7 Common Mistakes People Make When Buying a Steel Building

Out-of-state kit dealers quote California buildings using generic engineering. When the drawings hit California plan check, they're rejected. Re-engineering costs $8,000–$15,000 and adds 2–4 months.

Always confirm the engineer is California-licensed and the wind/seismic loads match your specific address.

A $2,500 soils report is the cheapest insurance in construction. Without one, you're guessing on foundation design — and California plan check will require one anyway for most buildings.

Owners who skip it usually pay 2–3x more in change orders when site conditions surprise them.

Going from 40x60 to 50x80 typically adds 20% to the total cost but gives you 67% more space. The marginal cost of "a little bigger" is always less than building a second structure later.

We strongly recommend buying at least 20% more space than you think you need.

The foundation is 10–15% of the project cost and 100% of the structural integrity. Thin slabs, missing rebar, undersized footings, and skipped vapor barriers are the most common — and most expensive — mistakes.

Unlicensed crews can't pull permits, void manufacturer warranties, and leave you personally liable for any worker injuries. The "savings" disappear the first time something goes wrong.

Always verify CSLB license status and ask for current certificates of insurance and worker's compensation.

Permits in California take 4–16 weeks. Owners who plan a 90-day project from contract to occupancy are nearly always disappointed. Build a realistic timeline that accounts for plan check, corrections, and inspection scheduling.

If one bid is 30%+ below the others, something is wrong. Either the steel weight is lower than spec, the bracing is being skipped, or the contractor plans to hit you with change orders.

Compare bids line-by-line. The middle bid from a reputable contractor is almost always the right answer.