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

It depends on the deck. Fort Collins contractors are the right call for attached, elevated or custom designs; compare a few written quotes and ask about recent Larimer County projects. For a freestanding ground-level deck, an A-DIY kit arrives professionally engineered with labeled parts, footings and hardware, so you or a local handyman can build it with a drill.

Contractor quotes vary with size, material, height, footings and labor. A-DIY kits start at $3,699 for a 6x12 pressure-treated deck and go up to $12,799 for a 16x28 composite deck; a 12x12 is $4,899 in wood or $5,700 in composite. Skipping contractor labor is where the savings come from, and homeowners typically spend 30–50% less. Permits, site prep and hired help are extra.

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.

Inside city limits, permits come from City of Fort Collins Building Services. Its residential deck guide requires a permit for any deck that is attached to the house, more than 30 inches above grade or over 200 sq ft, and for a deck or landing serving the front door. Outside city limits, the Larimer County Building Department handles permits instead.

The City exempts small residential decks that are 200 sq ft or less, 30 inches or less above grade, not attached to the house and not serving the required exit door. Exempt doesn’t mean exempt from code: the deck still has to meet City building and zoning rules, including setbacks.

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.

The City lists a 30-inch frost depth, and its residential deck guide calls for footings at least 30 inches below grade for attached decks and at least 12 inches for freestanding decks. Clay soils that swell when wet occur in parts of Northern Colorado, and the City reviews specialty footing products individually, so ask Building Services whether your planned footings, including the Tuff Blocks in an A-DIY kit, are acceptable.

Fort Collins averages roughly 51 inches of snow a year, along with dry air, strong high-altitude sun, gusty winds and summer hail. Seal pressure-treated wood every one to two years or go with composite, clear snow with a plastic shovel and recheck the deck for level each spring. Portions of the city lie in the wildland-urban interface, where wildfire rules can apply to new permits.

April through October is the usual window, with late spring and early fall offering the most comfortable building days. Late-season snowstorms are common, so order in winter, schedule delivery once the ground dries out and keep an eye on afternoon thunderstorms in 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 ships by LTL freight to Fort Collins and nearby communities including Loveland, Windsor, Timnath, Wellington, Laporte and Greeley. The carrier calls ahead to schedule curbside delivery, typically within 10–14 business days.

Pay in full, spread the cost across 0% split payments for up to 8 months, or build now and pay later through Affirm, Klarna or Shop Pay, subject to approval. A-DIY Reserve lets you hold today’s price with a $250 non-refundable deposit.