The short answer
National 2026 cost guides put a contractor-built basic pole building shell at roughly $15–$40 per square foot. A finished building with a concrete slab, insulation, electrical and interior liner commonly costs well above that, often double or more. Where your project lands depends on the factors below. The only way to get a real number is an itemized quote for your site, which we provide free.
Figures are published national industry ranges, not a Wes Commerce LLC quote. Local material prices, snow loads and site conditions change real costs.
Common sizes and ballpark shell ranges
Here's what the national shell range works out to for popular sizes. Use it for early budgeting only. Concrete, insulation, electrical and finish work are extra.
| Size (ft) | Square feet | Typical use | Shell ballpark* |
|---|---|---|---|
| 24 × 30 | 720 | Single-bay garage or hobby shop | $11,000–$29,000 |
| 30 × 40 | 1,200 | Two-car garage + workshop | $18,000–$48,000 |
| 40 × 60 | 2,400 | Large shop, RV or equipment storage | $36,000–$96,000 |
| 50 × 80 | 4,000 | Barn, commercial or multi-use building | $60,000–$160,000 |
*Square feet × national $15–$40/sq ft shell range, rounded. Not a quote.
What drives the price in the Spokane area
1. Size, width and wall height
Bigger buildings cost more in total but usually less per square foot, because fixed costs like engineering, permits and crew setup are spread across more area. Wider clear spans need bigger trusses, and taller sidewalls (for RVs, lifts or equipment) add posts, siding and bracing.
2. Snow load
This is the big local factor. Spokane County's basic minimum ground snow load is 30 pounds per square foot, and requirements climb with elevation and location. North of Spokane and in Stevens County they can be higher. Across the line, Kootenai County's lowest zone requires a 40 psf roof snow load. Higher loads mean heavier trusses, closer post spacing and more material, so the same footprint can cost more in Deer Park or Coeur d'Alene than in the Spokane Valley.
3. Doors and openings
Overhead (roll-up) doors, sliding barn doors, walk doors and windows each add cost, and large insulated overhead doors are among the most expensive single items in a shop. Planning door sizes and locations early avoids expensive changes later.
4. Concrete and site prep
A gravel floor is cheapest. A reinforced concrete slab is what most shops and garages need. Grading, excavation, fill and access for trucks all depend on your site. Sloped or rocky lots, common around Spokane, add prep work.
5. Insulation, heat and interior finish
An unheated storage building is the most economical. A shop you'll use through a Spokane winter needs insulation and possibly a liner, heat and electrical, which is where finished-shop costs climb fastest.
6. Permits, drafting and engineering
Anything over 200 square feet generally needs a building permit, with plans that show the structure meets local snow and wind requirements. Because we run our own construction draftworks service, drawings and permit coordination are handled in house instead of being a separate bill from a separate company.
How to keep your pole building on budget
- Decide what the building is for first: storage, a heated shop, animals or vehicles. Size it for that use, plus some room to grow.
- Use standard widths and door sizes where you can. Custom sizes cost more.
- Plan insulation and electrical from the start. Retrofitting costs more than doing it during the build.
- Get an itemized quote, so you can see exactly what's included and compare bids fairly.
Pole building cost FAQs
How much does a pole building cost in Spokane?
National 2026 cost guides put a contractor-built basic pole building shell at roughly $15–$40 per square foot, with finished, insulated and heated shops running considerably higher. Your real cost in the Spokane area depends on size, wall height, snow load, doors, insulation, concrete and site prep. Wes Commerce LLC gives you an itemized quote after a free site visit.
How much does a 30x40 pole building cost?
A 30×40 building is 1,200 square feet. At national shell ranges of $15–$40 per square foot, that's very roughly $18,000–$48,000 before a slab, insulation, electrical and finish work. Add-ons and local snow loads move that number, so treat it as a starting point for budgeting, not a quote.
How much does a 40x60 pole building cost?
A 40×60 is 2,400 square feet. Using the same national shell range, that's roughly $36,000–$96,000 for the basic building, before concrete, insulation and electrical. Larger buildings usually cost less per square foot because fixed costs are spread over more area.
Is a pole building cheaper than a stick-frame garage?
Usually, especially for larger, open buildings. Post-frame construction uses fewer, larger structural members and doesn't need a continuous perimeter foundation, which typically saves on materials and labor for shops, barns and storage buildings.
Do I need a permit for a pole building in Spokane County?
If it's over 200 square feet, almost certainly yes. Under the code adopted in Spokane County, only one-story detached accessory structures of 200 square feet or less (small sheds and playhouses) are exempt. We draft the plans and coordinate the permit for you.
Is a kit cheaper than hiring a builder?
The kit price is lower, but you take on the engineering questions, permitting, site prep, concrete, erection labor and the risk of mistakes. Many owners find a complete, contractor-built building is better value once everything is counted.
Get a real number for your building
Tell us the size and what you'll use it for. We'll visit the site and send an itemized, no-obligation quote.