A 50×100 metal building kit encloses 5,000 square feet, a wide rectangle 50 feet across and 100 feet deep. Fifty feet of clear width holds two deep work lanes with no post between them, and the 100-foot depth runs long enough to drive a truck and trailer straight through, line up a row of service bays, or stage a warehouse floor from the staging end to the shipping door. This is one of the largest footprints in the lineup, the size a buyer reaches for when a building has to run a business, not park a few vehicles.
This guide sits under the metal building sizes pillar, where every footprint from a backyard shed to a commercial shell gets the same plain breakdown. Below: what fits inside a 50×100, the uses the big footprint suits, the frame and options on a typical quote, the clear heights you can order, and an illustrative 2026 price range to carry into a supplier conversation. To set this size against every other footprint at a glance, the metal building size chart lays them out side by side.
5,000 square feet
What fits inside a 50×100 metal building
At 5,000 square feet, a 50×100 is industrial space, not a large garage. The 50-foot clear width takes two over-deep bays side by side or a turning lane wide enough to back a semi trailer, and the 100-foot depth carries that lane far enough back for a full production run, a racked warehouse, or a riding arena with room along the rails. A red iron frame holds the whole 50 feet open, so nothing on the floor has to route around a center column.
That combination of width and depth is what owners notice every day. A rig pulls in one end and out the other with no backing, a back wall a hundred feet away leaves room for a mezzanine and a walled-off office without crowding the work floor, and there is still a clear drive down the middle. Here is what the footprint handles without strain:
| What you want inside | How a 50×100 handles it |
|---|---|
| A working vehicle fleet | Fifteen or more vehicles parked in lanes ‹confirm›, with a turnaround and a service area inside |
| Warehouse racking | Several rows of pallet racking, wide forklift aisles, and a drive-in loading door |
| Service or repair shop | A row of drive-through bays, lifts, a parts room, and an office partitioned off one corner |
| RVs, boats, and toys | Three or more Class A coaches nose to tail, plus boats, trailers, and the daily drivers alongside |
| Farm equipment | A combine, a tractor with implements, and a shop, all under one roof with a tall door |
| Indoor arena or court | A practice riding arena, an event floor, or a court with clear space along every edge |
What clears and what does not. A 50×100 is operating space for a business, not a personal garage.
Mind the door, not just the floor
A tall RV, a stacked load, or a piece of farm equipment can fit the floor plan and still hit the door header. The roll-up opening sets your real clearance, so size the door height around the tallest thing you move through it, not the average. The how to choose a size guide walks through measuring before you buy.
Common uses
Common uses for a 50×100 footprint
The 5,000-square-foot footprint is where a metal building stops being storage and becomes infrastructure for an operation. The wide, postless floor flows in any direction, which is why this size turns up so often across our metal building uses library. The footprint earns its keep as:
- A commercial or industrial shop. Fabrication, welding, diesel and fleet repair, or a contractor base with a row of bays, a parts counter, and an office.
- A warehouse or distribution shell. Pallet racking, forklift aisles, and a loading door for an operation that has outgrown its rented units.
- Drive-through equipment storage. A door at each end lets a working farm or contractor pull the whole fleet through, off the weather and off the yard.
- An indoor arena or covered lane. The 100-foot length gives horses or machinery a genuine run, with the 50-foot width open the whole way.
- A large RV and toy barn. Several motorhomes, boats, or off-road rigs under one tall roof with floor left over to service them.
If you want covered space more than a fully enclosed room, the same footprint works as an open or partly enclosed cover for less money. Weigh it against the shorter 50×80 and the narrower 40×100 before you commit, since ten feet of width or twenty of depth changes what the building holds and what it costs to heat and insure. The large metal building kits roundup shows where the 50×100 sits among the commercial sizes.
Frame and options
The frame, doors, and clear height
At a 50-foot width over 100 feet, a kit this size rides on a bolt-up red iron frame, because that span and length demand the load rating and the clear floor only structural steel delivers. The primary frame is structural I-beam, not light tube, set in rigid bays down the run, and that is what holds 50 feet open with no center column. Secondary members are sold by wall thickness in gauge, where a lower number means thicker steel. The clear span is the whole point here: it keeps the full 50-foot width usable for forklift aisles, drive-through bays, or an open arena floor.
Clear height is where buyers most often under-order. The eave height, the wall height at the side, sets how tall a door you can hang and how much headroom you keep inside. A 50×100 is commonly offered with side walls from about 14 to 24 feet ‹confirm›. Sixteen feet suits a shop with two-post lifts; go to 20 feet or more if you want stacked racking, a drive-through for tall trucks, an overhead crane, or a mezzanine. A taller eave costs more steel and raises the roof peak with it, so order the height your tallest job needs and not a foot beyond.
