How Long Does It Take to Build a Deck in Utah?

When homeowners in Lehi or Orem ask us how long a deck takes, they usually mean “how long will crews be in my backyard?” That answer is short. The honest answer includes everything that happens before a post hole gets dug — and in Utah County, that front end is where timelines are won or lost.

What Does the Full Deck Timeline Look Like, Phase by Phase?

Phases overlap. We order materials while the permit is in review, so the calendar total is usually 3–6 weeks — not the sum of every row.

How Long Does the Actual Build Take?

Build time comes down to size, height, and complexity:

• Basic 12×16 ground-level deck: 3–4 days. One footing inspection, simple framing, straight decking runs.
• Mid-size composite deck with stairs and railing: 5–7 days. Hidden fasteners, stair stringers, and code-compliant railing add real hours — this is the most common Utah County project on our books, typically landing in the $18,000–$35,000 all-in range.
• Multi-level or second-story deck: 1–2+ weeks. Taller posts, beefier beams, engineered connections, and more inspection touchpoints.

Utah adds a structural wrinkle: footings here go roughly 30 inches deep to get below Utah County’s frost line, and framing along the Wasatch Front is designed for 40+ psf ground snow loads under the 2021 IRC. Those aren’t slow-downs so much as non-negotiables — a deck framed for a Phoenix snow load doesn’t pass inspection in Alpine. Our custom deck builds are engineered for these numbers from day one, which is exactly what keeps the inspection phase from becoming a redo phase.

What Slows Deck Builds Down in Utah?

Three local factors stretch timelines more than anything else:

• The spring rush. From April through June, every homeowner along the Wasatch Front wants a deck before the Fourth of July. Permit desks and inspection calendars back up, and popular composite colors sell out at local suppliers. A permit that takes a week in February can take three in May. Booking in late winter or fall often shaves 1–2 weeks off the total.
• Bench wind days. If you live on the east bench — Alpine, Highland, Draper — canyon winds can make it unsafe to fly long beams or set railing panels. A hard wind day pauses lifted work; crews shift to ground-level tasks, but it can add a day to taller builds.
• Inspection queues. Footings must be inspected before concrete is poured, so a booked-up inspector stalls the whole sequence. During peak season some cities run 2–3 days out. Scheduling inspections the moment holes are dug — not after — is the difference between a pause and a lost week.

Do You Even Need a Permit? (Usually, Yes)

In most Utah County cities, a permit is required if the deck attaches to the house or sits more than 30 inches above grade — which covers the majority of backyard decks. Freestanding, low platforms sometimes skip it. Because permit review is the single longest line item at 1–3 weeks, it’s the first thing worth confirming; our deck permit guide breaks down what each city requires and how long each office is currently taking.

How Do You Get a Timeline You Can Actually Plan Around?

The most common complaint we hear about deck projects isn’t price — it’s vagueness. “A few weeks, weather permitting” isn’t a plan.

At Rooval Deck & Beam Builders, every quote comes with a written timeline: when we file the permit, when materials arrive, the build window, and inspection dates. You get the written quote within 48 hours of your free on-site consult, so you know both the number and the calendar before you commit. We’re licensed and insured Utah builders, part of the Rooval family of companies out of Lehi, and every deck carries a written workmanship warranty.

Frequently Asked Questions