metal profile sheathed with drywall on both sides close-up on a dark background. sectional frame interior partition

drywall cladding ceiling frame partition wall cradle characteristics universal sheet green blue closeup cardboard plaster dough filler humidity gypsum dihydrate lining moisture resistant comfortable practical inexpensive metal profile construction fastening assembly light layout work selftapping screws building materials stiffeners monolithic empty reinforced sheathed both sides close-up dark background sectional interior background partition