Sheet layout calculator
Estimate full-sheet count and coverage for a rectangular surface.
What you enter
- Calculation mode
- Surface width (in)
- Surface length (in)
- Sheet width (in)
- Sheet length (in)
- Working roof pitch rise (in / 12)
- Other roof pitch rise (in / 12)
- Measure from
- Measured length (in)
Main results
- Full sheets
- Coverage (sq ft)
- Sheet area to buy (sq ft)
- Waste (sq ft)
- Sheet layout (columns and rows)
What it follows
Plain arithmetic on the sizes you type; no building-code table is looked up. A second mode works out the cut of one sheet from two roof pitches.
Every result is marked REVIEW REQUIRED. Illustrative project-planning values only; jurisdiction, species, grade, loads, wet service and current adopted tables require review. Do not use a result directly for permit, purchase, or field use.
Related calculators
The calculator opens inside the designer, after you sign in.
Accounts are issued by the DeckAndShed team. There is no self-service sign-up.