Patent Publication Number: US-2020277792-A1

Title: Railing System With Concealed Anchor System

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to and the full benefit of U.S. Non-Provisional patent application Ser. No. 15/461,437, filed Mar. 16, 2017, and titled “RAILING SYSTEM WITH CONCEALED ANCHOR SYSTEM”, the entire contents of which are incorporated in this application by reference. 
     BACKGROUND OF THE DISCLOSURE 
     Architecture with designs that require a railing have been common for centuries. For example, a deck is a flat surface capable of supporting weight connected to a building. It is customarily constructed outdoors and is often elevated from the ground. Verandas and observation decks are variations on how a deck may be implemented in residential and commercial buildings. Decks usually have post and beam architecture or cantilever construction. Post and beam construction use posts anchored to piers in the ground. Cantilever decks use floor joists to stabilize the floor. Upon installation, decks must be waterproofed and flashed to minimize significant safety issues. 
     These structural decks are then enclosed by railings to further ensure safety, and the railings provide an opportunity to add an aesthetic detail to the construction. These railings are available in a variety of forms, though the appropriate railing may depend on what type and design of building is constructed. For example, there are hand railings, deck railings, cable railings, and guard rails. Each of these railings have specific guidelines or requirements for structural strength and height. Railings may also have different height requirements depending on who the principal user of the railing might be, such as an adult, a child, or a person with a disability. 
     Each railing may also have different requirements depending on which railing type is being used. A cable railing, for example, may provide support while not obstructing someone&#39;s view. This results in thinner cable being used for installation. To compensate for the difference in railing, a cable railing requires more rigid frames to counteract the force applied to the end posts by tensioning the cables. Cables must be adhered to building code requirements and provide minimal cable deflection. 
     Each railing system is made of disparate components tailored to that particular railing system. However, currently, the primary method of installing railing systems is to make the structural connection to the deck after waterproofing and after deck finishes have been installed. Further, a railing is often attached to the posts through a similarly invasive method. This creates a potential failure point for water intrusion, which leads to safety issues and risk of serious injury. 
     SUMMARY OF THE DISCLOSURE 
     What is needed is a system to secure a structural post prior to waterproofing and prior to deck finishes being installed. Further needed is a railing system that allows for the railing to connect without piercing the railing posts, finished deck, or any underlying waterproofing system. As a result, this limits the problems associated with structural fastening and waterproofing failures. This system can be used to secure railings in its various iterations, secure steps and stairs, and fortify guardrails. 
     The present disclosure relates to a guardrail module comprising a boot configured to secure the guardrail module to a stud of a concealed anchor system anchored to a surface by a base; a post extending vertically from the boot; an upper support brace extending perpendicular from the post, where the upper support brace is configured to support an upper board; and a lower support brace extending perpendicular from the post, where the lower support brace is located below the upper support brace, and where the lower support brace is configured to support a center board. In some aspects, the boot may comprise an aperture to fit over the stud. 
     Implementations may include one or more of the following features. In some implementations, the boot further may comprise at least one base support brace extending horizontally and perpendicular from the boot, where the at least one base support brace is configured to support a base board. In some embodiments, a bolt or washer inserted through the aperture may secure the boot to the stud. In some aspects, the boot further may comprise a guardrail post sleeve configured to accept the post. In some embodiments, the stud and the base of the concealed anchor system may be permanent fixtures. 
     In some implementations, Installation of the guardrail module may be temporary and provide safety during construction. In some aspects, the boot may be reusable. In some embodiments, the boot further may comprise at least one stability panel configured to stabilize the boot when the at least one stability panel is in contact with the surface. In some aspects, the at least one stability panel may comprise a non-skid material configured to limit unintended slipping of the guardrail module. In some embodiments, the at least one stability panel may be configured to be drilled onto the surface. 
     The present disclosure relates to a guardrail system that may comprise a plurality of guardrail modules. In some aspects, the guardrail system may comprise at least a first guardrail module comprising a first boot configured to secure the first guardrail module to a first stud of a concealed anchor system anchored to a surface by a first base, wherein the first boot may comprise a first aperture to fit over the first stud; a first post extending vertically from the first boot; a first upper support brace extending perpendicular from the first post; and a first lower support brace extending perpendicular from the first post where the first lower support brace is located below the first upper support brace. In some embodiments, the guardrail system may comprise a second guardrail module comprising a second boot configured to secure the first guardrail module to a second stud of the concealed anchor system anchored to the surface by a second base, wherein the second boot may comprise a second aperture to fit over the second stud; a second post extending vertically from the second boot; a second upper support brace extending perpendicular from the second post; and a second lower support brace extending perpendicular from the second post where the second lower support brace is located below the second upper support brace. 
