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Deck Picture Frame Cut List Calculator
A picture-frame deck uses border boards around a field of boards, so the field dimensions shrink by the border width and required gaps. This calculator separates perimeter stock from field stock and adds an offcut allowance before rounding to purchasable board lengths. It does not design framing, blocking, fastening, expansion, or code compliance.
Planning estimate only. Check measurements and real-world constraints before buying materials or making a commitment.
Calculate your scenario
Change any input. Results update immediately.
Your results
Estimated stock boards
36
Total linear demand divided by stock length.
Field board rows
24
Across the reduced field width.
Linear decking with allowance
574.2 ft
Border plus field stock and offcut allowance.
How the calculation works
The calculator applies this relationship to the inputs above. Keep every measurement in the unit shown.
Worked example
Use this example to check the calculator by hand before relying on a result.
Assumptions behind the result
- • Deck is rectangular.
- • One border-board width is used on each side.
- • Field boards run parallel to deck length.
- • Stock can be optimized across cuts.
- • Framing and manufacturer installation rules are handled separately.
Mistakes that change the answer
- • Counting field boards across the full deck width.
- • Ignoring gaps beside the picture frame.
- • Assuming every offcut can be reused.