Total Deck Cost
$11,920
$37/sq ft · 320 sq ft · Composite (Trex/TimberTech)
Cost Breakdown
| Item | Cost |
|---|
| Decking (Composite (Trex/TimberTech)) | $3,200 |
| Framing (PT lumber) | $640 |
| Hardware (screws, hangers) | $480 |
| Railing (52 lf) | $1,820 |
| Stairs (4 steps) | $480 |
| Professional Labor | $4,800 |
| Building Permit | $500 |
| Total | $11,920 |
Materials Estimate
Decking Boards
35 boards
20' lengths
Floor Joists
16 joists
2x8 or 2x10, 16" OC
Deck Screws
1120 screws
~3.5 per sq ft
Material Comparison (320 sq ft deck)
| Material | Material Cost | Lifespan | 10yr Maintenance | Warranty |
|---|
| Pressure-Treated Pine | $2,080 | 10-15 years | $1,600 | Limited lifetime (structural) |
| Cedar | $3,040 | 15-20 years | $1,280 | None typical |
| Redwood | $3,680 | 20-25 years | $1,280 | None typical |
| Composite (Trex/TimberTech)Selected | $4,320 | 25-30 years | $320 | 25 years |
| PVC / Cellular | $4,960 | 30+ years | $160 | Limited lifetime |
| Ipe (Brazilian Hardwood) | $5,920 | 40+ years | $640 | None typical |