How much does a 30x40 steel building cost?

A 30x40 steel building starts around $14,000 to $22,000 depending on your doors, windows, insulation, height, and other options. Start with Hearth financing to compare monthly payment options, then budget your concrete slab, site prep, and permit costs separately. Free delivery and professional installation stay included in the building price.

What foundation does a 30x40 need?

At this size, we strongly recommend a concrete slab. The slab is the customer's responsibility, but we can connect you with local contractors who do this work regularly.

Do I need a permit for a 30x40?

Yes. A building this size will require a permit in most areas. Check with your local building department before ordering. We can help you understand what is needed.

Do you offer financing on a 30x40 steel building?

Yes. We lead with Hearth financing on 30x40 steel buildings so you can compare monthly payment options before finalizing the build. Your concrete slab, grading, permits, and utility work are customer-provided and should be budgeted separately.

How long does it take to build a 30x40?

Plan on 6 to 10 weeks from order to completed installation. The actual build usually takes 1 to 2 days on site. Custom options and weather can affect the timeline.

Can I use a 30x40 for a commercial shop?

Absolutely. Many of our 30x40 buildings are used as auto shops, welding shops, retail space, and small warehouses. We can build to commercial code requirements.

Can I store an RV or boat in a 30x40?

Yes. A 30x40 with tall walls (12 to 14 feet) gives you plenty of room for RVs, boats, and other large items. We can add extra-tall roll-up doors to fit your needs.

Can I add a lean-to to my 30x40?

Yes. Lean-tos are a popular add-on for covered parking, equipment storage, or extra workspace. We can add one to either side of the building.

How does a 30x40 compare to a 24x30?

A 30x40 gives you 1,200 square feet compared to 720 in a 24x30. That is 67% more space. If you are on the fence, most people wish they had gone bigger.

140 MPH Certified · Free Delivery & Install

30×40 Steel Buildings — From $14,000

1,200 sq ft of clear-span space for workshops, barns, boat storage, and commercial shops. Hearth financing available — compare monthly payments, then budget your slab separately. Free delivery and professional installation included.

Design Your 30×40 in 3D Call for a Free Quote

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Denton Showroom

8210 W University Dr, Denton, TX 76207

(940) 320-9377

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Wichita Falls Showroom

4390 Bonny Drive, Wichita Falls, TX 76302

(940) 249-5015

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Hearth financing available

Check your rate with no impact to your credit score

Compare lender options for a 30x40 steel building through Hearth with one application. Hearth Concierge gives you a real person to help with lender paperwork and next steps if you decide to move forward.

Building delivery and professional installation stay included. Site prep, concrete, pads, permits, and utility work are still customer-provided and should be budgeted separately.

Check Your Rate with Hearth See financing details

Financing offers, rates, and terms vary by lender, credit profile, and project details.

Financing is provided by third-party lenders through Hearth, a licensed broker (NMLS # 1628533). Hearth does not make loans or credit decisions.

Check your financing options with Hearth

Finance your 30x40 steel building with Hearth first

Hearth is the primary financing path we now lead with for steel buildings and other larger qualifying projects.

We keep this simple and honest: promotional financing depends on lender, credit profile, and project details. Good fit does not mean guaranteed approval.

Soft-pull rate check before you decide whether to move forward
Qualified buyers may see promotional financing options from participating lenders
Hearth Concierge follows up with a real person for lender steps and documents
Site prep, concrete, permits, and utilities should stay in a separate project budget

Check Your Rate with Hearth

Financing is provided by third-party lenders through Hearth, a licensed broker (NMLS # 1628533). Hearth does not make loans or credit decisions.

All loans are subject to credit approval. Rates and terms vary by lender and creditworthiness. Checking your rate will not affect your credit score.

If you use a Hearth application or widget on our site, please review our Privacy Policy and Hearth's Privacy Policy.

Foundation-first planning

Get financing lined up first, then match your building quote to the right site-prep budget. We handle the building delivery and professional installation. You handle the concrete slab.

Customer provides the concrete slab before install day
We provide layout, anchoring, and foundation specs before your concrete or pad crew starts
Free delivery and professional installation stay included in the building price
Pricing and monthly payment planning should always account for site prep, concrete, and permit costs

Site prep is separate

Concrete, gravel, grading, retaining, and drainage are not bundled into the base building price.

Install stays included

Once your site is ready to spec, our crew delivers and installs the building at no extra charge inside our service area.

Monthly payment planning

See what your 30x40 steel building could look like as a monthly payment

Check payment options with Hearth, compare lender offers with one application, and see what monthly payment planning could look like for your project.

This is not just rate shopping. Hearth Concierge follows up with a real person who can help you finish the application and walk through lender document steps if you want to move forward.

Budget the building first, then keep site prep, concrete, permits, and utilities as separate line items.

Financing is provided by third-party lenders through Hearth, a licensed broker (NMLS # 1628533). Hearth does not make loans or credit decisions.

All loans are subject to credit approval. Rates and terms vary by lender and creditworthiness. Checking your rate will not affect your credit score.

