How many deck boards do you need?

Estimate boards, fasteners, waste, and decking cost wood, composite, or plastic flooring.

Decking Calculator — Homes Remodeler

Inputs

Results update as you type.

Units
Size of your deck
ft²
Deck area: —
Decking boards
≈ 6 in
≈ 1/8 in (optional)
Fasteners
Rule of thumb: 3.5 fasteners per ft².
$
Cost

Deck Planning Ideas

Smart remodeling ideas to transform your outdoor living space.

What you get

  • Deck length × width or square footage
  • Board width presets and length
  • Boards with about 10% waste
  • Screws, nails, or hidden clips
  • Board and fastener cost total

Helpful extras

  • Feet, inches, meters, or centimeters
  • Board gap and lay direction
  • Pack count and cost per square foot
  • Live layout preview and shareable link

How we calculate

  • deck = L × W
  • board = ℓ × w
  • boards = ⌈deck/board × 1.1⌉
  • screws = 3.5 × deck ft²
  • hidden = 1.75 × deck ft²

260 ft². With 8 ft × 6 in boards (4 ft² each) and 10% waste → 72 boards. Screws ≈ 910. At $7 per board plus $98 fasteners ≈ $602 total.

Posts, beams, joists, railings, stairs, paint, permits, and labor — this tool focuses on deck flooring and fasteners.