A 50×80 metal building kit encloses 4,000 square feet, a footprint 50 feet wide and 80 feet deep. That is a full commercial shop, a warehouse, a fleet maintenance bay, or an indoor arena under one clear-span roof. Fifty feet of width holds two deep work lanes side by side with no post in the way, and the 80-foot depth runs long enough to stage a production line, park a fleet nose to tail, or split the floor into a shop on one end and storage on the other.
This guide sits under the metal building sizes pillar, and it covers one footprint in depth: what fits inside a 50×80, the uses it suits, the frame and options you will see on a quote, the clear heights you can order, and an illustrative 2026 price range. To see this size against every other footprint at a glance, the metal building size chart lays them out side by side.
4,000 square feet
What a 50×80 metal building kit covers
Fifty feet wide by eighty feet deep gives you 4,000 square feet of enclosed floor. The width is the headline: 50 feet clears two over-deep work bays across, or a turning lane wide enough to back a semi trailer, and a red iron frame holds that span open with no interior column to route around. The 80-foot depth is what pushes this size out of garage territory and into industrial use, with room for a production floor, a racked warehouse, or a riding arena with space along the rails.
Think of it as the size where a building runs an operation, not a hobby. A 50×80 swallows a row of service bays, an office, and a wash bay and still leaves a clear drive down the center. That reach is why the footprint suits dealers, contractors with a crew, small manufacturers, and owners storing a working fleet. If 4,000 square feet is more than you need, the 50×60 keeps the same 50-foot width in a shorter box.
What fits
What fits inside a 50×80 building
A working fleet, a full warehouse of racking, or a shop with a dozen vehicles and room to move between them. The table below shows how a 50×80 handles the loads buyers most often put in this footprint, and where the building still sets the limit.
| What you want to store | How a 50×80 handles it |
|---|---|
| A vehicle fleet | Roughly a dozen or more vehicles parked in lanes ‹confirm›, with a turnaround inside |
| Warehouse racking | Several rows of pallet racking with forklift aisles and a loading door |
| Service or repair shop | Multiple drive-through bays, lifts, a parts room, and an office partitioned in one corner |
| RVs and toys | Two or three Class A coaches nose to tail, plus boats, trailers, and daily drivers |
| Farm equipment | A combine, a tractor with implements, and a shop, all under one roof with a tall door |
| Indoor arena or court | A compact riding arena, a practice court, or an event floor with space along the edges |
What clears and what does not. A 50×80 is industrial-scale space, 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 order 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 50×80 footprint
The 4,000-square-foot footprint is where a building stops being storage and becomes infrastructure for a business. These are the jobs it does best:
- Commercial or industrial shop. Fabrication, welding, diesel and fleet repair, or a contractor base with multiple bays, a parts counter, and an office.
- Warehouse or distribution. Pallet racking, forklift aisles, and a loading door for a small operation that has outgrown a rented unit. For layout ideas across uses, see what people build.
- Fleet and equipment storage. Work trucks, trailers, and machines staged inside, out of the weather and off the yard.
- Agricultural and equestrian. A machine shed for large implements, or a compact indoor riding arena with room along the rails.
- Large RV and toy barn. Several motorhomes, boats, or off-road rigs under one tall roof with space 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 longer 50×100 and the wider 60×80 before you commit, since a few feet of width or depth changes what the building holds and what it costs to heat and insure.
Frame and options
The frame, doors, and clear height
At a 50-foot width, a kit this size uses a bolt-up red iron frame, because that span demands the load rating and the clear floor only a structural frame delivers. The primary frame is structural I-beam, not light tube, and that is what holds 50 feet open with no center column. The secondary members are sold by wall thickness in gauge, where a lower number means thicker steel. A clear-span frame matters 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 50×80 is commonly offered with side walls from about 14 to 24 feet ‹confirm›. Sixteen feet suits a shop with 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, so order the height your tallest job needs and not a foot more.
On the options list you choose a roof style, the doors, and any openings. A row of large roll-up doors plus walk-in doors and a few windows covers most commercial builds, with a drive-through pair on opposite 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. Order the certified load rating for your county so the kit is stamped for local snow and wind, not just the base 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 50×80 metal building kit costs in 2026
As a 2026 illustration, a 50×80 steel shell kit runs roughly $50,000 to $110,000 ‹confirm› for the bare building. The spread is wide because eave height, roof style, door count, and the certified load rating each move the number. A basic enclosed shell with a low eave sits near the bottom; a fully certified red iron building with a tall eave, several roll-up doors, and a vertical roof sits near the top ‹confirm›.
That figure is the kit alone. Budget separately for a concrete slab, delivery, permits, and any insulation or interior finish, which can add tens of thousands of dollars ‹confirm› on top of the shell at this footprint. For the full breakdown of what drives the total, see the metal building kit prices pillar.
Treat any single number with care: prices move with the steel market, your location, and the season. Get a written quote stamped for your address, confirm the frame type and the load rating, and check it against current ranges in the size chart before you sign.
FAQ
50×80 metal building kits: common questions
How many square feet is a 50×80 building?
A 50×80 building is 4,000 square feet, found by multiplying 50 feet of width by 80 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 fit in a 50×80 garage?
Roughly a dozen or more vehicles fit, depending on your door layout and how much floor you keep for work ‹confirm›. The clear-span frame leaves the 50-foot width open, so you can run lanes deep or set up service bays. Most owners trade some parking for a shop, racking, or a turnaround lane inside.
How much does a 50×80 metal building cost?
As a 2026 illustration, the bare shell kit runs roughly $50,000 to $110,000 ‹confirm›, depending on eave height, doors, roof style, and the certified load rating. 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 50×80 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.
Will an RV fit in a 50×80 building?
Yes, with room for several. The 80-foot depth clears even the longest motorhomes nose to tail, and the 50-foot width leaves space for boats, trailers, or a second coach alongside. The roof height is the real limit, so a tall Class A coach needs a 16-foot or taller eave and door. Confirm the clear door opening, not just the floor length.
Does a 50×80 kit use tube steel or red iron?
Red iron. At a 50-foot width 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.
Can a 50×80 building be an indoor riding arena?
Yes. A 50×80 makes a compact indoor arena with a clear-span floor and room along the rails, 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 50×80 suits practice, training, and small-stock work.
Related guides
Keep reading
Comparing this footprint against its neighbors and the hubs that put it in context:
- Metal building sizes: the complete guide (the parent pillar).
- 50×60 metal building kits and 50×100 metal building kits (the same width in a shorter and a longer box).
- 60×80 metal building kits (a wider footprint on the same 80-foot depth).
- Large metal building kits (where a 50×80 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).