     In some implementations, the guardrail system may comprise a first upper board extending between the first upper support brace and the second upper support brace, where the first upper support brace and the second upper support brace are configured to support the first upper board; and a first center board extending between the first lower support brace and the second lower support brace, where the first lower support brace and the second lower support brace are configured to support the first center board. Implementations may include one or more of the following features. In some aspects, the guardrail system may comprise a first base board, where the first boot further may include at least a first base support brace extending horizontally and perpendicular from the first boot, and the second boot further may include at least a second base support brace extending horizontally and perpendicular from the second boot, where the at least first base support brace and at least the second base support brace are configured to support the first base board. 
     In some aspects, a first bolt or washer may be inserted through the first aperture secures the first boot to the first stud. In some embodiments, one or both the first boot and second boot further may comprise a guardrail post sleeve configured to accept the post. In some implementations, one or both the first and the second stud and the first base and the second base of the concealed anchor system may be permanent fixtures. In some aspects, installation of the guardrail system may be temporary and provide safety during construction. 
     In some embodiments, the guardrail system may be installed along a perimeter of walking work surfaces. In some implementations, one or both the first boot and the second boot further may comprise at least one stability panel configured to stabilize the boot when the at least one stability panel is in contact with the surface. In some aspects, the at least one stability panel may comprise a non-skid material configured to limit unintended slipping of one or both the first guardrail module and the second guardrail module. In some embodiments, the at least one stability panel may be configured to be drilled onto the surface. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, that are incorporated in and constitute a part of this specification, illustrate several embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure: 
         FIG. 1  illustrates an exemplary railing module with concealed anchor system. 
         FIG. 2  illustrates an exemplary railing module with concealed anchor system in a cross-sectional view. 
         FIG. 3A  illustrates an exemplary embodiment of railing posts with cable flanges, according to some embodiments of the present disclosure. 
         FIG. 3B  illustrates an exemplary embodiment of railing posts with cable flanges, according to some embodiments of the present disclosure. 
         FIG. 4A  illustrates an exemplary embodiment of a standard post base shoe, according to some embodiments of the present disclosure. 
         FIG. 4B  illustrates an exemplary embodiment of a corner post base shoe, according to some embodiments of the present disclosure. 
         FIG. 5A  illustrates exemplary embodiments of standard retainer caps, according to some embodiments of the present disclosure. 
         FIG. 5B  illustrates exemplary embodiments of standard retainer caps, according to some embodiments of the present disclosure. 
         FIG. 6A  illustrates exemplary embodiments of corner retainer caps, according to some embodiments of the present disclosure. 
         FIG. 6B  illustrates exemplary embodiments of corner retainer caps, according to some embodiments of the present disclosure. 
         FIG. 7A  illustrates an exemplary embodiment of an adjustable flange, according to some embodiments of the present disclosure. 
         FIG. 7B  illustrates an exemplary embodiment of a railing system with adjustable flange. 
         FIG. 7C  illustrates an exemplary embodiment of a railing system with adjustable flange. 
         FIG. 8A  illustrates an exemplary embodiment of a sloped surface with angled railing system. 
         FIG. 8B  illustrates an alternate exemplary embodiment of a sloped surface with angled railing system. 
         FIG. 8C  illustrates an alternate exemplary embodiment of a sloped surface with angled railing system. 
         FIG. 9  illustrates an exemplary embodiment of a leveler, wherein the leveler may be used to install a railing system with concealed anchor system. 
         FIG. 10  illustrates an exemplary guardrail module, according to some embodiments of the present disclosure. 
         FIG. 11  illustrates an exemplary guardrail system, according to some embodiments of the present disclosure. 
         FIG. 12A  illustrates an exemplary embodiment of a guardrail module boot, according to some embodiments of the present disclosure. 
         FIG. 12B  illustrates an exemplary embodiment of a guardrail module boot, according to some embodiments of the present disclosure. 
         FIG. 12C  illustrates an exemplary embodiment of a guardrail module boot, according to some embodiments of the present disclosure. 
