Area-only estimates can miss whole-row rounding, seams, borders, angled cuts, and stock-length constraints. Draw a row-by-row layout for the final order.
01 / Formula
How this is calculated
Total linear feet = sum of each board row’s run length; purchase pieces = cut-plan total rounded to stock lengths02 / Assumptions
What the estimate assumes
- ✓Actual board coverage includes the installed gap.
- ✓Each deck section is calculated in its own board direction.
- ✓Reusable offcuts are credited only in a real cut plan.
03 / Worked example
See the math in context
Twenty-six rows across a rectangular 16-ft run equal 416 linear ft before borders, stairs, waste, or stock-length optimization.
04 / Guidance
Why area is only a cross-check
Square footage divided by board face width approximates linear footage, but it does not determine stock-piece count or place joints on framing.
05 / Guidance
Make a cut schedule
List every row, seam, border, stair tread, fascia piece, and available stock length. Confirm minimum bearing, joint staggering, overhang, and fastening with the product instructions.
Questions
Frequently asked
Are the calculator defaults building-code requirements?+
No. They are editable planning inputs. Verify current local code, approved plans, span tables, product evaluation reports, and manufacturer instructions before construction.
Does the estimate include the complete deck structure?+
Only if every component is explicitly listed. Footings, posts, beams, ledgers, flashing, lateral connections, guards, stairs, hardware, fascia, permits, delivery, and waste often require separate takeoffs.
How should I measure a non-rectangular deck?+
Divide the surface into rectangles and other measurable shapes, calculate each separately, then account for board direction, seams, breaker boards, borders, stairs, and reusable offcuts.
Sources