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Deck Board Calculator
Enter the deck footprint and board width. We size the decking, framing, and fasteners so you can price the lumber run before you start.
Your numbers
Decking needed
437 linear ft
- Deck area
- 192 sq ft
- Board rows
- 26 rows
- Decking
- 437 linear ft5% waste included
- Joists
- 13 pcs @ 12 ft16 in on center
- Deck screws / clips
- 744 fasteners
- Railing
- 40 linear ft
- Footings
- 4 posts
- Estimated material cost
- $2,076 – $4,180decking, framing, railing & footings
- Waste & gas charge (10%)
- $208 – $418material overage, cuts & fuel
- Total with waste & gas
- $2,284 – $4,598
- Framing spans, ledger attachment, and footing depth are code items — Knox County decks typically need a permit and inspection.
- A 10% waste & gas allowance is added to every estimate to cover material overage, cuts, and fuel to and from the job site.
Quantities and cost ranges are planning ballparks for materials only — labor is quoted separately. A 10% waste & gas allowance is already included in the total. Verify measurements on site.
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