         FIG. 13  illustrates exemplary method steps for installing a railing module with concealed anchor system. 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure provides generally for a railing system. More specifically, the present disclosure relates to a durable and sleek railing system designed to limit deterioration of connection components and connection points, particularly damage that may be caused by exposure to weather elements, such as precipitation, humidity, wind, particulate, or other environmental conditions, as non-limiting examples. 
     In the following sections, detailed descriptions of examples and methods of the disclosure will be given. The description of both preferred and alternative examples, though thorough, are exemplary only, and it is understood to those skilled in the art that variations, modifications, and alterations may be apparent. It is therefore to be understood that the examples do not limit the broadness of the aspects of the underlying disclosure as defined by the claims. 
     Glossary 
     
         
         
           
             Railing Module: as used herein refers to a railing component within a railing system, wherein a railing system may comprise a series of railing modules. In some aspects, a railing module may comprise a single railing post. The series of railing modules may comprise a mix of standard railing posts and corner railing posts, wherein the series may form a railing border around a surface, such as a deck, porch, or patio. 
             Guardrail Module: as used herein refers to a guardrail component within a guardrail system, wherein a guardrail system may comprise a series of guardrail modules. 
             Concealed Anchor System: as used herein refers to an anchor system that may be used in conjunction with a railing module, wherein the concealed anchor system may allow for a discreet anchoring of the railing module to the flooring surface. 
           
         
       
    
     Referring now to  FIG. 1 , an exemplary railing module  100  with concealed anchor system is illustrated. In some aspects, a concealed anchor system may comprise a base  105  and a stud  120 , wherein the base  105  may be attached to a flooring surface or subsurface, such as wood decks or concrete decks, as non-limiting examples, and the stud  120  may extend through at least a portion of the deck. In some embodiments, a sleeve  115  may be set around the stud  120 , wherein a railing post  130  may be fitted over the stud  120 . In some implementations, leveling for the railing system may occur during the installation of the sleeve  115 , such as with the use of a three-point leveler, as described in  FIG. 9 . In some aspects, an adjustable pin (not shown) may tighten with a set screw to facilitate dropping into a threaded base. In some embodiments, a sleeve may have a telescoping feature. In some implementations, a sleeve may use a custom extrusion to facilitate a telescoping feature. 
     In some embodiments, the installation may depend on the type of flooring system. For example, where the flooring may comprise a concrete flooring, the base  105  may be attached directly to the top surface of the concrete or may be installed during the concrete pouring, wherein the base  105  may be located within the concrete flooring with the stud  120  extending from the concrete. In some embodiments, the stud  120  may be drilled directly into the flooring, such as concrete, wherein the stud  120  may be further stabilized with a setting material, such as an epoxy. In some aspects, the base  105  may comprise positional indicators  145 , such as markings or notches, which may assist in the installation process. For example, the positional indicators  145  may indicate the center of each side of the base  105 , which may allow for simplified or easier centering along with chalk alignment lines during installation. 
     In some embodiments, a counter force mechanism may be used to limit damage that may be caused by unsupported unilateral pressure. As an example, the flooring may comprise a floating wood deck, wherein the wood deck may comprise a sloped subflooring that allows for effective water drainage. The base  105  may be attached to the sloped subflooring with the stud  120  extending through the wood deck. The sleeve  115  may be set at the upper surface of the wood deck, and a counter-force mechanism may be installed under the wood deck to limit sagging. In some aspects, the counter-force mechanism may comprise a nut and washer or bracers between the subflooring and the lower surface of the wood deck. 
     In some aspects, a threaded rod  125  may extend from the stud  120  to a retainer cap  135 , which may allow a railing  140  to be secured to the railing module  100 . In some embodiments, a flange nut may be threaded onto the threaded rod  125  to the connection point with the stud  120 , wherein the flange nut may lock the threaded rod  125  in place, limiting the chance of loosening over time. In some implementations, a shoe  110  may be fitted at the base of the railing post  130 , wherein the shoe  110  may limit directional stress. In some aspects, the respective lengths of the threaded rod  125  and the stud  120  may vary depending on the particular application or flooring type. 
     In some aspects, not shown, a cable may be used instead of a threaded rod  125 , wherein the cable may be anchored to the stud  120  and the retainer cap  135 , wherein tightening the cable may create tension sufficient to limit shifting. In some embodiments, such as between the retainer cap  135  and the railing  140 , a layer of material may be added to create a seal that may further limit internal exposure to moisture. For example, a rubber layer may create a seal when compressed during the tensioning of the cable or the tightening of the threaded rod. 
