Estimate deck-board rows, linear footage, and a whole-board planning quantity from the direction and spacing.
Use this planner before you turn deck dimensions into a board order. Choose the board direction, make the board width and gap explicit, and keep the whole-board count separate from the linear footage.
Count rows from the coverage width using board width plus the gap. Multiply rows by the board run length, apply the allowance, and divide by the chosen stock board length.
For a 20 × 15 ft deck with boards running along the length, rows are counted across the 15 ft dimension. Add the selected allowance, then compare the result with a stock board length.
Treat the whole-board count as a starting point. Lay out joints and cuts before buying. Longer boards can reduce joints but may be harder to handle and can change waste.
Board width, actual gap, orientation, stock lengths, picture framing, borders, angles, stairs, defects, and local lumber availability all affect the final order.
The estimate does not create a cut list or account for picture framing, borders, angles, stair treads, joist layout, defects, or labor.
Direction changes both the number of rows and the length of each row. Choose the direction you plan to use before reviewing the order.
No. It gives linear footage and a starting whole-board count. A board-by-board layout is still needed for joints and cuts.
Use the actual coverage width of the board, and use the gap recommended for the material or plan you are following.
Short, practical help for the next step in this project.