The standard, most common format in the industry — single-story, drive-up units with roll-up doors, simple access, and low operating costs. Engineered around the unit mix your market and pro forma call for.
A mini storage building is a single-story, drive-up self storage building — the standard, most common format in the industry. Rows of units with roll-up doors, simple drive-up access, and low operating costs. For first-time facility owners and developers expanding a portfolio, it's usually the most direct, fastest-to-revenue way into self storage. ROI engineers, manufactures, and delivers the pre-engineered steel building package; you build the facility around the unit mix your market and pro forma call for.
A quick note on terms: “pre-engineered metal building” (PEMB) is common buyer language, and it's accurate — modern systems are still engineered for your site, loads, dimensions, and local code. What you're buying is an engineered metal building system: primary frames, secondary framing, cladding, and bracing designed to work together, plus the roll-up doors and partitions that make it a storage facility.
Not sure which way your site leans? That's a layout conversation — send us the site and target unit mix and we'll help you compare.
ROI doesn't pour concrete or act as your on-site general contractor. Foundations, sitework, and erection are handled by your contractor. We're upfront about that scope because it keeps your budget honest.
The building decision and the revenue model are the same conversation. Bay dimensions, aisle widths, and the building footprint determine how many units of each size you can fit — which sets your net rentable square feet (NRSF) and unit mix, which sets what the facility earns. “Engineered around your pro forma, not the other way around” means we size the system to the mix you want to rent rather than forcing your mix into a generic box. Send us your target unit mix (or your market's demand) and the site, and we'll work the layout against it.
We don't publish a single cost-per-square-foot number, because an honest one doesn't exist without your project's details. As a starting point, standard mini storage building packages run about $10-12/sq ft (national average, building package only, excluding concrete and sitework). The drivers that move your number:
For the full line-item breakdown including erection and concrete ranges, see the pricing guide and what drives self-storage building cost. For a real number, send your dimensions.
Manufacturing lead time typically runs several weeks once drawings are approved, followed by delivery and field erection by your contractor. A realistic mini storage project — from order to operational — is commonly a few months, depending on sitework readiness, permitting, submittals, and install scope. We'll give you a project-specific timeline with your quote. Already own a building? A warehouse conversion can shorten the path further.
Send us your site and target unit mix and we'll work up a building that fits your pro forma — with a real price and timeline.
Tell us about your project and we'll send you a detailed quote with engineering specs, pricing breakdown, and estimated timeline. No obligation, no follow-up spam.
