14×20 Deck Cost Calculator: 2026 Price Guide

14×20 deck costs between $5,600 and $18,200 for most homeowners in 2026, depending on material choice and location. At 280 square feet, it is a generous mid-size deck that gives you enough room for dining and lounging without going full large-scale.

Frequently Asked Questions

How much does a 14×20 deck cost in 2026?

A 14×20 deck costs between $5,600 and $9,800 for pressure-treated wood. Composite decking runs $9,800 to $18,200. The final cost depends on your state, site conditions, and contractor rates.

What can fit on a 14×20 deck?

A 14×20 deck comfortably fits an 8-person dining set plus a small lounge area or grill station. It is a great size for families who regularly entertain outdoors.

Is a 14×20 deck a common size?

It is less common than 12×16 or 16×20 but a great choice if you want something between the two. The extra 2 feet of width compared to a 12×20 makes a noticeable difference in furniture layout options.

How long does it take to build a 14×20 deck?

A 14×20 deck typically takes 5 to 8 days for an experienced crew, not including permit wait times. Complex designs with stairs or multiple levels will take longer.