     In some embodiments, one or more the railing post  130  and the railing  140  may be modular, wherein one or both the railing post  130  and the railing  140  may be interchangeable with other versions. For example, homeowners may prefer to change the aesthetic of their home periodically, and a modular embodiment may allow the homeowners to switch their current stainless steel railing with cables to a black railing with glass panels. A modular embodiment may allow for replacement of damaged portions of the railing system without requiring a complete dismantling of the railing system, which may cause damage to the flooring and may require a completely new installation. 
     For example, where the base  105  may be attached to a top surface with nominal slope, the length of the stud  120  may not be a significant factor in the leveling of the railing system and additional length may add stability. Where the base  105  may be attached to a sloped surface, such as on subflooring sloped to help with drainage, the effective length of the stud  120  may be limited to allow for the leveling of the railing system. 
     In some embodiments, a concealed anchor system may be customized for a variety of deck variations, such as an open deck or decking involving wood, composite, aluminum, or vinyl materials. In some implementations, a concealed anchor system may be optimized depending on decking material, such as wood-thermoplastic composite materials, polyethylene, polypropylene, wood fibers, recycled plastic, PVC, polystyrene, stainless steel, Trex, Ipe, Meranti, Redwood, or pressure-treated lumber, as non-limiting examples. In some aspects, a post may be optimized depending on the decking material. In some embodiments, installation of a concealed anchor system on concrete may occur by drilling a threaded stud into a deck without using a base. In some implementations, a rail may be grouted for use in a pool. 
     In some embodiments, a concealed anchor system may have a receiver piece that slides over using a threaded rod. In some implementations, a concealed anchor system may have decorative features to complement a user&#39;s preferences. In some aspects, a post design may be used to mount to a wall for shelving. For example, a wall mount version may comprise two concealed anchor systems attached perpendicular to a wall, and a shelf may comprise openings that may be fitted onto the sleeves of the concealed anchor systems. In some embodiments, the base may be attached to the exterior of the wall. In some aspects, the base may be attached to studs, such as during construction before the installation of drywall. In some aspects, the concealed anchor system may be integrated into furniture. For example, legs of a table or couch may be fitted over the sleeve of a concealed anchor system, wherein the base may be attached to the seat portion or tabletop. 
     In some aspects, the concealed anchor system may be used in architectural features where it may be desirable to limit damage to the flooring or necessary to periodically change, repair, or remove the feature fitted over the concealed anchor system. For example, the concealed anchor system may be used to secure base features in an aquarium wherein the anchor system may maintain the sealed integrity of the aquarium and limit corrosion to the features. As another illustrative example, the concealed anchor system may be used to secure sculptural works at a museum, such as exterior statues or installation pieces that may be periodically rotated out. 
     In some implementations, a concealed anchor system may include different sleeves or different bases to use depending on user need. For example, where the railing post may comprise a cylindrical body, a square-shaped sleeve may not offer the most secure fit. In some embodiments, the sleeve may comprise a textured exterior, which may cause friction with the railing post and limit rotation of the railing post around the sleeve. In some aspects, the railing post may comprise an internal structure that may be fittingly secured over the sleeve that may not match the exterior. For example, the railing post may by cylindrical on the outside and have a square-shape internally that may fit over a square-shaped sleeve, wherein the square fitting may limit rotation of the railing post. 
     Referring now to  FIG. 2 , a portion of an exemplary railing module  200  with concealed anchor system is illustrated in a cross-sectional view. In some aspects, the concealed anchor system may comprise a base  205 , which may be anchored below a finished flooring system  210 , such as on a wood deck or a tile deck. In some implementations, there may be subflooring that may be reinforced to limit sagging that may be caused by a stud  220  extending between the subflooring and flooring. In some embodiments, a sleeve  215  may be fitted around the stud  220 . In some implementations, a threaded rod  225  may be attached to the stud  220 . In some aspects, the threaded rod  225  may allow for a railing to be attached to the railing system without requiring piercing a railing post  230  or finished flooring system  210 . In some implementations, a base shoe  235  may be placed over the railing post  230  in contact with the finished flooring system  210 . 
