Board rows, joist intersections, boxes and cost

Deck Hidden Fastener Calculator

Estimate hidden deck clips, starter and finish fasteners, full boxes and material cost from deck dimensions, board width, gap and joist spacing.

Imperial and metric Rounded purchase quantities Cost estimate

Default project preview

2 boxes

Board rows

34

Joist lines

16

Field clips

528

Starter and finish fasteners

32

Calculator

Build the material order

Your order will appear here

Enter the project details and calculate a rounded material estimate.

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Methodology

Transparent calculation

BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.

Board rows derive from deck width, board face width and gap. Field clips equal joints between board rows × joist lines; edge fasteners and waste are then added.

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FAQ

Deck Hidden Fastener Calculator questions

Are butt-joint clips included?+

The grid estimate may not include special double clips or blocking required at butt joints.

Why include starter and finish fasteners?+

The first and last board edges commonly need a separate fastener method because a shared clip cannot be installed outside the deck.

Can hidden fasteners be used with every board?+

No. Confirm the board profile, material and installation temperature are compatible with the selected system.