STOCK FIT

Deck board — purchased board length scenarios.

How does changing purchased board length affect deck board when the other inputs stay fixed?

What this decision changes

Full required pieces must fit usable stock. Aggregate area or length alone cannot prove a feasible cut or roll allocation. Method basis: This straight layout rounds each row to whole purchased lengths before adding allowance. It does not optimise offcut reuse or specify joins.

The focus is purchased board length. All other shared inputs remain fixed for each evaluated range.

Boards = rows across width × pieces along lengthDeck Board Calculator

Evaluate your supplied alternatives

Start with your measured plan and selected product data. The initial values and range are illustrative. Each scenario changes only purchased board length; the other entered values stay fixed.

Display units

Measured plan and product inputs

Length

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Actual board width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Purchased board length

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Specified gap

Waste allowance

Shortcuts only; choose your own allowance above.

Where to get this value

Enter your own allowance. Presets are input shortcuts, not a construction recommendation.

Supplied comparison range for purchased board length

Lower supplied comparison value

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Upper supplied comparison value

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Nine evenly spaced values are evaluated. Whole counts are rounded to distinct integer scenarios. Values between the listed samples are not calculated.

9 evaluated scenarios

Baseline: Boards to purchase — 44 boards. Rejected combinations remain visible below.

Quantity to plot

Each bar is one actual calculated boards to purchase. Horizontal values: purchased board length in m.

Purchased board length	Boards to purchase	Change from baseline	Use this scenario
1.2 m	88 boards	44 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 4 Boards before allowance 80
1.45 m	66 boards	22 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 3 Boards before allowance 60
1.7 m	66 boards	22 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 3 Boards before allowance 60
1.95 m	66 boards	22 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 3 Boards before allowance 60
2.2 m	44 boards	0 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 2 Boards before allowance 40
2.45 m	44 boards	0 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 2 Boards before allowance 40
2.7 m	44 boards	0 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 2 Boards before allowance 40
2.95 m	44 boards	0 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 2 Boards before allowance 40
3.2 m	44 boards	0 boards	Open in calculator Exact quantity breakdown Deck area 8 m² Board rows 20 Pieces per row 2 Boards before allowance 40

Read the evaluated results

Look for jumps in purchased stock and rejected fits. The rows show actual evaluated allocations, not an assumption that every intermediate size will behave identically.

Replace every illustrative baseline measurement and selected product value with the inputs for your actual task.
Enter a comparison range on the focused input's stated unit and quantity basis.
Review rejected combinations and use the exact detail lines to distinguish measured demand from whole purchases.
Open an evaluated scenario in the full calculator to save its original inputs and quantity breakdown to a browser material project.

Keep the comparison within scope

Permitted orientation, complete-run requirements and reserved cut losses remain supplied inputs; sampled layouts do not promise a globally optimal cut plan.

Only quantities from supplied dimensions and specifications are calculated.

No material-property reference values are bundled; obtain product values from the selected supplier's data sheet.

Only the listed samples are evaluated. Intermediate values, alternate constraints and global cutting optimality are not inferred from the graph.

Continue with this quantity method

Deck Board Calculator

Other independent input decisions

Prepare the actual material data

Read the measurement and purchase guides

Use installed intersections rather than spare purchased boards for fastener takeoff

Quantity method and illustrative scenarios checked 6 October 2026. Methods and scope.