20×20 Steel Buildings

400 sq ft of enclosed, affordable space. Our most budget-friendly steel building size — perfect for 1-car garages, ATV storage, and backyard workshops. Delivered and installed across North Texas.

Start with Hearth financing, then plan your concrete slab or level pad separately. Free delivery and professional installation stay included once your site is ready.

20x20 steel garage building

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4.9★ Google rating from real North Texas buyers

Check our reviews before you buy. We are not hiding behind a form and a PO box.

Denton Showroom

8210 W University Dr, Denton, TX 76207

Wichita Falls Showroom

4390 Bonny Drive, Wichita Falls, TX 76302

Hearth financing available

Check your rate with no impact to your credit score

Compare lender options for a 20x20 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.

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 20×20 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 or level pad.

  • Customer provides the concrete slab or level pad 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 20×20 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.

What Fits in a 20×20 Metal Building?

With 400 square feet of clear-span interior space, a 20×20 steel building is compact but mighty. Here are the most common uses from our North Texas customers:

🚗

1-Car Garage

Fits one full-size vehicle with room for basic tool storage along the walls.

🏍️

ATV / UTV Storage

Perfect for storing ATVs, side-by-sides, motorcycles, and riding gear out of the weather.

🔧

Small Workshop

A dedicated space for small projects, repairs, and hobbies without taking over the house.

🏠

Backyard Shop

A compact backyard building for tools, lawn equipment, seasonal storage, and more.

20×20 Steel Building Pricing

Starting from $5,500 to $9,000

Base price for a 20×20 enclosed steel garage. Final cost depends on your specific configuration.

Building price includes free delivery and professional installation. Customer-provided site prep, slab, pad, foundation, permits, and utility work are separate.

Factors That Affect Your Price

Sidewall Height

Taller walls (10') add $500 to $1,000

Lean-To Additions

Adds $1,500 to $3,000 depending on size

Rollup Doors

Size and quantity affect pricing

Walk-In Doors

Standard and custom sizes available

Insulation

Spray foam or batt insulation options

Windows & Trim

Custom colors and placements

Hearth financing + foundation planning

Start with Hearth to compare monthly payment options without a hard credit hit, then budget your slab or pad separately. Your building price still includes free delivery and professional installation once the site is ready.

Customization Options for Your 20×20 Building

Every building we install is built to your specifications. Choose from a wide range of options to create the perfect 20×20 steel building for your property.

Rollup Doors

Available in sizes from 8x8 to 10x10. Perfect for vehicle access and equipment storage.

Walk-In Doors

3-foot standard or custom width. Add them on any wall for convenient entry.

Windows

30x30 and 36x36 windows available. Add natural light to your workspace or garage.

Lean-To Additions

Extend your covered area with an open lean-to for additional parking or storage.

Wainscot Panels

Two-tone color options with a wainscot panel on the lower portion of the walls for a premium look.

Insulation

Keep your building comfortable year-round with insulation packages for walls and roof.

Foundation Requirements for a 20×20 Steel Building

A proper foundation is critical for the longevity and performance of your steel building. The customer is responsible for the slab or pad, and we provide install specs before your concrete crew starts. Here is what we recommend for all 20×20 installations:

  • 12" x 12" Perimeter Footer

    Standard requirement for buildings under 32 feet wide. Provides a solid anchor point for the base rails.

  • 4" Concrete Slab Minimum

    A 4-inch reinforced concrete slab provides a level, durable floor for vehicles, equipment, and foot traffic.

  • Level and Square

    Your pad must be level within 1 inch across the full 20x20 footprint for proper installation.

Need help with your foundation? We can connect you with local concrete contractors in the Denton and Wichita Falls areas, but the slab or pad is still customer-provided before we deliver and install the building. Contact us for recommendations.

Permit-Ready Specs for Your 20x20 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 400 sq ft structure used for storage, workshop, or small garage typically requires a permit — here is exactly what your local building department will ask for.

ASCE 7-22 Design Parameters

  • Design Wind Speed140 MPH (3-sec gust, ASCE 7-22)
  • Exposure CategoryB (typical North Texas sites)
  • Risk CategoryII
  • Ground Snow Load20 psf (Infinity standard)
  • FoundationPer engineered drawings

How to Get Your ASCE Report

  1. 1Visit ascehazardtool.org
  2. 2Enter your site address
  3. 3Select Risk Category II
  4. 4Download wind/snow parameters
  5. 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 →

Frequently Asked Questions About 20×20 Steel Buildings

How much does a 20x20 metal building cost?

A 20x20 metal building typically ranges from $5,500 to $9,000 for a standard enclosed garage with 8–10 foot sidewalls. Start with Hearth financing to compare monthly payment options, then budget your slab or level pad separately. Free delivery and professional installation stay included in the building price. Contact us for a free personalized quote.

What is a 20x20 metal building used for?

A 20x20 steel building provides 400 square feet of usable space, making it ideal for a 1-car garage, ATV or side-by-side storage, a small workshop, or a backyard shop. It is our most affordable fully enclosed steel building size.

Do I need a concrete slab for a 20x20 steel building?

Yes, we recommend a minimum 4-inch concrete slab with a 12x12-inch perimeter footer for all 20x20 steel buildings. This provides a level, stable foundation that protects your investment and ensures proper drainage.

How tall can a 20x20 metal building be?

Standard sidewall heights for a 20x20 building range from 8 to 12 feet. The most popular option is 10-foot sidewalls. This provides enough clearance for most vehicles, ATVs, and workshop equipment.

Can I add a lean-to to a 20x20 building?

Yes, lean-to additions are available on 20x20 buildings. A lean-to typically adds $1,500 to $3,000 and can serve as covered parking for a second vehicle, lawn equipment, or a shaded work area.

Do you offer financing on 20x20 steel buildings?

Yes. Most built-on-site steel buildings are financed through Hearth, where you can compare monthly payment options from multiple lenders with a soft credit check. Plan your slab or pad separately because site prep and concrete are customer-provided. Visit our showrooms in Denton or Wichita Falls, or call us at (940) 320-9377 (Denton) · (940) 249-5015 (WF) for financing details.

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.

Serving North Texas Within 100 Miles of Our Locations

We deliver and professionally install 20×20 steel buildings within 100 miles of our Denton and Wichita Falls showrooms. That includes the DFW metroplex, Gainesville, Sherman, Mineral Wells, Graham, Weatherford, and surrounding communities.

Ready to Build Your 20×20?

Whether you need a garage, workshop, or backyard shop, we will help you design the perfect 20×20 steel building for your property. Free quotes, white glove installation, and local support from our North Texas team.

Locally Owned Since 2016
2,000+ North Texas Families Served
BBB Accredited Business
4.9★ Google Reviews
Licensed & Insured
Free Delivery Within 50 Miles