Metal building kits vs. a builder
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A kit price looks low because it’s only the structure. Before you order, price everything the kit doesn’t include.
What a kit is
A kit is the steel or post-frame structure delivered to your site: frame, panels, trim and fasteners, sometimes doors. HomeAdvisor says a metal home kit covers the basic structure but doesn’t include the finishing touches. Somebody still has to pour the slab, stand the frame, and turn the shell into a usable building.
| Piece | National figure (HomeAdvisor) | In a kit? |
|---|---|---|
| Metal home kit | $20,000 to $90,000 | Yes |
| Assembly (erection) | $25,000 to $50,000 | Usually not |
| Additional services (finish-out, systems) | $30,000 to $85,000 | No |
| Foundation (barndo guide) | $4,000 to $12,500 | No |
| Septic tank (barndo guide) | $2,000 to $9,500 | No |
| Finishing the lot | $1,000 to $30,000 | No |
HomeAdvisor’s metal home guide (updated Jun 17, 2026) adds that its kit per-square-foot figure assumes the land is prepared, the foundation poured and utilities arranged. If they aren’t, it puts a kit home at $50 to $120 per square foot and a custom home at $150 to $170. National figures; local prices vary.
A kit can make sense when
- It’s a simple shop or storage building with no plumbing
- You already have an erection crew and a slab contractor lined up
- You or someone in the family has done this before
- You have time to manage deliveries, inspections and subs
A turnkey builder often makes sense when
- It’s a home or has living quarters
- You have a full-time job and can’t run a job site
- A lender wants one contractor responsible for the whole build
- You want one warranty instead of four
If you already have a kit quote
Get the slab and the erection priced before you order the kit. Ask the erection crew to review the kit drawings, because the anchor bolt plan, door framing and building size all affect their price. Confirm who unloads the delivery, where it’s stored, and who checks the shipment against the packing list. A missing bundle discovered after the crane leaves is an expensive day.
Also ask the kit seller what the wind and snow loads on the drawings are, and whether the drawings carry an engineer’s stamp. A lender, insurer or county inspector may ask.
Count the trips, too. Steel for a mid-size building often arrives on a flatbed semi, and the driver needs a firm, dry path to the slab. On sandy or low East Texas lots after a rain, that can mean a gravel drive before delivery day. Ask whether the price includes a forklift or crane for unloading, and who pays if the truck waits. Keep the steel covered and off the ground until it’s up; panels left wet in a stack can stain or start to rust.
When you call, tell us you have a kit. We’ll connect you with a builder who will quote the slab and erection, or the whole job, so you can compare.
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