If you use a Hearth application or widget on our site, please review our Privacy Policy and Hearth's Privacy Policy.

Check your rate with Hearth

What Fits in a 30x40?

1,200 square feet changes the game. This is not a hobby space. It is a real building for real work.

Ranch Equipment

Tractors, implements, hay, and feed. Keep your equipment out of the weather and ready to go.

Boat & RV Storage

Tall walls and wide doors fit full-size RVs and boats. No more paying for off-site storage.

Full Workshop

1,200 square feet gives you room for a serious shop. Welding, woodworking, auto repair, you name it.

Commercial Space

Auto shops, retail, warehouses, and more. Built to code for your business.

Ag Storage

Feed, seed, tools, and equipment. A 30x40 is the workhorse of North Texas ranches.

30x40 Cost Breakdown

Base building pricing includes free delivery and professional installation. Your slab, grading, permits, and utility work should be budgeted separately before you lock in the final monthly payment.

Base 30x40 steel building$14,000 - $18,000

Roll-up doors (12x12 each)Included in base

Walk door (3x7)Included in base

Extra height (12-14 ft walls)$1,000 - $3,000

Windows (optional)$200 - $400 each

Insulation package$1,500 - $3,000

Lean-to (optional)$3,000 - $6,000

Concrete slab (customer responsibility)$5,000 - $9,000*

Delivery & installationFREE

*Concrete pricing varies by contractor and site conditions. We recommend getting quotes from 2-3 local contractors.

Popular 30x40 Configurations

2 Large Roll-Up Doors + Walk Door

Two 12x12 roll-up doors for drive-through access. Plus a 3x7 walk door. The go-to setup for shops and barns.

Extra Tall for RV/Boat Storage

14-foot walls with a 12x12 roll-up door. Pull in your RV or boat without a second thought.

Workshop with Lean-To

Enclosed workshop on one side, open lean-to on the other for covered parking or equipment.

30x40 Specifications

Width30 feet

Length40 feet

Total Area1,200 square feet

Ceiling Height8 to 20 feet (your choice)

Wind Rating140 MPH certified

Snow Load30 PSF standard

Steel Gauge14 gauge or 12 gauge

Warranty29ga: 30-year rust-thru (10-year warranty) | 26ga: 40-year rust-thru (20-year warranty)

30x40 Gallery

Permit-Ready Specs for Your 30x40 Steel Building

Steel buildings in North Texas are engineered to ASCE 7-22 wind and snow load standards. Most jurisdictions require these parameters when you apply for a building permit. A 1,200 sq ft structure used for workshop, barn, or commercial storage typically requires a permit — here is exactly what your local building department will ask for.

ASCE 7-22 Design Parameters

Design Wind Speed — 140 MPH (3-sec gust, ASCE 7-22)
Exposure Category — B (typical North Texas sites)
Risk Category — II
Ground Snow Load — 20 psf (Infinity standard)
Foundation — Per engineered drawings

How to Get Your ASCE Report

1Visit ascehazardtool.org
2Enter your site address
3Select Risk Category II
4Download wind/snow parameters
5Share with us on your quote

Have your ASCE report? Send it with your quote request →

Start Your Quote

Permit & Wind Load FAQ

What wind speed do steel buildings in North Texas need to be rated for?

Most jurisdictions in North Texas require buildings rated for 130–140 MPH 3-second gust wind speed under ASCE 7-22. Our steel buildings are engineered to 140 MPH as standard, which meets or exceeds permit requirements for Wichita County, Denton County, and surrounding areas.

Do I need a snow load calculation for a steel building in North Texas?

While North Texas is technically in a 0 psf ground snow load zone per ASCE 7-22, our Infinity Carports steel buildings are engineered to 20 psf snow load as standard — well above the local minimum. This exceeds code requirements and gives your structure extra safety margin for unexpected ice or snow events.

What is Exposure Category B and does it apply to my property?

Exposure Category B is the default assumption for most North Texas residential and light commercial sites with normal neighborhood, suburban, and small-town obstructions. If your site sits in wide-open terrain with very few obstructions, ask your engineer or permit office whether Exposure C applies.

More questions? See our full permit requirements guide for Denton & Wichita Falls, TX →

30x40 Steel Building FAQ

Want a smaller portable building? Check out our portable sheds with free delivery.

24x30 steel building in suburban DFW backyard

Tighter Budget?

Compare: 24x30 Steel Building

30x40

1,200 sq ft, from $14,000

24x30

720 sq ft, from $8,500

The 24x30 is our most popular residential size. Great for a 2-car garage, workshop, or home gym. A smart choice if you do not need the extra space.

View 24x30 Guide

Going Even Bigger?

Our custom site-built program handles buildings from 40x60 all the way up to 60x100 and beyond. Permanent foundation, fully custom design.

Learn About Site-Built Buildings

Ready for Your 30x40?

Call today for a free quote. We will walk you through sizes, options, and pricing with zero pressure. Looking for something smaller? Check out our 24x30 steel building. We also offer financing options for every budget.

Denton: (940) 320-9377 Wichita Falls: (940) 249-5015

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