Concrete Slab costs $5.73 to $11.46 per sq ft in Boise City in 2026. For a 400 sq ft project, expect $2,292 – $4,584 installed, typically near $3,438. That is essentially in line with the Idaho average.
Boise City concrete slab calculator
Planning estimate. Wage index applies to the labor share only; materials held at national prices. Get three written quotes.
How Boise City compares with the rest of Idaho
Construction wages in Boise City average $28.58 per hour against $28.31 statewide, so pricing tracks the Idaho norm closely.
Labor is about 50% of the installed cost on this type of work, and it is the part that actually moves between markets. Materials are priced by national manufacturers and barely shift, which is why the gap between metros is narrower than wage differences alone suggest.
Concrete Slab cost by project size in Boise City
| Project size | Boise City range | Typical |
|---|---|---|
| 100 sq ft | $573 – $1,146 | $860 |
| 200 sq ft | $1,146 – $2,292 | $1,719 |
| 300 sq ft | $1,719 – $3,438 | $2,579 |
| 400 sq ft | $2,292 – $4,584 | $3,438 |
| 600 sq ft | $3,438 – $6,876 | $5,157 |
| 800 sq ft | $4,584 – $9,168 | $6,876 |
| 1,000 sq ft | $5,730 – $11,460 | $8,595 |
| 1,500 sq ft | $8,595 – $17,190 | $12,893 |
Where the money goes
For a 400 sq ft project in Boise City at roughly $3,438, a typical bill splits like this:
| Line item | Share | Cost |
|---|---|---|
| Labor | 50% | $1,719 |
| Materials | 36% | $1,238 |
| Site prep & equipment | 8% | $275 |
| Overhead, disposal & finishing | 6% | $206 |
Boise City compared with other Idaho markets
| Area | Cost per sq ft | vs Boise City |
|---|---|---|
| Idaho Falls | $5.82 – $11.64 | +2% |
| Coeur d’Alene | $5.79 – $11.58 | +1% |
| Twin Falls | $5.43 – $10.87 | −5% |
| Pocatello | $5.61 – $11.21 | −2% |
| Idaho average | $5.70 – $11.41 | 0% |
Ground conditions and code in Boise City
Permits in Boise City
A residential permit for this work typically runs around $400 in Idaho. Permit cost is rarely included in a contractor quote, so budget it separately and confirm scope with the Boise City building department before work begins.
Hiring in Boise City
Get three written, itemised quotes from licensed and insured contractors, each specifying the same scope and grade of material. Ask for local references and check the licence is current in Idaho.
Frequently asked questions
How much does concrete slab cost in Boise City?
In 2026, concrete slab costs $5.73 to $11.46 per sq ft in Boise City. For a 400 sq ft project, the installed total typically lands between $2,292 and $4,584.
Is Boise City more expensive than the rest of Idaho?
Not meaningfully. Boise City prices track the Idaho average closely.
Do I need a permit in Boise City?
Most work of this type and value requires a permit. Budget around $400 in Idaho and allow extra time for review in metro jurisdictions.
How do I compare quotes in Boise City?
Get three written, itemised quotes covering identical scope and materials. A bid far below the others usually signals a reduced specification rather than better value.
Nearby markets
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