How Much Does a Deck Cost in Billings?
If you’re planning a new deck in Billings, one of the first questions is usually how much it will cost. A reasonable starting point for a professionally built deck is roughly $25 to $60 or more per square foot, depending on the materials, size, height, railing, stairs, site conditions, and complexity of the project.
That means a typical deck can range from several thousand dollars for a small, straightforward wood deck to $20,000 or more for a larger composite deck with railings, stairs, or more complex construction. The estimates below are intended as planning ranges rather than contractor quotes.
Quick Estimate
Typical professionally built deck: $25–$60+ per sq. ft.
12 × 16 deck (192 sq. ft.): roughly $5,000–$12,000+
16 × 20 deck (320 sq. ft.): roughly $8,000–$20,000+
Actual prices can fall outside these ranges. Material selection, deck height, stairs, railings, foundation requirements, site access, demolition, and custom features can significantly affect the final price.
Typical Deck Costs in Billings
Deck size provides a useful starting point for estimating cost, but two decks with the same dimensions can have very different prices. A simple ground-level pressure-treated deck may cost considerably less than an elevated composite deck with stairs and railings.
The following ranges can be used as a general starting point when budgeting for a professionally built deck in the Billings area.
| Deck Size | Square Feet | Rough Planning Range |
|---|---|---|
| 10 x 12 | 120 sq. ft. | $3,000–$7,000+ |
| 12 x 16 | 192 sq. ft. | $5,000–$12,000+ |
| 16 x 20 | 320 sq. ft. | $8,000–$20,000+ |
| 20 x 20 | 400 sq. ft. | $10,000–$25,000+ |
These figures are planning estimates rather than fixed local prices. A straightforward wood deck may fall near the lower end of the range, while composite decking, elevated construction, extensive railings, stairs, difficult site access, or custom features can push the total above the ranges shown.
Deck Cost by Material
The decking material you choose can have a major impact on both the upfront cost of a new deck and what you’ll spend maintaining it over time. Pressure-treated lumber generally offers the lowest initial cost, while cedar, composite, and premium synthetic products increase the upfront investment.
| Decking Material | Rough Installed Range | What to Know |
|---|---|---|
| Pressure-treated wood | $20–$35/sq. ft. | Lower upfront cost, but requires regular maintenance |
| Cedar | $28–$40/sq. ft. | Natural appearance with higher material cost |
| Composite | $40–$60+/sq. ft. | Higher upfront cost with lower routine maintenance |
| Premium Composite/PVC | $50–$70+/sq. ft. | Premium materials, finishes, and long-term durability |
These ranges include more than the decking boards themselves. A professionally built deck also requires framing, footings, hardware, labor, and potentially railings and stairs. Product choice within each material category can also create substantial price differences.
Upfront Cost Isn’t the Whole Story
Wood can be less expensive initially, but Montana’s sun, snow, temperature swings, and dry conditions make ongoing maintenance an important part of the decision. Composite and PVC typically cost more upfront but do not require the same routine staining or sealing as wood. Homeowners should consider both the initial construction cost and the amount of maintenance they are willing to take on over the life of the deck.
What Affects the Cost of a Deck in Billings?
Square footage and decking material are useful starting points, but they don’t tell the whole story. Several design and site factors can significantly change the final price of a deck project.
Deck Height
A low deck close to grade is generally simpler to build than an elevated deck. Taller decks require longer posts and additional structural considerations and are also more likely to require extensive guardrails and stairs.
Railings
Railings can add a significant amount to the project cost, particularly on elevated decks. The total depends on how many linear feet are needed and whether you choose wood, composite, metal, cable, or another railing system.
Stairs
Stairs add framing, materials, railing, and labor that aren’t reflected well in a simple per-square-foot deck estimate. A deck several feet above grade can therefore cost considerably more than a similarly sized ground-level deck.
Site Conditions and Access
A sloped lot, limited access to the backyard, difficult soil conditions, or obstacles around the work area can increase the amount of labor and equipment required. Even two otherwise identical decks can have different construction costs because of the site they’re built on.
Removing an Existing Deck
If an old deck needs to be removed before construction can begin, demolition and disposal will add to the project cost. The amount will depend on the size and construction of the existing deck and how easily materials can be removed from the property.
Design Complexity
Simple rectangular decks are generally less expensive to build than designs with multiple levels, angles, curves, picture-frame borders, or other custom details. More complex designs typically require additional materials, cuts, framing, and labor.
Additional Features
Built-in seating, privacy screens, pergolas, lighting, under-deck drainage systems, upgraded railings, and other features can quickly increase the overall project budget. Decide which features are priorities early in the planning process so they can be included when comparing contractor estimates.
A Billings-Specific Factor: Frost Depth
Deck construction in Billings has to account for Montana’s freezing temperatures. The City of Billings specifies a 42-inch frost depth, and its deck construction guidance shows deck footings extending to that depth. Properly designed footings help protect the structure from movement caused by freezing and thawing soil.