On the options list you choose the roof style, the doors, and the openings. A row of large roll-up doors plus walk-in entries and a few windows covers most commercial builds, with a drive-through pair on opposite end walls if you want to pull straight through. The roof comes as standard, A-frame, or vertical-rib, with the vertical roof shedding water and snow better for a small premium. Insulation is worth pricing in from the start if you will heat or cool the space, since it is also the first defense against condensation on a roof this large. Order the certified load rating for your county so the kit is stamped for local snow and wind, not just the catalog spec.
Order the size you will grow into, not the one that just fits today. A few feet of eave height or a second drive-through door costs far less now than a rebuild later.
Price
What a 50×100 metal building kit costs in 2026
As an illustrative 2026 range, a 50×100 steel shell kit tends to land in the high five figures for a basic enclosed building and climbs into six figures once it is fully certified, tall, and finished. Treat these as planning numbers to confirm against a current quote, since eave height, roof style, door count, and the certified load rating each move the total the most:
| 50×100 configuration | Illustrative 2026 kit range | Notes |
|---|---|---|
| Open shell / cover style | $55,000 – $85,000 ‹confirm› | Frame, roof, partial or no walls |
| Enclosed warehouse shell | $80,000 – $130,000 ‹confirm› | Full walls, several bay doors, base load rating |
| Insulated, finished building | $120,000 – $190,000 ‹confirm› | Insulation, windows, tall eave, upgraded doors |
Illustrative 2026 kit-only ranges. Confirm every figure with a current quote; foundation, delivery, and permits are separate.
Those figures are the kit alone. Budget separately for a concrete slab, delivery, permits, and any interior finish, which on a 5,000-square-foot build can add tens of thousands of dollars ‹confirm› on top of the shell. Prices also move with the steel market, your location, and the season, so get a written quote stamped for your address and confirm the frame type and load rating before you sign. For the full picture of what drives the number, see the metal building kit prices pillar, and use the size chart to compare the 50×100 against other footprints on price per square foot.
FAQ
50×100 metal building kits: common questions
How many square feet is a 50×100 building?
A 50×100 building is 5,000 square feet, found by multiplying 50 feet of width by 100 feet of depth. That is the footprint of a full commercial shop, a small warehouse, or an indoor arena, with a clear-span frame that keeps the whole floor open and no interior columns to work around.
How many cars or RVs fit in a 50×100?
Roughly fifteen or more standard vehicles fit, depending on your door layout and how much floor you keep for work ‹confirm›. For RVs, three or more Class A coaches park nose to tail down the 100-foot length, with boats and trailers alongside. Roof height is the real limit for tall rigs, so confirm the clear door opening, not just the floor length.
How much does a 50×100 metal building cost?
As a 2026 illustration, an open shell runs roughly $55,000 to $85,000 ‹confirm› and a fully enclosed, insulated building climbs to $120,000 to $190,000 ‹confirm›. Those are kit-only figures; a slab, delivery, permits, and insulation are extra. Always get a written quote stamped for your location before you compare prices.
How tall can a 50×100 building be?
Side wall, or eave, heights of about 14 to 24 feet ‹confirm› are common at this size. Sixteen feet suits a shop with lifts; order 20 feet or taller if you want stacked racking, a tall drive-through, an overhead crane, or a mezzanine. The eave height sets how tall a door you can hang, so plan the door clearance first.
Does a 50×100 kit use tube steel or red iron?
Red iron. At a 50-foot width over 100 feet, a bolt-up structural frame gives you the clear span with no center column and the load rating a building this size needs. Light-gauge tube is suited to narrow carports and small garages, not a 50-foot span carrying a commercial or industrial roof down a 100-foot length.
Can a 50×100 building be an indoor riding arena?
Yes. A 50×100 makes a usable indoor arena with a clear-span floor and a genuine 100-foot run, and the bolt-up red iron frame holds the full 50-foot width open so nothing breaks up the ride. A regulation dressage court wants a wider footprint, but a 50×100 suits practice, training, roping, and small-stock work well.
Related guides
Keep reading
Compare this footprint with its neighbors, then check the hubs that put it in context:
- Metal building sizes: the complete guide (the parent pillar).
- 50×80 metal building kits and 50×60 metal building kits (the same 50-foot width in shorter boxes).
- 40×100 metal building kits (ten feet narrower over the same length at 4,000 square feet).
- Large metal building kits (where a 50×100 sits among the big footprints).
- How to choose a metal building size (measure before you buy).
- Metal building size chart (every footprint and its uses in one table).