     Referring now to  FIGS. 3A-3B , an exemplary embodiment of railing posts  300  with cable flanges  310  are illustrated. In some embodiments, a railing system may comprise a cable railing system, wherein the upper railing may comprise a rigid material and the secondary railings may comprise cables. In some aspects, a railing post  300  may comprise one or more cable flanges  310 , which may comprise a series of holes configured to accept the cables. 
     In some implementations, the series of holes may comprise the same or different shapes. For example, a larger hole may accept an end cap for the cable railing, whereas a smaller hole may allow for a cable pass-through. In some aspects, a corner railing may comprise two cable flanges  310  extending from perpendicular surfaces of the railing post, which may allow for a 90° turn in the railing system. In some embodiments, the angle between the cable flanges  310  may allow for a range of perimeter shapes. 
     In some aspects, the use of flanges eliminates the need for the cables to pass through the body of the railing post, which may expose portions of the railing post. The exposed portions may be susceptible to damage over time, which may weaken the components. For example, a drilled hole on the surface of the railing post may allow moisture to accumulate within the railing post, which may cause deterioration to the drilled hole, the interior of the railing post, the retainer cap, or other exposed components within the railing module. 
     In some embodiments, not shown, railing posts may comprise flanges that may accept other horizontal railing systems, such as rods, panels, or boards, as non-limiting examples. For example, the flanges may comprise a pocket configured to accept a panel that may extend to the next railing post. The panel may comprise one or more of a wood, plastic, glass, steel, or aluminum, as non-limiting examples. In some aspects, not shown, the railing system may comprise a series of vertical railings and the railing post may comprise flanges that may accept a base railing, wherein the panels, balusters, or rods may extend between the base railing and the upper railing. In some implementations, not shown, the railing post may comprise traditional railing designs utilizing the concealed anchor system as the means of attachment to a structure. 
     Referring now to  FIGS. 4A-4B , exemplary embodiments of post base shoes  400 ,  410  are illustrated. In some embodiments, a corner post base shoe  400  may be configured to reduce concurring perpendicular stress. In some aspects, a standard base post shoe  410  may be configured to limit directional stress. For example, a railing post may be leaned on or pulled directly or indirectly, such as by pulling or pushing on the railing attached to the railing posts. 
     In some embodiments, the post base shoes  400 ,  410  may comprise an opening  405 ,  415  that may fit over the sleeve and under the railing post. In some aspects, the base shoes  400 ,  410  may be fitted with concealed securing mechanisms, maintaining a sleek exposed upper surface. For example, the post base shoes  400 ,  410  may be attached to the flooring surface with an adhesive. As another example, where a metal base may be exposed, the post base shoes  400 ,  410  may be magnetically connected to the base. In some aspects, the post base shoes  400 ,  410  may be allowed to float without being attached to a surface. In some implementations, a base shoe  400 ,  410  may distribute the point load of a railing once a nut is tightened on the retainer, which may limit compression of the railing post into the finished deck while adding rigidity to the rail post installation. 
     Referring now to  FIGS. 5A-5B , exemplary embodiments of standard retainer caps  500  are illustrated. In some aspects, a standard retainer cap  500  may be secured to a concealed anchor system through a threaded rod extending from a stud. In some aspects, the standard retainer cap  500  may comprise a fitted portion  515  with a center hole  510  and a retainer base  530 . In some embodiments, the fitted portion  515  may fit within the body of the railing post, wherein the center hole  510  may align with the threaded rod. The threaded rod may extend up to or through the center hole  510 , which may allow for a nut to secure the standard retainer cap  500  to the railing module. In some aspects, railing may be secured to the retainer base  530 , wherein the retainer base  530  may be parallel to the railing. 
     Referring now to  FIGS. 6A-6B , exemplary embodiments of corner retainer caps  600  are illustrated. In some embodiments, a corner retainer cap  600  may be secured to a concealed anchor system through a threaded rod extending from a stud. A corner retainer cap  600  may be configured to secure a corner railing piece. In some aspects, a corner railing piece may comprise an angled portion. 
     In some aspects, the corner retainer cap  600  may comprise a fitted portion  610  with a center hole  615  and a retainer base  630 . In some embodiments, the fitted portion  610  may fit within the body of the railing post, wherein the center hole  615  may align with the threaded rod. The threaded rod may extend up to or through the center hole  615 , which may allow for a nut to secure the corner retainer cap  600  to the railing module. In some aspects, railing may be secured to the retainer base  630 , wherein the retainer base  630  may be parallel to the railing. 
