Material & Cut Calculator

Plan straight deck board quantities with actual widths, gaps, orientation and stock lengths. Add editable costs, print a specification and prepare a sourcing request without an account.

Deck board quantity and layout

Deck length (ft)Deck width (ft)Actual board face width (in)Measure the product, not its nominal size.Actual board thickness (in) — optionalRequired only for physical BF volume or BF pricing; confirm supplier tally separately.Side-to-side gap (in)Default is an example, not an installation instruction; follow product and moisture requirements.Stock board lengthBoards run parallel toAdditional purchase allowance (%)Added once after full-stock rounding. Not a clear-part yield factor.Planned joist spacing (in) — optionalExample only; verify permitted span and support layout independently.Face screws per board/support — optionalFor face-screw planning only, not hidden clips or approved fastening schedules.

Calculate after changing inputs to update the specification.

Review the fastener calculator, whole-project cost tool and deck spec builder separately; confirm product-specific requirements.

Material specification & editable costs

No preset market price. Enter your own quotation or planning allowance; a single species, grade and rate applies to this list. Leave unknown costs blank.

Species / manufacturer and productGrade and sawing patternMillingMoisture condition / targetRequired finished dimensions / profileCalculated stock dimensions do not guarantee finished dimensions.Substitution instructionsSite access and unloading requirementsDelivery ZIP (optional while planning)Required date (optional)Length selection / other requirements

Price and delivered material cost

Price unitMaterial price (USD per selected unit)Price source / quote referencePrice dateMilling charge (USD)Leave blank if unknown; enter 0 only if included or not applicable.Freight charge (USD)Leave blank if unknown; enter 0 only if included or not applicable.Unloading / accessorials (USD)Leave blank if unknown; enter 0 only if included or not applicable.Applicable tax amount (USD)Leave blank if unknown; enter 0 only if included or not applicable.Usable volume recovery (%) — optionalFor cost per usable BF only. Does not add stock or duplicate the waste allowance; include milling losses in your scenario.

A supplier reference is not verification of an offer. Square-foot pricing uses purchased board face area, not deck footprint or gaps. Include only additional charges, not costs already included in your price.

Complete valid calculator inputs above before printing or preparing a request.

No account required. Review and edit the specification before submitting. Submission is for sourcing review, not confirmation of availability, a quote or an order.

When to Use This Calculator

This quick estimator is perfect for getting a ballpark board count before you dive into detailed planning. For a complete material takeoff including framing, hardware, stairs, and costs, use the Advanced Deck Estimator.

Fixed Length vs. Random Length Lumber

Fixed lengths (8', 10', 12', 16', etc.) — easier to plan, less on-site cutting, but may generate more waste if your deck dimensions don't align with standard lengths
Random lengths — common with exotic hardwoods like Ipe and cumaru; boards arrive in varying lengths (typically 6-20 ft), which can be more economical but requires more planning

Common Board Sizes for Decking

Nominal Size	Actual Width	Best For
5/4 × 6	5.5"	Standard residential decking
2 × 6	5.5"	Heavy-duty or commercial decking
1 × 6	5.5"	Lightweight decking, tropical hardwoods
2 × 4 / 1 × 4	3.5"	Narrow plank style, railings

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