Pallets decide the floor plan before anyone draws a wall. A warehouse owner who can say how many positions, how high, which aisle width and how many dock doors is already halfway to an accurate price, and one who cannot usually gets three quotes that do not compare. We build steel warehouses across Oklahoma, and most of our first conversations are about racking and trucks, not about steel.
The frame is the easy part. A pre-engineered clear span with sidewall columns only at the ends gives you an open floor, and the building is sized in bays of 25 to 30 feet or whatever the lifts and the racking layout demand. What takes thought is everything around it: the slab that carries a loaded forklift, the apron where a tractor-trailer turns, the drainage that keeps the dock from becoming a pond, and the insulation that keeps the office from cooking in August.
Our job is to put those decisions on paper with numbers before steel is ordered, so the budget you approve is the building you get. If you are weighing a shell against a finished space, our page on warehouse metal shells walks through that line in more detail.
We start with the frame and the envelope: rigid frames, purlins, girts, wall and roof panels, trim, gutters, and the doors and windows the layout calls for. Eave height is the number that matters most, because it sets your cube. Racking vendors want a clear height under the lowest frame member, sprinkler designers want room above the top pallet, and the difference between 24 and 32 feet at the eave can be a larger swing in cost than any panel choice.
Then we add the pieces that make it a working warehouse. Dock doors with levelers or dock-height pits, a few drive-in doors at grade, man doors that meet egress counts, skylights or wall lights for daylight, and ventilation for the heat that builds under a steel roof. If you plan to add offices, a break room or a small mezzanine for records, we frame those inside the design from the start. See mezzanines and platforms for how that floor space is handled.
People ask for a price per square foot and we give them one, with the caution that it moves. Three things move it most. First, height and bay width, since heavier frames and longer clear spans use more steel. Second, the slab, which can rival the building in cost when a racking layout puts point loads on it. Third, site work, because a flat pad with utilities at the property line is cheap and a sloped lot with rock or poor fill is not.
Insulation is the fourth, and it is a choice, not a given. A plain warehouse for dry goods may only need a vapor-backed blanket and a liner on the lower wall for impact. A building with a conditioned office, a temperature-sensitive product or a cold-weather crew may justify more. We price the options side by side so you see the cost of each step up, and we point out when the extra money will not pay back.
Three interstates (I-35, I-40 and I-44) meet in Oklahoma, the state has more than 2,600 miles of Class I rail run by BNSF, Union Pacific and CPKC, and two international hubs, Will Rogers World Airport and Tulsa International Airport, handle the air side. That geography is why so many storage and cross-dock buildings are planned here, and why warehousing and distribution owners keep looking at the state. Buyers want to reach two coasts in a day or two of driving and keep land costs lower than in the big metros.
Look at what is already on the ground. In north Tulsa, the state commerce department describes Cherokee Industrial Park as more than 1,300 acres near U.S. 75, U.S. 169 and the Port of Catoosa, where a 1.3-million-square-foot distribution center was opened. In Chickasha, a 240-acre industrial park sits on I-44 where U.S. 81 and U.S. 62 meet, with rail service four times a day. Those are large, simple, repeating boxes, which is exactly what pre-engineered steel does well and what a well-run erection crew can build at pace.
Oklahoma has statewide minimum codes, but cities adopt their own editions and amendments. The state has adopted the International Building Code, while several large cities list their own edition, so the first call on any warehouse is to the local building department to confirm which one applies to your permit date. General contractors do not need a state license in Oklahoma, but electrical, mechanical, plumbing and roofing trades do, and we bring licensed trades to the job.
The National Weather Service tornado table for the state shows 4,518 events from 1950 to the present, with May as the busiest month. That does not mean every warehouse is built for a tornado, but it does mean wind-load and door-system choices deserve attention. Large overhead doors are the weak spot in a high wind, so we talk about door ratings, end-wall bracing and how the frame is designed for the local wind speed. Our anchor bolts and foundations work covers the connection to the slab that wind loads test.
A steel warehouse has three clocks. The first is design and permit review, which runs from a few weeks for a rural county to longer for a city with a full plan review. The second is the factory lead time on the frames and panels, which moves with the market and which we confirm at the order date, not at the first estimate. The third is the site clock: clearing, pad, footings, slab cure, erection, and the dock equipment that has its own delivery date.
The best schedule trick is overlapping the first two. We can submit for permit while the frames are in engineering, and we can start the pad while submittals are reviewed. Concrete is the item most likely to slip, so we plan slab pours around the weather and do not erect over a slab that has not cured enough for the equipment. For fast turn buyers, distribution center projects use the same order of operations with the dock count raised.
Send us the product, the pallet count, the clear height you want and the site address. We will come back with a plain budget range, the schedule steps and the questions that still need answers before a firm number.
Work backward from the top pallet. Add the beam height, the load, the clearance your sprinkler designer needs and a margin for the lift. Many warehouses land between 24 and 32 feet, but the right number comes from your layout. Going taller adds frame weight and wall area, so it is worth deciding on purpose.
Yes, if you plan for it. We leave an end wall that can be removed and designed with the extra bay in mind, which keeps the cost of the addition low. A sidewall expansion is harder because the frame is sized for the first width. See building expansions and additions for how that works.
Almost always. A larger roof and paved yard create runoff, and cities and counties usually want to see how it leaves the site. We coordinate with the civil engineer early because detention can take land you planned to use for trucks.
It depends on the loads. A light-duty storage floor is a different slab than one under heavy racking or a forklift fleet with hard wheels. Your geotechnical report and racking vendor drive the design, and we do not guess without them.
Sometimes. For light conditioning, insulation and a good vapor barrier can do the job. For true cold, read cold storage facilities, because floors and panels change the project.
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.