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Pole Barn Framing & Erection Cost in Mobile, AL (2026)

Typical price for a 30×40×12 post-frame building on a 4-inch slab in Mobile, AL: about $40,081 installed. Use the free itemized estimate below to check contractor quotes.

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Materials-Only Kit
$16,289
Delivered lumber, trusses, metal panels & hardware
= Rows 3–7 below, materials only
Concrete Slab & Site Prep
$8,882
Grading, forms, rebar & poured concrete floor
= Rows 1–2 below, installed price
Turnkey Installed Total
$40,081
Complete build with a local licensed crew, materials & slab
= All rows below, installed price
A fair bid from a local builder in Mobile, AL should land between $36,875 and $44,089. Get 3 quotes, and if one is far outside this range, ask why.

Estimate only. Actual prices vary. No guarantee or warranty. Use as a guide only. Read the full disclaimer

Itemized cost breakdown

#ItemQuantityMaterialsLaborInstalled
1Site grading & building padLaser-leveled pad 2 ft past the walls, compacted fill1,496 sq ft$649$911$1,872
24" standard concrete slab3,500 PSI ready-mix, #4 rebar 18" grid, vapor barrier, forms15.9 cu yd$3,292$2,550$7,010
36×6 treated posts, girts & framing lumber18 posts × 16 ft (.60 CCA ground-contact), 2×6 girts, 2×8 treated skirt board18 posts + 980 lf$3,662$3,340$8,402
430' engineered roof trusses & purlins11 trusses at 4 ft on center, high-wind rated, 2×4 purlins11 trusses + 630 lf$3,489$1,943$6,518
529-ga metal roof & wall panels + trimPainted steel panels, ridge cap, corner/door/base trim, closures31.5 squares$4,243$1,832$7,290
6Overhead & walk doorsDetails in the spec sheet🔒 Included in $19 spec sheet$3,239$911$4,980
7Screws, hardware & condensation barrierDetails in the spec sheet🔒 Included in $19 spec sheet$1,656$364$2,424
8Permit, stamped drawings & deliveryDetails in the spec sheet🔒 Included in $19 spec sheet$1,321$0$1,585
Turnkey total$21,551$11,851$40,081
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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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Builder Spec Sheet & Shopping List

The same line items as this page in an editable Excel file and a PDF, each with a short spec, quantity, materials, labor and installed price. Plus a permit and site-prep checklist and a sheet for comparing 3 builder bids. 30-day money-back guarantee.

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Common questions

How much does pole barn framing & erection cost in Mobile, AL?

For a 30×40×12 post-frame building on a 4-inch slab, expect about $40,081 with a local pro in 2026. Fair quotes usually fall between $36,875 and $44,089.

Is this a free estimate template?

Yes. The breakdown on this page is free. The $19 Spec Pack puts these same line items in an editable Excel file and a PDF spec sheet you can hand to contractors, plus a permit checklist and a bid-comparison sheet.

How do I compare contractor quotes?

Ask each contractor to price the same scope, then compare their numbers line by line against this breakdown. A quote far below the range often leaves something out.

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