     Referring now to  FIGS. 7A-7C , exemplary embodiments of a railing system  700  with adjustable flange  715  is illustrated. In some aspects, an angled railing system  700  may be installed for sloped surfaces, such as stairs or ramps. In some embodiments, a retainer cap  745  may comprise an adjustable flange  715  that may pivot around a threaded rod  720 , wherein the position and angle may be adjusted using a nut  725  configured in the barrel portion  710  of the adjustable flange  715  to limit horizontal movement. In some aspects, a railing post  740  may be precut to the angle of the sloped surface, wherein the angle of installation of a railing  730  may be predefined. In some embodiments, an adjustable flange  715  and retainer cap  745  with adjustable flange  715  may pivot with the angle of the stairs or ramp for which the railings are to be installed. In some implementations, the railing post  740  may be cut to a desired angle and the angled railing system  700  may utilize the anchoring system described above. 
     Referring now to  FIGS. 8A-8C , exemplary embodiments of sloped surfaces  805 ,  835 ,  865  with angled railing systems  800 ,  830 ,  860  are illustrated. In some aspects, an adjustable flange, such as illustrated in  FIGS. 7A-7C , may allow for the custom installation of angled railing systems  800 ,  830 ,  860 . Stairs or ramps may be installed at a range of angles for a variety of reasons, including aesthetic preferences, spatial limitations, or accessibility requirements, as non-limiting examples. 
     In some aspects, standard stairs  805  with standard angled railing system  800  may have a traditional aesthetic with sufficient space to extend the steps. In some embodiments, steep stairs  835  with steep angled railing system  830  may have a more modern aesthetic and may be appropriate where space is limited. In some implementations, a ramp  865  with moderate angled railing system  860  may allow for increased accessibility. 
     Referring now to  FIG. 9 , an exemplary embodiment of a leveler  900  is illustrated, wherein the leveler  900  may be used to install a railing system with concealed anchor system, such as illustrated in  FIGS. 1 and 2 . In some implementations, a leveler  900  may be used to install the sleeve of a concealed anchor system. A leveler  900  may be useful in a range of applications, in particular where one or both the base or the stud may be installed on a sloped surface. The leveler  900  may allow for a level installation of railing posts that are perpendicular to the ground, regardless of the slope of the flooring surface. 
     In some aspects, the leveler  900  may comprise adjustable legs  920  that may support the leveler  900 , wherein each of the adjustable legs  920  may be independently adjusted. In some implementations, the adjustable legs  920  may comprise feet (not shown) that may add stability and limit damage to the flooring. For example, the feet may comprise a rubber or foam that may create a soft contact point with the flooring. As another example the feet may comprise a round base that may disperse any pressure to limit indentations that may be caused during the leveling process. In some embodiments, the leveler  900  may comprise a primary alignment mechanism  910 , which may hold the sleeve of a railing module. The primary alignment mechanism  910  may comprise a sleeve, clamps, magnets, or other securing mechanisms, as non-limiting examples. In some embodiments, the primary alignment mechanism  910  may comprise a quick-release mechanism, such as a spring-loaded release mechanism, which may allow for easy alignment and installation. 
     In some aspects, the leveler  900  may comprise a secondary alignment mechanism  930 , which may further secure the leveler  900  in alignment while the sleeve of a railing module is set to the stud. For example, the secondary alignment mechanism  930  may comprise a recess or flange with a hole that may accept a threaded rod connected to the stud or the stud itself. In some embodiments, the leveler  900  may comprise a bubble level  940  at the top of a stem  950 . In some aspects, the length of the stem  950  may allow for a user to lean over to look down over the bubble level  940 . 
     Referring now to  FIG. 10 , an exemplary guardrail module  1000  is illustrated. During construction, a common safety requirement is a temporary guardrail along the perimeter of walking work surfaces, which may reduce the chance of an individual falling off the edge of a walkway. More specifically, the guardrail must typically have an upper rail, intermediate rail, and posts. Common guardrail solutions include installing temporary posts that extend from floor to ceiling that may be clamped to a slab or mechanically fastened to a structure. In some versions, the temporary posts risk damaging one or both the floor or ceiling and impede efficient installation of deck finishes. 