For homeowners, this matters because the foundation of a deck is part of the project’s cost even though it isn’t visible once construction is complete. The number and size of footings, deck height, soil and site conditions, and the amount of excavation required can all affect labor and material costs.
Billings Frost Depth: 42 Inches
The City of Billings lists a 42-inch frost depth for residential construction. Deck plans should account for local foundation requirements rather than relying on construction details intended for warmer climates.
Because structural requirements can vary with the design and site, homeowners should confirm current requirements with the City of Billings and their contractor before construction begins.
Don’t Forget Permits and Planning
A new deck in Billings isn’t just a materials-and-labor project. The City of Billings lists decks among the types of construction that require a building permit, so permitting should be part of the planning process and project budget.
Building permit fees in Billings are based on the value of the project. Under the city’s 2026 fee schedule, a project valued between $2,001 and $25,000 has a base fee of $45 for the first $2,000, plus $8 for each additional $1,000 or fraction of $1,000. For example, a deck with a permit valuation of $15,000 would have a building permit fee of approximately $149.
Permits Aren’t the Only Planning Consideration
Property lines, setbacks, easements, utilities, and the zoning requirements for a specific property can also affect where and how a deck can be built. These requirements can vary by property, so homeowners should verify them before finalizing a design or signing a construction contract.
For a more detailed explanation, see our guide Do You Need a Permit to Build a Deck in Billings?
Example Deck Budgets for Billings Homeowners
Every project is different, but the following examples show how deck size, materials, height, railings, and other features can change the overall budget. These are planning examples rather than contractor quotes.
Basic Wood Deck
12 × 16 | 192 sq. ft.
Pressure-treated wood, relatively low to the ground, simple rectangular design, and straightforward site access.
Planning range: $5,000–$8,000
Mid-Range Composite Deck
16 × 20 | 320 sq. ft.
Composite decking with a standard railing system, some stairs, and typical residential construction.
Planning range: $13,000–$20,000+
Larger Elevated Deck
20 × 20 | 400 sq. ft.
Composite or premium decking, elevated construction, substantial railing and stairs, and upgraded details.
Planning range: $20,000–$30,000+
These examples are intended to illustrate how quickly project specifications can change the budget. Actual contractor estimates may be lower or higher depending on material selections, labor, site conditions, structural requirements, and the exact scope of work.
Getting Deck Estimates in Billings
When you’re ready to talk with deck builders, comparing only the final price can be misleading. Two estimates for the same deck may include different materials, railing systems, site preparation, demolition, permit responsibilities, or finishing details.
What Should A Deck Estimate Include?
- Deck dimensions and overall project scope
- Decking and framing materials
- Railing materials and approximate linear footage
- Stairs and landings
- Footings and foundation work
- Demolition and disposal, if needed
- Permit responsibilities and fees
- Site preparation
- Any lighting, privacy screens, pergolas, or other upgrades
- Cleanup and debris removal
Ask contractors to identify allowances or items that aren’t included in the quoted price. A lower estimate isn’t necessarily less expensive if important parts of the project will be added later as change orders or additional charges.
Compare Scope, Not Just Price
When reviewing multiple estimates, make sure the contractors are pricing substantially the same project. Differences in decking products, railing systems, framing specifications, warranties, and included work can explain why two estimates for a similarly sized deck are thousands of dollars apart.
Taking the time to define the project before requesting estimates makes those estimates much easier to compare—and gives you a more realistic picture of what your deck will actually cost.
Frequently Asked Questions About Deck Costs in Billings
How much does a 12 × 16 deck cost in Billings?
A 12 × 16 deck contains 192 square feet. As a rough planning estimate, a professionally built deck of this size might cost approximately $5,000 to $12,000 or more, depending on the decking material, height, railings, stairs, site conditions, and other features.
Is composite decking more expensive than wood?
Generally, yes. Composite decking typically costs more upfront than pressure-treated wood and many cedar options. However, composite doesn’t require the same routine staining and sealing as wood, so homeowners should consider maintenance requirements as well as initial construction cost.
Do I need a permit to build a deck in Billings?
The City of Billings lists decks among the types of construction that require a building permit. Permit costs are based on project valuation, and zoning or property-specific requirements may also affect a proposed deck.
How much should I budget beyond the basic deck price?
Leave room for items that may not be obvious in a simple square-foot estimate, including railings, stairs, demolition, permits, site preparation, upgraded materials, lighting, privacy features, and other additions. A detailed contractor estimate should identify what is and isn’t included.
How many deck estimates should I get?
Getting estimates from multiple qualified contractors can help you understand the local market and compare different approaches to the project. More important than simply comparing the final prices is making sure each contractor is estimating substantially the same materials, features, and scope of work.
Planning Your Deck Budget
For most Billings homeowners, the best way to think about deck cost is as a range rather than a single price per square foot. Size and decking material establish a starting point, but railings, stairs, deck height, site conditions, foundation work, permits, and design choices can substantially change the final cost.
Start by deciding how you want to use the deck, establish a realistic budget, and identify the materials and features that matter most to you. From there, detailed estimates from local deck builders will give you a much clearer picture of what your specific project is likely to cost.