,  240   a  and  240   b  can now interface with the peripheral external surfaces  203   a - 203   f  of the wall  201 .  FIG. 14D  shows that the foldable door frame assembly  200  is operative since a door can then be opened and closed. 
         [0130]    According to another embodiment and referring now to  FIGS. 15A-15D  and  16 , there is shown another embodiment of a decorative foldable frame  300 .  FIG. 15A  is a side elevation view of a decorative foldable door frame  300  in a non-installed position.  FIG. 15B  is another side elevation view of the decorative foldable door frame  300  of  FIG. 15A  in a non-installed position.  FIG. 15C  is another side elevation view of the decorative foldable door frame  300  of  FIG. 15A  in a non-installed position.  FIG. 15D  is another side elevation view of the decorative foldable door frame  300  of  FIG. 15A  in a non-installed position, where the mating connectors are releasably connected and  FIG. 16  is a side elevation view of the decorative foldable door frame  300  of  FIGS. 15A-15D  in an installed position in accordance with another embodiment. 
         [0131]    The decorative foldable door frame  300  is to be interfacing with the peripheral external surfaces  14   a ,  14   b  and the internal surface  12  of the wall  9  defining the door opening  11  ( FIG. 1 ). The decorative foldable door frame  300  includes internal mounting elements  316   a ,  316   b . Each one of the internal mounting elements  316   a ,  316   b  defines an internal mounting surface  318   a ,  318   b  to be interlacing with the internal surface  12  and external surfaces  320   a ,  320   b . The decorative foldable door frame  300  further includes external mounting elements  324   a ,  324   b , where each one of the external mounting elements  324   a ,  324   b  is adjacent to longitudinal sides  326 ,  327  of the internal mounting elements  316   a ,  316   b.    
         [0132]    The external mounting elements  324   a ,  324   b  include or define internal mounting surfaces  328   a ,  328   b  which can fixedly interface with the peripheral external surfaces  14   a ,  14   b  respectively and external surfaces  330   a ,  330   b.    
         [0133]    Additionally, the decorative foldable door frame  300  includes foldable layers  322   a ,  322   b . As shown in  FIGS. 15A-16 , the foldable layer  322   a  covers or layers the external surface  330   a  of the external mounting element  324   a  and the external surface  320   a  of the internal mounting element  316   a , totally, or partially. On the other hand, the foldable layer  322   b  covers or layers the external surface  330   b  of the external mounting element  324   b  and the external surface  320   b  of the internal mounting element  316   b , totally, or partially. 
         [0134]    Still referring to  FIGS. 15A-16 , the foldable layers  322   a ,  322   b  totally covers the external surfaces  320   a ,  320   b ,  330   a ,  330   b  of the internal mounting elements  316   a ,  316   b  and the adjacent external mounting elements  324   a ,  324   b.    
         [0135]    According to an embodiment, the foldable layers  322   a ,  322   b  may be integrally formed for allowing the decorative foldable door frame  300  to fold and unfold to adopt any positions between a non-installed position ( FIGS. 15A ,  15 B,  15 C and  15 D) and an interfacing position ( FIG. 16 ). 
         [0136]    Still referring to  FIGS. 15A-16 , there is shown the internal mounting elements  316   a  with the external mounting element  324   a  and the internal mounting elements  316   b  with the external mounting element  324   b . The internal mounting elements  316   a ,  316   b  each defines respective longitudinal opposed ends  336   a ,  337   a ,  336   b ,  337   b . As shown, the end  337   a  of the internal mounting element  316   a  includes a mating connector  338  which can releasably connect with a corresponding mating connector  340  on the end  336   b  of the internal mounting element  316   b  ( FIG. 16 ). However, it is to be noted that the internal mounting elements  316   a ,  316   b  may be integrally formed such that a decorative foldable door frame  300  may include only one internal mounting element and adjacent external mounting elements  324   a ,  324   b  without any mating connectors of the internal mounting element. 