     Accordingly,  FIGS. 10-12C  describe an improved guardrail system that may utilize permanent fixtures within its construction. In some aspects, the guardrail module  1000  may be fitted to a foundation using a concealed anchor system, which may comprise a base (not shown) and stud  1040 . In some aspects, the guardrail module  1000  may comprise an upper support brace  1010  and a lower support brace  1015  extending from a post  1005 . The post  1005  may extend from a boot  1020 , wherein the boot  1020  may comprise a base support brace  1025  and an aperture to fit over the stud  1040  of the concealed anchor system. In some aspects, a bolt or washer  1045  may be used to secure the boot  1020  to the stud  1040  through the aperture. 
     Referring now to  FIG. 11 , an exemplary guardrail system  1100  is illustrated. In some aspects, a guardrail system  1100  may comprise a plurality of guardrail modules  1110 ,  1130 . In some implementations, the guardrail modules  1110 ,  1130  may support an upper board  1150 , a center board  1155 , and a base board  1160 . In some aspects, one or both the upper board  1150  and the center board  1155  may extend through support braces  1115 ,  1135  on the guardrail modules  1110 ,  1130 . The base board  1160  may be secured to the boot  1120 ,  1140  of each guardrail module  1110 ,  1130 , which may increase the stability of the guardrail system  1100 . 
     Referring now to  FIGS. 12A-12C , an exemplary embodiment of a guardrail module boot  1200  is illustrated, wherein the guardrail module boot  1200  may be secured in part by a concealed anchor system, which may comprise a stud  1205  and base  1210 . In some aspects, a concealed anchor system may be installed for future use in a railing system in a building, such as integrated into a railing system as described in  FIGS. 1-8C . During construction, the concealed anchor system may be used in conjunction with a guardrail system. 
     In some aspects, the guardrail module boot  1200  may comprise a guardrail post sleeve  1230  configured to accept a guardrail post. In some implementations, the guardrail module boot  1200  may comprise a lower support brace  1220  configured to accept an end of a base board, wherein a subsequent guardrail module boot may comprise another lower support brace to accept the other end of the base board. In some embodiments, the guardrail module boot  1200  may comprise an aperture  1225  and stability panels  1240  with drill holes  1215 . The aperture  1225  may be configured to receive a stud  1205  from a concealed anchor system. 
     In some aspects, the stability panels  1240  may be drilled into a surface through the drill holes  1245 , such as where flooring finishes have not been installed or partially installed or where damage to the surface may be easily repaired. In some embodiments, it may not be necessary or desirable to drill into the floor. For example, where the flooring may be partially installed, damage to the surface may not be easily repaired, so drilling into the flooring may cause unwanted damage. In some aspects, the stability panels  1240  may comprise non-skid material underneath to limit unintended slipping, wherein the non-skid material may comprise a material that may not damage the flooring, such as a rubber or silicone. 
     In some implementations, the guardrail post sleeve  1230  and guardrail module boot  1200  may be designed to allow for easy removal and re-installation of the upper portion of a guardrail post without the need to remove or unsecure the base. In some aspects, a retainer pin may be placed in the hole of the receiver with an aligned hole in the guardrail post. In some embodiments, this feature may provide better flexibility to a contractor and provide less wear on a deck. 
     Referring now to  FIG. 13 , exemplary method steps for installing a railing module with concealed anchor system are illustrated. At  1305 , the base and stud may be installed. At  1310 , a sleeve may be placed over the stud. In some aspects, at  1315 , the sleeve may be leveled. At  1320 , setting material may be added between the sleeve and the stud, and at  1325 , the setting material may be allowed to set. For example, the setting material may comprise an epoxy, a concrete, a glue, or other setting materials. In some aspects, at  1330 , the leveler may be removed. 
     At  1335 , a threaded rod may be connected to the stud. At  1340 , a railing post may be fitted over the sleeve. At  1345 , a retainer cap may be placed in the railing post and threaded rod, and at  1350 , the retainer cap may be secured, such as through use of a bolt or washer threaded over the threaded rod. At  1355 , a railing may be attached to the retainer cap. 
     CONCLUSION 
     A number of embodiments of the present disclosure have been described. While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any disclosures or of what may be claimed, but rather as descriptions of features specific to particular embodiments of the present disclosure. 
     Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in combination in multiple embodiments separately or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a sub-combination or variation of a sub-combination. 
     Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. 
     Moreover, the separation of various system components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. 
     Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order show, or sequential order, to achieve desirable results. In certain implementations, multitasking and parallel processing may be advantageous. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the claimed disclosure.