How long does a metal building take to build in San Antonio?

Pad and slab: 1–2 weeks. Steel delivery and erection: 1–3 weeks once on site. Doors, trim, gutters: 1 week. Total turn-key: roughly 6–10 weeks from contract to keys for a standard shop. Barndominium shells run 8–14 weeks; full interior finish-out adds 8–16 weeks more.

Do you handle the slab and pad too?

Yes. Most metal-building suppliers sell you the kit and walk away. F-I-X does the full turn-key — pad with compaction testing, engineered slab with anchor bolts to spec, building erection, doors, gutters, and rough-in coordination. One contract, one schedule, one number to call.

Can I finish out a barndo myself?

Yes — many of our barndo clients DIY drywall, paint, and flooring after we deliver the shell with rough-ins in place. We can also hand off to a finish builder or coordinate it for you. We'll talk through the right approach for your build.

Do I need a permit for a metal building in Texas?

Inside Bexar County and most surrounding counties, yes — usually with engineered drawings stamped by a Texas PE. Out in unincorporated areas the rules vary. We confirm before quoting and pull the permit on every build that needs one.

Metal Buildings overview

San Antonio cost guide · Updated 2025

How much does a metal building cost in San Antonio?

In 2025, a turn-key red-iron metal shop in San Antonio runs $35–$60 per square foot — about $42,000–$72,000 for a standard 30×40 shop. Barndominium shells (insulated, ready for interior finish-out) run $55–$90 per sq ft. Post-frame storage buildings run $20–$35 per sq ft. Turn-key pricing covers the engineered pad, slab, building erection, roll-up and walk doors, gutters, and rough-in coordination.

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Typical San Antonio pricing

Option	Typical range
Red-iron shop, turn-key (30×40 to 50×80) Most common workshop build	$35 – $60 / sq ft
Barndominium shell, turn-key Insulated, ready for interior finish	$55 – $90 / sq ft
Post-frame storage / hay barn No insulation, no slab	$20 – $35 / sq ft
Engineered slab only Anchor bolts placed to spec	$8 – $14 / sq ft
Roll-up door (12×14 RV size) Each, installed	$1,800 – $3,400

Ranges are for jobs in the San Antonio / Texas Hill Country market as of 2025. Every F-I-X quote is written, line-itemed, and free.

Real-world examples

30×40 turn-key shop (1,200 sq ft)

$42,000 – $72,000

Red iron, 12 ft eave, slab, 1 walk + 1 10×10 roll-up, gutters, trim. No insulation.

40×60 barndo shell (2,400 sq ft)

$132,000 – $216,000

Red iron, 12 ft eave, insulated walls + spray-foam roof, plumbing/electrical rough-in coordinated.

30×40 post-frame storage

$24,000 – $42,000

Wood column, metal cladding, gravel floor, 1 roll-up, 1 walk door. No slab, no insulation.

What moves the price

Red iron vs. post-frame

Red-iron (welded steel I-beam) is the heavy-duty choice — 50+ year life, wide clear spans, and the standard for any building you'll put living space in. Post-frame (pole barn) costs 30–50% less but is best for hay barns, equipment cover, and basic storage — not workshops or barndos.

Eave height

10 ft works for living space and light shops. 12 ft for trucks and standard RVs. 14–16 ft for car lifts or RVs with rooftop AC. Going up an eave height runs roughly $4–$8/sq ft more — spec it once, right, before the slab is poured.

Insulation and climate control

Spray foam on the underside of the roof deck adds ~$3–$6/sq ft but keeps a Texas shop usable in July and August. Mini-split HVAC for a 30×40 shop runs $4,000–$7,500. Barndominium shells include wall insulation as standard.

Doors, windows, and openings

Standard quote includes 1 walk door and 1 roll-up. Additional doors: 8×8 roll-up $1,000–$1,500, 10×10 $1,400–$2,000, 12×14 (RV) $1,800–$3,400. Windows $300–$700 each. Each opening adds engineering and trim labor.

Permits and engineering

Most Texas counties require engineered drawings stamped by a PE for any building over a certain size. The building supplier provides them as part of the kit. We pull the permit, schedule inspections, and hand you the closed-out paperwork.

Common questions

How long does a metal building take to build in San Antonio?: Pad and slab: 1–2 weeks. Steel delivery and erection: 1–3 weeks once on site. Doors, trim, gutters: 1 week. Total turn-key: roughly 6–10 weeks from contract to keys for a standard shop. Barndominium shells run 8–14 weeks; full interior finish-out adds 8–16 weeks more.
Do you handle the slab and pad too?: Yes. Most metal-building suppliers sell you the kit and walk away. F-I-X does the full turn-key — pad with compaction testing, engineered slab with anchor bolts to spec, building erection, doors, gutters, and rough-in coordination. One contract, one schedule, one number to call.
Can I finish out a barndo myself?: Yes — many of our barndo clients DIY drywall, paint, and flooring after we deliver the shell with rough-ins in place. We can also hand off to a finish builder or coordinate it for you. We'll talk through the right approach for your build.
Do I need a permit for a metal building in Texas?: Inside Bexar County and most surrounding counties, yes — usually with engineered drawings stamped by a Texas PE. Out in unincorporated areas the rules vary. We confirm before quoting and pull the permit on every build that needs one.

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