Drywall Screw Fastener Takeoff
Drywall screws from the framing spacing and the field pattern.
Example
You enter
- Sheet count 100
- Sheet length (ft) 8
- Sheet width (ft) 4
- Framing spacing (in) 16
- Field screw spacing (in) 12
You get
- Screws per sheet 36
- Total screws 3,600
Checked against published worked examples from: USG Corporation.
Details, formula, and sources
Scopestuds per sheet = floor(width x 12 / stud spacing) + 1; screws per stud = floor(length x 12 / field spacing) + 1; total = sheets x studs per sheet x screws per stud. 100 sheets on 16 in framing at a 12 in field pattern is 36 screws a sheet (3,600 screws); a tighter 8 in pattern on a fire-rated assembly runs it to 5,200. Counts fasteners only -- the sheets and mud are taken off separately.
Formula or tablestuds_per_sheet = floor(sheet_width_ft x 12 / stud_spacing_in) + 1; screws_per_stud = floor(sheet_length_ft x 12 / field_screw_spacing_in) + 1; total_screws = sheets x studs_per_sheet x screws_per_stud.
Source and editionDrywall fastener identity by name (studs a sheet crosses x screws per stud, over the sheet count); first-principles count arithmetic.
Free accessThe fastener count is public first-principles; the field spacing comes from the code and the assembly.
What governsEstimate. AHJ and licensed professional govern.
API field namessheets, sheet_length_ft, sheet_width_ft, stud_spacing_in, field_screw_spacing_in, screws_per_sheet, total_screws
- Field spacing 16 in on walls and 12 in on ceilings at 16 in framing (GA-216), tighter for fire-rated assemblies (entered); the assembly governsGA-216
- Scope fasteners only; sheets and mud are in the drywall tiletakeoff convention