         [0137]    Furthermore, the internal mounting element  316   a  defines a longitudinal edge  342  as the internal mounting element  316   b  defines a longitudinal edge  346  ( FIGS. 15B ,  15 C and  15 D). Also, the external mounting elements  324   a ,  324   b  each define a corresponding edge  344 ,  348  ( FIGS. 15B ,  15 C and  15 D) for interfacing with the longitudinal edges  342 ,  346  of the internal mounting elements  316   a ,  316   b  when the decorative foldable door frame  300  adopts an interfacing position ( FIGS. 15A and 16 ). The longitudinal edge  342  of the internal mounting element  316   a  and the longitudinal edge  346  of the internal mounting element  316   b  define a flat longitudinal edge. Moreover, the corresponding edge  344  of the external mounting element  324   a  and the corresponding edge  348  of the external mounting element  324   b  define a corresponding flat longitudinal edge for interfacing with the flat longitudinal edges  342 ,  346  of the internal mounting elements  316   a ,  316   b  when adopting the interfacing position ( FIGS. 15A and 16 ). It is to be noted that the external mounting elements  324   a ,  324   b  may fold and unfolded between 0° and 90° from the internal mounting elements  316   a ,  316   b  respectively. A shown in  FIG. 15A , the flat longitudinal edges  342 ,  346  interface the flat corresponding edges  344 ,  348  of the external mounting elements  324   a ,  324   b  for allowing the external mounting elements  324   a ,  324   b  to be in the interfacing position for interfacing with the peripheral external surfaces  14   a ,  14   b  ( FIG. 1 ). However, in  FIG. 15B , there is shown that the flat longitudinal edges  342 ,  346  do not interface the flat corresponding edges  344 ,  348  of the external mounting elements  324   a ,  324   b  for allowing the external mounting elements  324   a ,  324   b  to be in the non-installed position. Then, there is shown in  FIG. 15C  that the flat longitudinal edges  342 ,  346  do not interface the flat corresponding edges  344 ,  348  of the external mounting elements  324   a ,  324   b  for allowing the external mounting elements  324   a ,  324   b  to be in the interfacing position for interfacing with the peripheral external surfaces  14   a ,  14   b  ( FIG. 1 ). In  FIG. 15C , the external mounting elements  324   a ,  324   b  are at angle of about 45° from the respective internal mounting elements  316   a ,  316   b . In  FIG. 15D , there is shown that the flat longitudinal edges  342 ,  346  do not interface the flat corresponding edges  344 ,  348  of the external mounting elements  324   a ,  324   b  for allowing the external mounting elements  324   a ,  324   b  to be in the non-installed position. However, in  FIG. 15D , the mating connector  338  is releasably connected with the corresponding mating connector  340 . 
         [0138]    Furthermore, the internal mounting elements  316   a ,  316   b  interact with the external mounting elements  324   a ,  324   b  for creating a 90° angle ( FIG. 16 ). As shown on  FIG. 16 , the flat edges  342 ,  346  and the flat edges  344 ,  348  interact and interface to position the decorative foldable door frame  300  in its interfacing position (i.e., the internal mounting elements  316   a ,  316   b  and the external mounting elements  324   a ,  324   b  are at a 90° angle). 
         [0139]    Also, the internal mounting elements  316   a ,  316   b  and/or the external mounting elements  324   a ,  324   b  may be fixed to the internal surface  12  ( FIG. 1 ) or the peripheral external surfaces  14   a ,  14   b  ( FIG. 1 ) of wall  9  defining the door opening  11  using, without limitation, screws, nails, glue, dove tail elements and any other suitable fastener for fixing the internal mounting elements  316   a ,  316   b  and/or the external mounting elements  324   a ,  324   b  to the internal surface  12  or to the peripheral external surfaces  14   a ,  14   b . More preferably, the internal mounting elements  316   a ,  316   b  are interfacing with the internal surface  12  and the external mounting elements  324   a ,  324   b  are fixed to the peripheral external surfaces  14   a ,  14   b.    
         [0140]    According to an embodiment, the internal mounting elements  316   a ,  316   b  and the external mounting elements  324   a ,  324   b  may include, without limitation, a medium-density fiberboard material (i.e., MDF), a low-density fiberboard material (i.e., LDF), a high-density fiberboard material (i.e., HDF), a particle board, a wood material, a metallic material, a polymeric material, any combinations, and any other suitable material for use of the decorative foldable door frame  300  in indoor conditions or in outdoor conditions (or in both indoor and outdoor conditions). 
