Deck Board Layout Calculator
Estimate board rows, linear footage and whole stock boards from deck dimensions.
What would you like to do next?
Estimate decking from actual width and gap
Enter deck dimensions, actual face width of one board, the planned gap, stock length and a waste allowance. The calculator finds the number of rows needed across the deck, reports the resulting covered width, totals linear footage and divides the adjusted quantity by stock length. It is useful for comparing board widths before drafting a cutting layout.
Develop the framing and seam plan separately
A linear-foot estimate assumes offcuts can be reused and does not decide board direction, joist spacing, blocking, picture-frame borders, staggered seams, overhang, fastening or expansion gaps. Confirm structural design, product instructions, permits and local code before ordering material or building.
Frequently asked questions
Why use actual board width?
Nominal lumber size can differ from the face width that covers the deck.
Does the count include waste?
Yes. Waste is added before total linear footage is divided by stock length.
Are joists included?
No. Framing and support require a separate structural plan.