Hail dents panels, wind pulls on doors, and a roof that looked fine in spring leaks at a fastener by July. Those are the three complaints we hear about metal buildings in Oklahoma, and none of them is about steel itself. They come from specification choices: panel gauge, roof type, door rating, trim detail and who did the installation. A pre-engineered metal building is a very good product when those choices are made on purpose.
Here is how the system works. A manufacturer engineers the primary frame, the secondary framing, the roof and wall panels and the trim to your size, loads and options, and ships it as a kit. The contractor pours the foundation, erects the frame, hangs the panels, sets the doors, and handles everything the kit does not include, which is a lot. We do that whole sequence as design-build, so there is one party responsible from the drawing to the final inspection.
Shop, hangar and agribusiness owners like the system because it is fast, predictable and easy to price. The clear span lets them place equipment where they want, the building can be extended, and the cost per square foot is usually lower than for site-built alternatives. The things to watch are the ones that sit outside the kit: the slab, the permit, the insulation and the weathertightness at every penetration.
We begin with your use, not with a catalog. What goes in the building, how big are the largest pieces of equipment, how do trucks and people get in, what must be kept dry or warm, and what might change in five years. From the answers, we pick span, eave height, bay spacing, roof pitch and door locations. Then we get a written quote that lists what is included and what is not, so you can compare us with another builder fairly.
Design-build means we manage the engineer, the foundation design, the permit, the erection and the finish work as one package. If something does not fit, we find out before the steel is ordered. Our metal building design-build page describes the process step by step, and the pre-engineered metal buildings page covers the kit itself.
The kit typically includes primary frames, purlins and girts, roof and wall panels, fasteners, trim, and standard doors and windows if you order them. It does not include the foundation, anchor bolts in some cases, concrete, insulation (often a separate line), electrical, plumbing, mechanical, interior walls, site work or erection labor. Those are the places where quotes diverge. A low kit price paired with a long list of exclusions is not low.
Our scope covers the kit and the items around it. We design the slab and footings to the frame reactions, set anchor bolts to a template, erect the steel, install panels and trim, and add insulation, doors and finishes. If you need something special such as a clerestory, a crane runway, a canopy or a mezzanine, we add it to the frame design at the start. Foundations are covered in our page on anchor bolts and foundations.
Oklahoma sits where tornadoes are a regular topic. The National Weather Service Norman office's table shows 4,518 tornadoes in the state from 1950 to the present, an average of 59.4 per year, with May the peak month at 1,851 events and 2024 the busiest year with 152. A pre-engineered building is designed to the wind speed and exposure the local code requires, which protects against straight-line winds and normal storms but is not a storm shelter.
The weak points are the openings and the connections. Large overhead doors, the end walls and the base connection all take stress in a high wind, so we pay attention to door ratings, girt spacing and the number and size of anchor bolts. If you want a safe room inside the building, that is a separate engineered structure with its own standards. On crews, our erection safety includes bracing every frame as it goes up and stopping work when a storm approaches.
Metal buildings are quick once the steel arrives, but the front end matters. Drawings and permit review take weeks in a city and sometimes less in rural areas. The state has adopted the International Building Code, while some cities list the edition, so we confirm which one your permit falls under. Oklahoma City lists IBC with local supplements, Edmond has adopted the ICC family, and Tulsa lists codes with updates pending.
After permit, the steel order and foundation work run in parallel. Erection of a mid-size building can take days to a few weeks, and the finish work, insulation, doors and electrical often take longer than the frame. We keep owners informed with a short weekly summary. Our warehouse and flex building pages show how that sequence plays out on common projects.
The same building can be priced very differently by two contractors. Look for the design loads used, the panel gauge, the roof system, the insulation, the doors, the foundation, site work, permits, and the erection method. Ask about the warranty on the panel finish and on workmanship, and ask who responds to a leak in year two. We put all of that on one page so you can line up bids.
Big cost levers are size, eave height, roof type, insulation and door count. A standing seam roof costs more up front but removes exposed fasteners and gives better water performance. Our standing seam metal roofing page explains the trade. Owners who want less cost can often cut it by simplifying the roof line, choosing standard bay sizes and delaying interior finishes. We say so, even when it makes our quote smaller.
Tell us the use, size and location. We will send a budget that names what is included, what is not and which decisions will move the number, so you can compare it with any other proposal.
The Construction Industries Board says general contractors are not currently required to hold a state license for general contracting, but electrical, mechanical, plumbing and roofing work needs licensed trades. Ask any builder who holds those licenses on your project.
Yes. Options include blanket insulation, rigid board, spray foam and insulated metal panels, and each has a different cost, R-value and condensation behavior. We discuss the choice by use. See insulated metal panels for the heavier option.
With a good finish, proper maintenance and no major damage, a steel building can serve for a long time. The parts to watch are fasteners, sealants and roof penetrations. Regular inspection is cheap compared with repair.
Local zoning and code decide. Some jurisdictions allow it and some restrict it. We check with the planning department before we draw.
Panel gauge, roof type and impact rating influence how a roof behaves in hail, and insurers may have preferences. We discuss the options by site and use, and we do not promise a roof is hail-proof.
Tell us about the site, the building and the schedule, and we will set up a review of scope, schedule and permitting.
See the services, building types and industries we plan and manage across Oklahoma.