As an Amazon Associate I earn from qualifying purchases.
A 10x14 deck covers 140 square feet and costs about $2,464 – $3,850 installed in pressure-treated pine, up to $5,376 – $8,400 in composite. It takes about 24 decking boards at 16 ft, 11 joists, 3 footings and 34 linear feet of railing.
| Material | Installed cost |
|---|---|
| Pressure-Treated Pine | $2,464 – $3,850 |
| Cedar | $3,584 – $5,600 |
| Redwood | $4,256 – $6,650 |
| Composite (Trex/TimberTech) | $5,376 – $8,400 |
| PVC / Cellular | $6,496 – $10,150 |
| Ipe / Tropical Hardwood | $7,280 – $11,375 |
A 10x14 deck is 140 square feet. In pressure-treated pine, expect roughly $2,464 – $3,850 installed. Cedar runs about $3,584 – $5,600 and composite about $5,376 – $8,400. Building it yourself typically removes 40 to 55 percent of those figures, because labour is around half of a finished deck price.
Laying boards across the 10 ft direction, you need 22 rows — that is 308 linear feet of decking, or about 24 boards at 16 ft with a waste allowance. A 16 ft board crosses the deck in one piece, so there are no butt joints.
About 3, one under each post, with posts at no more than 8 feet along the beam. That is roughly 0.37 cubic yards of concrete for 12 inch tubes poured 42 inches below grade — around 17 eighty-pound bags. Your own frost depth sets the real number and is not negotiable.