Framing Lumber Takeoff
Count studs at 16 in on-center, top and bottom plates, drywall sheets, screws, and exterior sheathing for a wall layout, from the linear feet you are framing.
Corners use a 3-stud bundle so the drywall has something to land on, and every opening needs two jack studs plus a header. Bearing walls add headers over each opening too.
How the math works
- Studs: linear feet × 12 ÷ spacing, rounded up, plus one per wall run. Add two studs per corner (a three-stud corner bundle) and two per opening for jack studs.
- Plates: a bottom plate plus a double top plate = 3 × wall length in feet. Corners need a splice in each plate course, so add a piece per corner.
- Drywall: wall area = linear feet × wall height, ×1.10 for cuts, ÷32 sq ft per 4x8 sheet.
- Screws: drywall is fastened about every 7 in on edges and 12 in in the field, which lands near 25 screws per sheet; a 1,000-count box covers about 35 sheets.
- Sheathing: exterior walls only, 7/16 CDX at 32 sq ft per sheet with 10% waste. Board feet for reference: a 2x4 runs 0.67 board feet per linear foot.
How many studs do I need for a 30-foot wall?
About 23 studs at 16 in on center (30 x 12 / 16 = 22.5, rounded up) plus one per wall run, then two per corner and two per door or window in that wall. A 30 ft wall with two corners and two windows takes 31 studs.
Can I frame at 24 inches on center?
Yes for non-bearing walls and for many bearing walls one story, and 24 in uses about a third fewer studs. Check the span tables for your joist and rafter sizes first, and use 2x6 at 24 in for exterior bearing walls in most climates.
How many sheets of drywall for a 1,200 sq ft house?
Wall area is roughly 1.8 to 2.2 times the floor area for a single story, so 2,200 to 2,600 sq ft of wall: 75 to 90 sheets of 4x8 with waste. Ceilings add 1,200 sq ft more, about 42 sheets.