What Does a Deck Cost in Utah? A 2026 Pricing Guide From a Trex Pro Builder

For a standard rectangular Trex composite deck attached to the house, with code-compliant footings, framing, and railing, budget the following ranges on the Wasatch Front in 2026:

Pressure-treated wood comes in roughly 35–45% cheaper, but that gap closes inside a decade once you factor in stain cycles, board replacement, and the structural rebuild most wood decks need at the 12–15 year mark in Utah's climate. We cover that math in detail in Trex vs. wood decks in Utah.

Square footage and decking material are the obvious cost drivers, but they are usually not the reason two bids differ by $10k+. The real swing factors are below.

• Deck height. Anything over 30 inches off grade requires guardrails, often requires intermediate footings, and crosses the IRC threshold that triggers a more involved permit review. Going from a 24-inch deck to a 48-inch deck on the same footprint can add $3–6k.
• Stairs. A single straight run of stairs is cheap. A landing, a return, or a wraparound staircase is not — expect $1,500–$4,500 per staircase depending on rise, width, and railing.
• Railing. Standard composite or aluminum picket runs $55–$95 per linear foot installed. Cable railing, glass panels, and custom horizontal aluminum can run $140–$240 per linear foot. On a 60-foot perimeter that's a $5k–$9k swing.
• Substructure condition. If your existing ledger is rotted into the rim joist (we see this on roughly 70% of pre-2010 Utah decks), the repair adds $1,200–$3,500 to a replacement bid. A bid that does not mention this is either guessing or planning to charge you later.
• Lighting and electrical. Low-voltage post cap lights and stair risers are typically $1,200–$2,800 installed for a mid-size deck. Hardwired outlets on the deck require a permitted electrical sub and add $600–$1,500.
• Pergola or cover. A cedar pergola starts around $7k for a small footprint and goes up fast with size and finish. A full patio cover with a structural roof tied into the house is a $14k–$30k addition. See pergola vs. patio cover for the breakdown.
• Site access. If we have to carry materials through a finished basement or hand-carry framing around the side of a zero-lot-line home, labor goes up 10–15%. Most Wasatch Front lots are fine; bench properties in Emigration, Olympus Cove, and Suncrest sometimes are not.

On a typical 14×20 Utah deck replacement, here is roughly where the dollars go. Percentages will shift with material choice and complexity, but the proportions hold for most jobs.

Notice that labor is the single biggest line on almost every deck. That is why the contractor matters more than the brand of board. A $4,000 "savings" on a builder who skips ledger flashing or under-spans the joists will cost you $15,000 in repairs at year eight.

Trex sells three product lines. They all carry the same 50-year warranty, but the look, color depth, and price differ meaningfully. We spec all three depending on the project — there is no "best" line, only the right fit for the home.

• Trex Enhance. The budget line. Single-sided shell, fewer color options, a more uniform grain pattern. Material runs roughly $4.20–$5.10 per square foot. Best fit: rental properties, simple replacement decks, budget-driven Murray and West Jordan builds.
• Trex Select. The mid-tier. Better color depth, a more natural variegated pattern, scalloped underside (lighter and lower cost than fully solid). Material runs roughly $6.50–$7.80 per square foot. Best fit: most Holladay, Sandy, and Cottonwood Heights replacement decks.
• Trex Transcend. The premium line. Solid board, deepest color streaking, the only line with a true tropical hardwood look. Material runs roughly $9.20–$11.50 per square foot. Best fit: Park City, Alpine, Suncrest, and any high-end build where the deck is part of the home's curb appeal.

We dig into the differences and the failure modes we have seen across nine Utah winters in Trex Transcend vs. Select vs. Enhance.

Every Wasatch Front city requires a permit for a deck attached to the house. The permit itself is small money ($120–$420 depending on city and project value), but the time and paperwork are not. We handle the permit on every job. Below are the realistic permit timelines we see for the cities we build in most.

For per-city HOA notes, lot considerations, and the structural specs that vary by jurisdiction, see deck permits in Utah cities.

There are real ways to bring a Utah deck budget down without ending up with a deck you will regret. There are also a few corners that look like savings on the bid and turn into expensive repairs by year six.

Smart places to save:

• Pick a simpler rectangular footprint. Every corner and angle adds material waste and labor.
• Step down to Trex Enhance or Select if the deck is not a focal point of the back of the house.
• Use composite picket railing instead of cable or glass — same code compliance, a third of the cost.
• Skip the built-in benches and planters. They look great in renderings and rarely get used.
• Build now, add the pergola in year two. The deck framing can be engineered to support a future pergola without paying for it today.

Places not to save:

• Joist spacing and span. Going from 16" on-center to 12" on-center adds a few hundred dollars in framing and makes the deck feel rock-solid. Most failed Utah decks failed in the framing, not the boards.
• Ledger flashing. The number-one cause of structural failure in Utah is water intrusion at the ledger. Proper flashing tape and a metal cap is a $200 line item that prevents a $20k tear-off.
• Hidden fasteners. Face-screwing composite boards voids the warranty on most Trex lines and looks bad inside three winters. Always use the hidden clip system.
• Code-compliant railing. A 36-inch railing on a 30-inch+ deck is not optional. We see DIY and handyman decks every year that get red-tagged at inspection and have to be ripped out.

Every quote we send to a Utah homeowner includes the same line items, in the same order, so you can hold us to it and compare us against any other bid on a fair basis:

1. Demo and haul-away of the existing deck (if applicable), itemized separately.
2. Footings: count, diameter, depth, and concrete yardage.
3. Framing: species, grade, joist spacing, beam spans, and hardware (Simpson hangers, ledger lag schedule).
4. Decking: brand, line, color, square footage, and fastener system.
5. Railing: linear feet, system, post count, and infill type.
6. Stairs: count, rise, run, width, and railing.
7. Optional adders: lighting, pergola, skirting, gates, planters — each priced separately so you can drop them without re-quoting.
8. Permit, dump fees, and a fixed project management line. No "miscellaneous."

If a competing bid is a single number with no line items, you are not actually comparing prices — you are comparing trust. Ask for the breakdown.