NO-STUD REQUIRED: Wall studs not required for installation of TV Mount. Save time by not having to look for studs in your wall. Can be mounted on sheetrock with nails only, or on wood, metal studs, brick, and concrete walls. (Drywall thickness must be greater than 0.4.) TV COMPATIBILITY: TV Bracket fits 20 to 57 screens with VESA 100x100 mm to 400x400mm mounting holes. VESA mounting patterns are the distances (in mm) between the four screw holes on the back of the TV, can hold up to 88 pounds in dry wall and 110 pounds in wood or concrete block.