Exterior Wall Thickness With Siding

Exterior wall thickness depends on siding material.

Exterior wall thickness with siding.

The international residential code specifies 3 8 inch plywood for sheathing walls with a standard stud spacing of 16 inches if the siding is nailed to the studs through the sheathing. So you really need to think about wall thickness in a tiny house. Vinyl siding comes in several grades and thicknesses. In general when using standard 2x4 inch wood external walls will be a little over 5 thick or more if you use fairly bulky exterior siding and interior walls will have a thickness of around 4 due to the drywall on both sides.

Exterior wall sheathing is either structural or non structural. The nominal dimension of 2 by 4 inches refers to the size of green rough sawn studs. Structural exterior wall sheathing ties framing studs together making the walls resistant to twisting and bending. According to the standards of the american society for testing and materials vinyl siding should not be thinner than 0 035.

The recommended maximum is 12 inches. With drywall on one side and 1 4 3 4 exterior sheathing on the other side an exterior wall will vary in thickness. Drying and planing reduce the finished size to the current standard of 1 5 by 3 5 inches. Exterior wall sheathing strengthens the wall system provides a nailing base for the siding and gives a layer of protection against outside elements.

The costs of installing gypsum sheathing is around 2 a square foot installed which makes a 500 sq ft. How to install gypsum exterior wall sheathing. Exterior wall thickness varies depending on the exterior finish siding and brick facing. This includes both labor at roughly 700 and materials at roughly 300.

Free quotes from siding contractors. Interior walls in older construction may differ. Installation cost roughly 1 000 when complete. The thickness of interior walls is dictated by stud width and wall covering.