Materials for a 10×10 deck
25 deck boards (10 ft)
for 100 sq ft: 22 rows of 5½ in boards with a ⅛ in gap, on 9 joists, with 10% extra.
For a 10×10 foot deck, the boards run along the 10 ft side and the joists span the 10 ft side.
Materials for a 10×10 deck
| Deck area | 100 sq ft |
|---|---|
| Deck boards (5½ in × 10 ft) | 25 |
| Linear feet of decking | 220 ft (+10% = 242 ft) |
| Joists at 16 in on center | 9 × 10 ft |
| Joists at 12 in on center | 11 × 10 ft |
| Rim joists | 2 × 10 ft |
| Deck screws | about 396 |
Framing sizes (joist depth, beams, posts and footings) depend on spans and local code; check your building department’s deck guide before you build.
Change the numbers
Other deck sizes
- 8×10 deck
- 10×12 deck
- 10×14 deck
- 10×16 deck
- 10×18 deck
- 10×20 deck
- 10×24 deck
- 8×12 deck
- 8×14 deck
- 8×16 deck
- 8×8 deck
- 8×18 deck
Questions
- How many deck boards do I need for a 10×10 deck?
- 25 boards 10 ft long (5½ in wide), laid in 22 rows, including 10% extra.
- How many joists for a 10×10 deck?
- 9 joists 10 ft long at 16 in on center, or 11 at 12 in on center.
- How many screws for a 10×10 deck?
- About 396 deck screws: two per board at each joist. A 5 lb box holds roughly 350 to 450 screws.
- How much does a 10×10 deck cost?
- Decking boards alone run about $387 in pressure-treated pine or $968 in composite. A finished 100 sq ft deck built by a contractor typically costs $3,000 to $6,000.