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.
12×24 deck costs between $5,760 and $18,720 for most homeowners in 2026, depending on material and location. At 288 square feet, it is a long narrow deck that works well for homes where the yard runs deep and narrow, allowing for distinct zones along the length.
Frequently Asked Questions
How much does a 12×24 deck cost in 2026?
A 12×24 deck costs between $5,760 and $10,080 for pressure-treated wood and $10,080 to $18,720 for composite decking. The long narrow format makes it a distinctive option for the right yard shape.
What can fit on a 12×24 deck?
A 12×24 deck fits a full outdoor dining set at one end, a lounge area in the middle, and a grill station at the other end. The 24-foot length creates three natural zones for outdoor living.
How does a 12×24 compare to a 16×20?
Both are approximately 288 to 320 square feet but with different footprints. A 12×24 is narrower and longer while a 16×20 is wider and shorter. Choose based on your yard shape and how you want to use the space.
How long does it take to build a 12×24 deck?
Most contractors complete a 12×24 deck in 4 to 7 days. The extra length adds to the framing and decking time compared to shorter builds of similar square footage.
More Deck Size Calculators
Deck Cost by State
Deck Cost by City
Ready to build your deck?
Get free quotes from local deck contractors - no obligation.
Get Free Quotes from Angi →