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30×40 Detached Garage Cost in New Mexico (2026)
A 30×40 detached garage in New Mexico costs about $53,651 turnkey in 2026 ($44.71 per sq. ft.). Here's the itemized breakdown of materials, site prep and labor, using local crew rates.
Estimate only. Actual prices vary. No guarantee or warranty. Use as a guide only. Read the full disclaimer
Itemized cost breakdown
| # | Item | Quantity | Installed |
|---|---|---|---|
| 1 | Site grading & padClear, level & compact the building pad | 1,496 sq ft | $1,736 |
| 2 | 4" slab with thickened-edge footing3,000 PSI concrete, rebar, vapor barrier, forms | 21.4 cu yd | $8,372 |
| 3 | 2×6 wall framing & sheathing129 studs, treated plates, headers, 7/16" OSB | 129 studs + 48 sheets | $8,155 |
| 4 | Roof trusses & roof sheathing21 trusses at 24" on center, 6/12 pitch, OSB decking | 21 trusses + 47 sheets | $8,263 |
| 5 | Architectural shingles & lap siding30-yr shingles, synthetic underlayment, engineered-wood lap siding & trim | 15.0 squares + 1,513 sq ft | $14,180 |
| 6 | Garage & entry doorsDetails in the spec sheet | 🔒 Included in $19 spec sheet | $8,813 |
| 7 | Basic electricalDetails in the spec sheet | 🔒 Included in $19 spec sheet | $2,478 |
| 8 | Permit, nails/hardware & dumpsterDetails in the spec sheet | 🔒 Included in $19 spec sheet | $1,654 |
| Turnkey total | $53,651 |
Prices use 2026 material costs and typical local crew rates. Site work, custom options and material price swings can move your final price.
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How much does a 30×40 Detached Garage cost in New Mexico?
About $53,651 fully built by a local crew in 2026, or roughly $21,322 for the materials kit alone. Most fair bids land between $49,359 and $59,016.
What drives the price up or down?
Site prep (slope, soil, driveway access), floor choice, doors and insulation, and local labor rates. Lumber and steel prices also move a few percent a year.
Do I need a permit?
Most counties require a building permit for structures over 200 sq ft. Call your county building department with your size and location before you order materials.
How do I make sure I'm getting a fair quote?
Get at least 3 itemized bids for the same spec. Compare them line by line against this breakdown and ask about anything far above or below it.
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