⚡ Exterior · Great Falls, MT

How Much Does It Cost to Build a Deck in Great Falls, MT?

Local pricing for the Great Falls metro area · Updated April 2026

Low End
$3,630
Basic install
Average Cost
$7,710
Most homeowners pay this
High End
$16,330
Complex install
$3,860
Labor (50%)
$3,860
Materials (50%)
3–10
Days to complete

Prices estimated using the NailThePrice Local Cost Model™ — national averages adjusted for Great Falls's labor rates, cost of living, and material pricing.

How Much Does Each Part of Deck construction Cost?

The cost to build a deck in Great Falls ranges from $3,630 to $16,330, with most homeowners paying around $7,710. Your actual cost depends on several factors specific to your home and the Great Falls market.

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Square Footage

Deck cost scales directly with size — a 200 sq ft deck costs roughly half of a 400 sq ft deck for the same material and height.

Material (Pressure-Treated, Composite, Hardwood)

Pressure-treated wood is cheapest ($15–$25/sq ft), composite costs $25–$45/sq ft, and exotic hardwoods run $30–$60/sq ft installed.

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Height And Stairs

Elevated decks need taller posts, more bracing, and stairs — each set of stairs adds $500–$2,000 depending on height and material.

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Railing Style

Basic wood railings cost $20–$40/ft while cable, glass, or composite railings run $60–$150/ft installed.

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Permits And Engineering

Most jurisdictions require a building permit ($100–$500) and may require engineered plans for elevated decks, adding $300–$1,000 in design fees.

Mountain region costs are rising with population growth. High altitude and variable weather can affect project timelines. Skilled trade labor is in high demand in booming markets.

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Permit Required in Great Falls

Budget $66–$440 for permits and inspections. Your contractor typically handles the permit process, but confirm this upfront.

How Does Great Falls's Climate Affect Deck construction?

Short construction seasons mean contractors book up fast in spring and summer. Schedule major exterior projects in late winter for best pricing and spring availability.

Can You DIY Deck construction or Should You Hire a Pro?

🔧 Moderate DIY

Handy homeowners with basic tools can handle straightforward deck construction. If your project involves the panel, new circuits, or gas lines, hire a licensed pro. DIY can save $2,702–$3,474 in labor.

How Can You Save Money on Deck construction in Great Falls?

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Common Questions About Deck construction in Great Falls

How much does it cost to build a deck in Great Falls, MT?

The average cost to build a deck in Great Falls ranges from $3,630 to $16,330, with most homeowners paying around $7,710. This estimate includes both labor ($3,860) and materials ($3,860). Costs in Great Falls are lower than the national average due to local cost of living and labor market conditions. Get multiple quotes from licensed Great Falls contractors to lock in the best price.

Is a permit required for deck construction in Great Falls?

Yes, Great Falls typically requires a permit for deck construction. Budget $66–$440 for permit fees and expect 1–2 weeks for approval. Your contractor typically handles the permit application. Working without a required permit can void warranties and create problems when selling your home.

How long does deck construction take in Great Falls?

Most deck construction projects in Great Falls take 3–10 days to complete. The timeline depends on project scope, contractor availability in the Great Falls metro area, and seasonal demand. Scheduling during Great Falls's off-peak season (typically fall and winter) can reduce wait times and may lower costs.

Is composite or wood decking better?

Composite decking costs more upfront but requires virtually zero maintenance — no staining, sealing, or rot concerns. Pressure-treated wood costs less initially but needs staining every 2–3 years ($500–$1,500 per treatment). Over 20 years, composite often costs less total.

Does a deck increase home value?

Yes — a well-built deck returns 50–75% of its cost at resale according to Remodeling Magazine's Cost vs. Value report. Wood decks tend to return a higher percentage than composite, but composite decks are more attractive to buyers who value low maintenance.

What Do Other Projects Cost in Great Falls?

How Much Does Deck construction Cost in Nearby Cities?

Build a Deck in Billings, MT — $8,100 Build a Deck in Missoula, MT — $8,530
Published March 2025 · Updated April 14, 2026 · Cost data based on local labor rates and market conditions in the Great Falls metropolitan area.