Method of assembling a structure in aircraft or spacecraft production, comprising: providing at least two components (101, 103) to be joined to each other at a joint in order to form a structural assembly (6, 7), each of the components (101, 103) comprising a joining region (131, 133); applying sealant to at least one of the components (101, 103) in the joining region (131, 133) thereof; forming an arrangement by positioning the components (101, 103) relative to each other, whereby an uncured layer of the sealant is formed between associated joining regions (131, 133); clamping the associated joining regions (131, 133) against each other to achieve a clamped state using at least one clamping device (155a-155g) and maintaining the clamped state of the associated joining regions (131, 133) at least until the layer of sealant therebetween and contacting the associated joining regions (131, 133) has cured to a pre-defined degree, the clamping device (155a-155e) being installable on and transportable along with the arrangement; and after the layer of sealant has cured at least to the pre-defined degree, performing drilling at at least a plurality (205; 205, 206) of fastening positions (105; 105, 106) within the joining regions (131, 133) in order to obtain a hole (135; 135, 136) of final dimension at each of the plurality of fastening positions (105; 105, 106), and performing installation of a final fastener (145; 145, 146) at each of the fastening positions (105; 105, 106), characterised in that the moment at which the sealant has cured to a pre-defined degree corresponds to a curing degree in which the sealant does not flow anymore and without external mechanical effect the joining regions (131, 133) with the sealant in the pre-defined degree of curing inbetween remain unchanged in terms of their spatial arrangement relative to each other. providing at least two components (101, 103) to be joined to each other at a joint in order to form a structural assembly (6, 7), each of the components (101, 103) comprising a joining region (131, 133); applying sealant to at least one of the components (101, 103) in the joining region (131, 133) thereof; forming an arrangement by positioning the components (101, 103) relative to each other, whereby an uncured layer of the sealant is formed between associated joining regions (131, 133); clamping the associated joining regions (131, 133) against each other to achieve a clamped state using at least one clamping device (155a-155g) and maintaining the clamped state of the associated joining regions (131, 133) at least until the layer of sealant therebetween and contacting the associated joining regions (131, 133) has cured to a pre-defined degree, the clamping device (155a-155e) being installable on and transportable along with the arrangement; and after the layer of sealant has cured at least to the pre-defined degree, performing drilling at at least a plurality (205; 205, 206) of fastening positions (105; 105, 106) within the joining regions (131, 133) in order to obtain a hole (135; 135, 136) of final dimension at each of the plurality of fastening positions (105; 105, 106), and performing installation of a final fastener (145; 145, 146) at each of the fastening positions (105; 105, 106), characterised in that the moment at which the sealant has cured to a pre-defined degree corresponds to a curing degree in which the sealant does not flow anymore and without external mechanical effect the joining regions (131, 133) with the sealant in the pre-defined degree of curing inbetween remain unchanged in terms of their spatial arrangement relative to each other.