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How Much Does a Composite Deck Cost in Johnson County?

Every deck is different, but here is an example project — with real options, from a crew that builds these every week.

Completed composite deck with railing and stairs

What Most Johnson County Projects Cost

For most homeowners in Johnson County, projects typically fall between $20,000 and $40,000, depending on size, decking selection, railing selection, and overall finish level.

Every deck is different, but here is an example project to show what that looks like in practice.

Example Project: A $25k Deck

  • Size: 16' x 20' (320 sq ft), single level
  • Framing: Pressure-treated ProWood TruFrame (limited lifetime warranty)
  • Decking: Mid-range composite boards, 25-year warranty
  • Railing: Black aluminum balusters with composite top rail
  • Stairs: One staircase to grade, 4 steps
  • Extras: Fascia wrap, hidden fasteners, permit & inspections

That's a complete, code-compliant, fully permitted deck with a 25-year decking warranty and a limited lifetime warranty on the frame lumber — plus our one-year workmanship warranty.

What Moves the Price Up or Down

Size and elevation

Square footage is the biggest driver, but height matters too. A walkout-basement deck 10 feet off grade needs taller posts, more bracing, and longer stairs than a ground-level platform.

Framing material

Traditional treated lumber is the baseline. Our specialty — composite and steel framing — costs more upfront but eliminates the most common failure point of any deck: a rotting frame under perfectly good boards.

Decking and railing tier

Composite boards range from entry-level to premium mineral-based products. Railing runs from simple aluminum balusters to glass panels and lighted post caps.

Features

Built-in benches, planters, privacy walls, lighting packages, and covered sections all add cost — and all show up in your 3D design first, so you can decide with real numbers.

Why We Can Be More Affordable

Our dedicated crew completes approximately 75% of projects in under three weeks. Faster builds mean less overhead per project, and that efficiency shows up in your quote — without a single corner cut.

Get an Exact Number

Every yard, house, and wish list is different. The only accurate price is one designed for your project — and our estimates are always free.

Want an Exact Price for Your Deck?

Get a free estimate on your custom deck, screened porch, or season room. Most projects are completed in under three weeks.