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A 14x14 deck covers 196 square feet and costs about $3,450 – $5,390 installed in pressure-treated pine, up to $7,526 – $11,760 in composite. It takes about 33 decking boards at 16 ft, 11 joists, 3 footings and 42 linear feet of railing.
| Material | Installed cost |
|---|---|
| Pressure-Treated Pine | $3,450 – $5,390 |
| Cedar | $5,018 – $7,840 |
| Redwood | $5,958 – $9,310 |
| Composite (Trex/TimberTech) | $7,526 – $11,760 |
| PVC / Cellular | $9,094 – $14,210 |
| Ipe / Tropical Hardwood | $10,192 – $15,925 |
A 14x14 deck is 196 square feet. In pressure-treated pine, expect roughly $3,450 – $5,390 installed. Cedar runs about $5,018 – $7,840 and composite about $7,526 – $11,760. 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 14 ft direction, you need 30 rows — that is 420 linear feet of decking, or about 33 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.