Practical guide
How to documenting a drywall fastening schedule
Measure and document the custom inputs for the Drywall Screw and Box Quantity Calculator.
Prepare the job record before opening the Drywall Screw and Box Quantity Calculator.
Record these inputs
- Sheet count: record the count or value and note its source.
- Approved screws per sheet: record the count or value and note its source.
- Applied layers: record the count or value and note its source.
- Fastener allowance: record in % and note its source.
- Screws per box: record the count or value and note its source.
Measurement workflow
Sketch each surface, opening, seam, corner or wall run. Use net dimensions only after showing the subtraction. Keep layers, coats and separately specified materials as separate scenarios.
Product and project controls
Read the current product label, technical sheet, approved assembly or project documents. Copy the applicable value into the calculator and retain the citation with the estimate. Do not substitute an unlabeled internet average.
Review
Check whole-package rounding, available sizes and field conditions. Quantity output does not approve structure, fire resistance, acoustics, fastening, finish or code compliance.
References and further reading
These sources define or explain the calculation. Source editions and model limits are part of the result—not decorative citations.
- NIST Guide to the SI, Chapter 8, National Institute of Standards and Technology; accessed 2026-08-22. COMMON-NIST-SI