A 45,000 sq. ft. regional-scale building, available with interior columns or as a full clearspan. From $345,872 in Georgia or $387,369 engineered for Florida’s 150 mph wind zone, with two interior columns.
At 45,000 sq. ft., the 150 feet x 300 feet steel building is regional-scale infrastructure: a distribution hub, a full production plant, or a covered arena complex under a single engineered roof. Like the 150×200 it comes two ways: economical twin interior columns, or full 150-foot clearspan for uses that need the whole floor open.
Buildings at this scale are exactly why MBMI keeps engineering in-house: the frame is designed to your site’s actual wind and snow loads, drawings are formatted for commercial review, and one team answers for the project from quote through the final truck.
| Footprint | 150′ x 300′ |
|---|---|
| Floor area | 45,000 sq. ft. |
| Framing | Two interior columns (full clearspan available) |
| Example spec | 16′ eave, 2:12 roof pitch, Galvalume roof, one 12×12 overhead door, one walk door |
| Starting price, Georgia example (120 mph wind) | $345,872 |
| Starting price, Florida example (150 mph wind) | $387,369 |
| Full clearspan option | $383,345 Georgia / $419,353 Florida |
| Delivered example (building plus freight) | $362,372 Georgia / $418,869 Florida |
| Shipping | Ships on about seven trucks |
| Prices updated | September 2026 |
As of September 2026, a 150×300 MBMI building starts at $345,872 engineered for a typical Georgia site (IBC 21, 120 mph wind) and $387,369 engineered for a typical Florida site (FBC 23, 150 mph wind), with two interior columns; a full clearspan frame is available at a premium. The difference between the two examples is the engineering: the same footprint costs more where wind loads are higher, because the frame carries more steel.
Both example prices include the building kit with a 16-foot eave height, 2:12 roof pitch, Galvalume roof panels, one 12×12 overhead door, and one walk door, plus engineered drawings for your exact site. Freight is additional and varies by location (a 150×300 building ships on about seven trucks). As a delivered reference, the same example buildings land at $362,372 including freight to a central Georgia site and $418,869 to a central Florida site. For the exact number on your site, get a real quote in minutes.
A 150×300 project succeeds on sequencing: foundation design from MBMI’s reactions, utility rough-ins planned against the frame lines, and freight arriving in erection order. MBMI supplies anchor-bolt placement drawings for your concrete contractor and coordinates the roughly seven-truck delivery with your erector. The industrial manufacturing page shows how operations lay out at this scale.
With two interior columns, a 150×300 MBMI kit starts at $345,872 engineered for a typical Georgia site and $387,369 for a typical Florida site; full clearspan runs roughly 8 to 10 percent more. Engineered drawings and standard doors are included, freight is additional and quoted per location.
On total project cost, pre-engineered steel is typically faster and less expensive than tilt-up at this footprint, with a shorter path from permit to occupancy. On large projects the schedule advantage often matters more than the material savings; run both numbers with real quotes before deciding.
As a standard commercial submittal with stamped engineering. MBMI drawings are engineered to your jurisdiction\u2019s code edition and load tables, which is what plan reviewers check first on large buildings. Your local engineer of record handles the foundation package from MBMI\u2019s frame reactions.
Yes. Some buyers build 150×200 now with the endwall detailed for expansion, adding the remaining 100 feet when volume justifies it. Designing the phase-two intention into the original engineering keeps the expansion seamless and avoids reworking the endwall structure.