Beautiful grain. Rot-resistant. Medium maintenance.
Low Maintenance
Composite (Trex, etc.)
$35–$65 / sq ft
No staining ever. Looks great long-term. Lasts 30 yrs.
Premium
Tropical Hardwood
$50–$85 / sq ft
Ipe, teak, or mahogany. Extremely durable. High-end look.
Step 3
Where is your deck located?
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Your Personalized Estimate
12×16 Pressure-Treated Deck · Texas
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Pro tip for TexasTexas labor costs are close to the national average. Summer heat can slow framing work — spring and fall builds are often faster and cheaper.
Estimates are for planning purposes only and based on 2025 contractor data. Always get at least 3 quotes before hiring. Prices vary by ZIP code, site conditions, and contractor availability.
20×20 deck costs between $8,000 and $26,000 for most homeowners in 2026, depending on material and location. At 400 square feet, it is one of the most popular large deck sizes and gives you serious outdoor living space with room for multiple zones.
Frequently Asked Questions
How much does a 20×20 deck cost in 2026?
A 20×20 deck costs $8,000 to $14,000 for pressure-treated wood and $14,000 to $26,000 for composite decking. At 400 square feet, this is one of the most popular large deck sizes among homeowners who love to entertain.
What can fit on a 20×20 deck?
A 20×20 deck can fit a large dining table for 10, a full outdoor sofa set, a grill station, and a dedicated bar area. Many homeowners also add a pergola or shade structure at this size.
Is composite worth it on a 20×20 deck?
At 400 square feet, composite decking becomes a strong value proposition. The savings on staining, sealing, and board replacement over 10 to 15 years can offset the higher upfront cost significantly.
How long does it take to build a 20×20 deck?
A 20×20 deck typically takes 7 to 12 days for an experienced crew. Permit approval, site preparation, and custom features like built-in seating can extend the timeline.
