How much does it cost to build a 100-unit self-storage facility?

The structural cost for a pre-engineered steel 100-unit mini-storage building kit typically ranges from $45,000 to $280,000 depending on the exact unit mix sizes, total square footage footprint, climate control selections, and localized engineering engineering load criteria.

Is a 100-unit storage building investment profitable?

Yes. Pre-engineered steel storage buildings are low-maintenance and offer an exceptionally high return on investment (ROI). With steady demand across consumer markets, facility layouts utilizing high-density unit mixes can rapidly generate predictable monthly cash flow and strong asset equity.

2026 COST ANALYSIS UPDATED

Cost to Build 100 Self-Storage Units in 2026

100-unit builds require precise logistics. Beyond the $10.00/sq ft average, we help you navigate site-specific engineering and ROI optimization.

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45+ Year Warranty

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44 Years in Business

⭐⭐⭐⭐⭐ Google rating score: 4.9 of 5, based on 30 reviews

Avg. Material Cost

$10.00 – $12.00 /sq ft

ROI Potential

11% – 16% Annual

Build Time

3 – 6 Months

Projects Completed

5,000+ Nationwide

Understanding the Investment

Building 100 units is a significant venture. The final price tag depends heavily on complexity, location, and materials. Here are the primary drivers.

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Material Costs

Steel pricing varies depending on the supplier, but material cost remains one of the primary drivers of your total project investment. At Mini Storage Outlet, Regency Storage Systems buildings start at $10.00 per sq. ft. for standard storage units, $12.00 per sq. ft. for RV storage buildings, and $14.00 per sq. ft. for climate-controlled storage.

✓Primary steel framing package
✓Roll-up doors included
✓Insulation and upgrade options available

Construction & Labor

Erection and labor costs vary by region, contractor availability, and site conditions. Concrete slab work and foundation preparation are major components separate from the steel package and can significantly influence your overall construction budget.

✓Foundation and slab pouring
✓Steel building assembly labor
✓Electrical, lighting, and site utilities

Land & Site Prep

Before construction begins, land development expenses must be factored into your total project cost. Grading, drainage, zoning requirements, and permitting fees often represent some of the most variable expenses in a self-storage development.

✓Land acquisition and surveying
✓Excavation and site grading
✓Permitting and zoning approvals

Estimated Costs for 100 Units

Below is a breakdown for three common unit mix scenarios. These estimates include the steel building package (framing, roofing, walls, doors).

100 Large Units (10’x20′)

Best ROI

Total Area: 20,000 sq ft

$120K – $280K

Estimated Material Cost

100 Medium Units (10’x10′)

100 Small Units (5’x10′)

Total Area: 5,000 sq ft

$30K – $70K

Estimated Material Cost

Cost Distribution Analysis

Note: These figures are estimates for materials only. Foundation, erection labor, and land costs are separate. Contact us for a comprehensive quote.

Design & Quote

We help you optimize unit mix and provide a firm material quote.

Engineering

Stamped blueprints provided for your local permitting process.

Delivery

Materials shipped directly to your job site, ready for assembly.

Construction

Erect your building using our network of recommended contractors.

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Fill out the form below to get a custom quote for your mini storage project. Our experts will analyze your needs and provide a detailed estimate.

Why Choose Us?

Factory Direct PricingNo middleman markups. You buy directly from the source.
Fast TurnaroundGet your quote in 24–48 hours and materials in weeks, not months.
44+ Years ExperienceWe’ve supplied over 10,000 buildings worldwide.

Luke Godirt

I purchased a mini storage unit building and built it myself. Everything went smother than I expected, all materials were present and extras of everything where shipped, even organized very well. Everything was cut accurately and designed to be easily assembled. Detailed plans and drawings were easy to understand. Regency definitely has a quality building and stick to a schedule. Ryan was able to answer all my questions quickly and walk me through the ordering process. I have never built a steel building and didn't have to ask any questions throughout the construction process which speaks to drawings supplied and materials used. Thank you for a good experience Regency!

Kyle Arbogast

We purchased three 2000sqft storage unit buildings from Regency, and it was a great decision to use them. Our salesman, Ryan Tannenbaum was very knowledgeable/helpful, and was always quick to respond. Regency was able to get us everything we needed in a very good time frame, including the roll up doors! This is during a time when new units in our area where sitting unfinished because they couldn't get the roll up doors. I am very very pleased with my whole Regency experience!

Jessica Devolin

We were so pleased with our experience with Regency Steel Buildings. Dillon was a wonderful sales rep and went above our expectations to make sure we got exactly what we wanted! Will definitely recommend!

Philip Landers

Jeremy and his crew were fantastic; everything was done on schedule, and exactly as the plans were drawn up. If I ever decide to add units to my mini-storage business, I will be calling Regency.

Burke Pelton

Very good company to work with. Everything went really great from the sale to receiveing the building. Building was exactly what I ordered and everything fit together perfectly.

Steve Thompson

Buildings were delivered as scheduled and we are very happy with the quality of the storage buildings we received. There were even extra parts and materials!!

Doug Ricke

I had only been in the storage business for about a year before I decided it was time to add on. Called Regency and talked to Jeremy, he was great help. Since this was my first new building he had all the answers. Sent me some drawings, a quote an we placed an order. Contractor really liked the plans an the building quality. If I expand again I'll use regency again.

jerry lamar

My experience with Regency has been real good! The buildings are good quality and fit together real good. The staff is super helpful. Thats why I have another building arriving day after tomorrow!

Athena Corulli

In 2019 I worked with “Jeremy” at Regency Steel Building Supply. He was very beneficial from the start and throughout the process. Once he was provided with my site plan and building request he quickly responded with building designs for my project. Do to the slope of my work site I had to change all of the building’s designs. Jeremy again responding in a timely manner, working with my architect, engineer and myself to come up with a set of prints that were perfect for my site. Once the plans were approved, Regency shipped on time and had the entire package onsite ahead of schedule and without damage. During construction I had an issue with one of the roll up doors. One of the tensioners that hold the door in place failed. I called Jeremy and he went to work contacting the door manufacture and getting a replacement part without holding up my contractor. In short I was very happy with Regency Steel Building/Mini Storage Outlet. The price with right, the service was excellent, and the follow-up made my entire project run smoothly. Doug Corulli Owner/Manager Easy Street Storage