         [0141]    According to another embodiment, the foldable layers  322   a ,  322   b  may include, without limitation, a thermoplastic material, a plastic material, a polymeric material, a metallic material, a linerboard material, any combinations, and any suitable material for allowing the decorative foldable door frame  300  to be folded and unfolded between a non-installed position ( FIGS. 15A-15D ) and an interfacing position ( FIG. 16 ). Thus, the foldable layers  322   a ,  322   b  need to be flexible and strength such as to fold and unfolded without damage or with reduced risks of damages. 
         [0142]    As shown in  FIGS. 15A-16 , the foldable layers  322   a ,  322   b  may cover the internal mounting surfaces  318   a ,  328   a ,  318   b ,  328   b  of the internal mounting elements  316   a ,  316   b  and of the external mounting elements  324   a ,  324   b . However, it is to be noted that the foldable layers  322   a ,  322   b  may partially or totally covers the internal mounting surfaces  318   a ,  328   a ,  318   b ,  328   b  of the internal mounting elements  316   a ,  316   b  and of the external mounting elements  324   a ,  324   b.    
         [0143]    According to another embodiment, the foldable layers  322   a ,  322   b  may also cover the external surfaces  320   a ,  330   a ,  320   b ,  330   b  of the internal mounting elements  316   a ,  316   b  and of the external mounting elements  324   a ,  324   b . It is to be noted that in both cases, the foldable layers  322   a ,  322   b  may be weakened at longitudinal lines (not shown) between the internal mounting element  316   a  and the external mounting element  324   a  and the internal mounting element  316   b  and the external mounting element  324   b . In this case, the decorative foldable door frame  300  may fold and unfold to adopt any position between the non installed position ( FIGS. 15A-15D ) and the interfacing position ( FIG. 16 ). 
         [0144]    According to another embodiment, the foldable layers  322   a ,  322   b  may partially or totally cover the external surfaces  320   a ,  330   a ,  320   b ,  330   b  of the internal mounting elements  316   a ,  316   b  and of the external mounting elements  324   a ,  324   b.    
         [0145]    In the scenario where the foldable layers  322   a ,  322   b  cover the internal mounting surfaces  318   a ,  328   a ,  318   b ,  328   b  of the internal mounting elements  316   a ,  316   b  and the external mounting elements  324   a ,  324   b , the foldable layers  322   a ,  322   b  may further include at least one foldable fin (i.e., or projecting portion, not shown) outwardly extending from the foldable layers  322   a ,  322   b.    
         [0146]    It is to be notated that, the internal mounting element  316   a  adjacent with the external mounting element  324   a  via the foldable layer  322   a  and the internal mounting element  316   b  adjacent with the external mounting element  324   b  via the foldable layer  322   b  may come into a kit for allowing a user to releasably connect them, via the mating connectors  338  and  340  of the internal mounting elements  316   a ,  316   b.    
         [0147]    It is to be noted that the ends of the external mounting elements  324   a ,  324   b  opposite the ends  337   a ,  336   b  with the mating connectors each include a mating connector  400 ,  401  for releasably connecting with a corresponding mating connector (not shown) of a decorative element (i.e., a decorative molding). 
         [0148]    While preferred embodiments have been described above and illustrated in the accompanying drawings, it will be evident to those skilled in the art that modifications may be made without departing from this disclosure. Such modifications are considered as possible variants comprised in the scope of the disclosure.

Summary:
The present document describes a decorative foldable frame for interfacing with a surface defining an internal surface and a peripheral external surface, the decorative foldable frame comprising: an internal mounting element having an internal mounting surface for interfacing with the internal surface and an external surface, the internal mounting element defining a first end and a second end; at least two external mounting elements adjacent to each one of the first and second ends of the internal mounting element, each one of the at least two external mounting elements having an internal mounting surface for interfacing with the peripheral external surface and an external surface; and a foldable layer covering at least one of: the internal mounting surface and the external surface of the internal mounting element or the at least two external mounting elements; wherein the foldable layer is integrally formed for allowing the decorative foldable frame to fold and unfold to adopt any position between a non-installed position and an interfacing position.