fastener grid v1
Deck Screw Calculator
Estimate screws from board rows, support lines, and explicit screws per crossing.
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Deck Calculators
Estimate deck joist layout, footing grid, and screw quantities from project-approved dimensions and spacing.
Choose a task
Calculators in this workflow
linear equal spacing v1
Deck Joist Calculator
Plan joist count, equalized spacing, and linear material.
Open calculatorlinear equal spacing v1
Deck Footing Calculator
Count a rectangular footing grid from approved project spacing.
Open calculatorEstimate deck joist layout, footing grid, and screw quantities from project-approved dimensions and spacing.
Recommended workflow
Measure once, estimate in project order
- Record the deck length and width and identify the direction of boards and joists.
- Use spacing and footing locations from an approved design rather than asking an estimator to design the structure.
- Estimate fasteners after the board and support layout is settled.
Planning method
Turn measurements into purchase decisions
These tools estimate quantities from supplied design inputs. They do not select spans, footing dimensions, connections, loads, species, or grades.
- Keep assumptions with the estimate.
- Separate required material from rounded packages.
- Recheck current product instructions and local requirements.
Measure before estimating
How to Estimate Deck Materials
Organize deck dimensions and approved structural decisions before estimating joists, footings, boards, and fasteners.
Read the measurement guide