Deck Builders Near Me in Highlands Ranch, CO? Build Your Own Deck With an A-DIY Kit

You have both options. Plenty of south metro deck contractors work in Highlands Ranch, so compare written quotes, proof of insurance and experience with HRCA submittals. Prefer to do it yourself? A-DIY delivers professionally engineered wood and composite deck kits to Highlands Ranch homes, and you or a local handyman can assemble one with a drill.

It depends on size, material, height, footings, permit fees and labor. A-DIY kits range from $3,699 for a 6x12 pressure-treated kit to $12,799 for a 16x28 composite kit, and homeowners typically spend 30–50% less than hiring a contractor. A 12x12 kit is $4,899 in wood or $5,700 in composite. Permits, site prep and hired labor aren’t included.

With A-DIY, a 12x12 deck kit is $4,899 in pressure-treated wood or $5,700 in composite. A 12x16 composite kit is $6,600; the closest wood size is 12x18 at $5,969. A 16x20 kit is $7,600 in wood or $10,199 in composite. Framing, decking, footings and hardware are included.

Highlands Ranch is unincorporated, so building permits come from the Douglas County Building Division, which moved to the 2024 International Residential Code effective July 1, 2026. Attached decks, decks over 200 sq ft and decks more than 30 inches above grade need a permit. The Highlands Ranch Community Association also reviews new and replacement decks, and the County recommends getting HOA approval before you apply.

Douglas County’s code amendments leave the IRC deck exemption in place: a deck of 200 sq ft or less, no more than 30 inches above grade at any point, not attached to the house and not serving the required exit door generally doesn’t need a building permit. A 12x12 A-DIY kit (144 sq ft) fits within that size. HRCA review still applies, and wildfire, setback and easement rules can too.

Many customers use their A-DIY decks for hot tubs and saunas. Applicable configurations are engineered to hold up to 15,000 lbs when properly assembled and supported, but tub weight, placement and wiring vary, so talk to a deck specialist before you order and check local electrical and permit rules.

Douglas County requires footings to extend at least 36 inches below finished grade to get below the frost line, and expansive soils are common in the area. A-DIY kits sit 15–17 inches off the ground on included Tuff Block footings. For any deck that needs a permit, whether a floating deck on surface footings is accepted is up to the Douglas County building official, so ask before you order.

At about 5,800 feet, Highlands Ranch gets strong high-altitude UV, dry air, freeze-thaw swings, spring snow and summer hail. Douglas County designs for a 30 psf ground snow load at elevations from 5,152 to 5,999 feet. Seal pressure-treated wood every one to two years or choose composite, clear snow with a plastic shovel and check the deck for level each spring. In areas mapped under the Colorado Wildfire Resiliency Code, deck materials must comply.

Late April through October is the usual building season. Send your HRCA application, and any County permit, over the winter or early spring so approvals are in hand by the time the ground is dry. Then schedule delivery and build between spring storms or in the long, dry days of early summer.

Pressure-treated wood kits come in 15 sizes: Standard 12x12, 12x18, 12x20, 12x24, 12x28, 16x16, 16x20, 16x24 and 16x28, plus Compact 6x12, 6x16, 6x20, 8x12, 8x16 and 8x20. Composite kits come in 9 sizes from 12x12 to 16x28 in Amazon Gray or Forest Wood. Custom sizes are available on request.

Yes. A-DIY delivers across Highlands Ranch and nearby communities including Littleton, Lone Tree, Centennial, Castle Pines, Roxborough Park, Parker, Englewood and Denver. The carrier calls ahead to schedule curbside LTL delivery, typically within 10–14 business days.

Choose to pay in full, use 0% split payments over up to 8 months, or build now and pay later through Affirm, Klarna or Shop Pay, subject to approval. Still waiting on HRCA approval? The A-DIY Reserve holds today’s price with a $250 non-refundable deposit.