A 30×50 metal building kit encloses 1,500 square feet, a footprint 30 feet wide and 50 feet deep. That is shop-and-storage territory: the clear 30-foot width parks three vehicles across or opens a wide work bay, and the 50-foot depth runs long enough to keep a row of vehicles up front and a full workshop behind them. This is the size where a garage stops being a parking box and starts being a building you run a project out of.
This guide sits under the metal building sizes pillar, and it covers one footprint in depth: what fits inside a 30×50, 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 weigh this size against every other footprint, the metal building size chart lays them out side by side.
1,500 square feet
What a 30×50 metal building kit covers
Thirty feet wide by fifty feet deep gives you 1,500 square feet of enclosed floor. The width is the number that changes the building: 30 feet is a true clear-span shop width, wide enough for three vehicles abreast or an open bay with no post in your way. The 50-foot depth then splits cleanly into a parking zone up front and a dedicated work zone behind, with neither one feeling cramped.
Picture a three-car garage with a real shop, or a six-car shell with vehicles parked three across and two deep. The jump over a 30×40 turns a large garage into a small commercial floor. If you want the same width with more room behind the vehicles, the 30×60 is the deeper neighbor on the same 30-foot frame.
What fits
What fits inside a 30×50 building
Up to six vehicles, or a fleet of two or three plus a serious shop. The table shows how a 30×50 handles the loads buyers park in this footprint, so you size the building to the job rather than guess.
| What you want to store | How a 30×50 handles it |
|---|---|
| Six cars in a grid | Three standard cars across, two rows deep, with door-opening room between them |
| Three vehicles plus a shop | A row of three up front, a full bench, tool wall, and floor space across the back |
| RV plus a daily driver | A motorhome up to roughly 45 feet ‹confirm› down one side, a car or truck beside it |
| Boat, truck, and trailer | A trailered boat, a tow vehicle, and a utility trailer with room to walk each one |
| Tractor and full implements | A tractor with mower, attachments, and a parts bench under one roof |
| Small business or fleet bay | Two or three work trucks, racked materials, and a parts counter under cover |
What clears and what does not. A 30×50 is a six-vehicle footprint with genuine shop depth.
Mind the door, not just the floor
A motorhome or a tall truck 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 park. The how to choose a size guide walks through measuring before you buy.
Common uses
Common uses for a 30×50 footprint
The 1,500-square-foot footprint sits where a hobby building becomes a working one: large enough for a multi-bay shop, a fleet, or a finished home, yet still a single-span steel shell. These are the jobs it does best:
- Multi-bay garage or fleet storage. Three vehicles across with a second row behind, or a mix of cars, trucks, and toys under one roof.
- Full home or trade workshop. Woodworking, welding, fabrication, or a mechanic’s bay with vehicles parked alongside. For layout ideas across sizes, see what people build.
- RV and toy storage. A large motorhome plus a boat, side-by-sides, or a second vehicle, off the weather and out of the driveway.
- Small business or contractor base. Work trucks, racked materials, a parts counter, and a small office partition under cover.
- Barndominium or finished living space. At 1,500 square feet the shell holds a genuine home; insulate and line it, or split it into a shop and living quarters.
If covered space matters more than a fully enclosed room, the same footprint works as an open or partly enclosed cover for less. Weigh it against the squarer 30×30 and the wider 40×50 before you commit, since a few feet either way changes what the building holds and what it costs to heat.
Frame and options
The frame, doors, and clear height
At a 30-foot width the frame choice is mostly settled: bolt-up red iron is the standard pick, because it spans the full 30 feet with no interior post and carries the load rating a building this size needs. Light-gauge tube steel covers narrower spans but struggles to clear-span 30 feet without help. Frames are sold by wall thickness in gauge, where a lower number means thicker steel, and the certified red iron frame is what keeps the whole 1,500-square-foot floor open.
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. A 30×50 is commonly offered with side walls from about 10 to 20 feet ‹confirm›. Ten feet suits cars and a workbench; go to 14 feet or more for a two-post lift, a tall RV, a mezzanine, or overhead crane room.
On the options list you choose a roof style, the doors, and any openings. Three or four roll-up doors plus a walk-in door and a few windows cover most multi-bay builds, and a wide gable-end opening lets an RV or a trailer back straight in. The roof comes as a standard, A-frame, or vertical-rib style, 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 fourth roll-up door costs far less now than a rebuild later.
Price
What a 30×50 metal building kit costs in 2026
As a 2026 illustration, a 30×50 steel shell kit runs roughly $18,000 to $42,000 ‹confirm› for the bare building. The spread is wide because frame weight, 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 tall, certified red iron building with 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, and any insulation or interior finish, which can add several thousand dollars ‹confirm› on top of the shell on a building this size. 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 load rating, and check the figure against current ranges in the size chart before you sign.
FAQ
30×50 metal building kits: common questions
How many square feet is a 30×50 building?
A 30×50 building is 1,500 square feet, found by multiplying 30 feet of width by 50 feet of depth. That is the footprint of a multi-bay shop or a small commercial floor, large enough for three vehicles across and a second row behind, or a full workshop with vehicles parked alongside.
How many cars fit in a 30×50 garage?
Up to six standard cars fit in a grid, three across the 30-foot width and two rows deep down the 50-foot depth, with room to open the doors. Many owners instead park three vehicles up front and keep the back of the floor for a shop, a lift, or storage. Your door layout decides the real mix.
How much does a 30×50 metal building cost?
As a 2026 illustration, the bare shell kit runs roughly $18,000 to $42,000 ‹confirm›, depending on frame weight, eave height, doors, roof style, and the certified load rating. A slab, delivery, and insulation are extra. Always get a written quote stamped for your location before you compare prices.
How tall can a 30×50 building be?
Side wall, or eave, heights of about 10 to 20 feet ‹confirm› are common at this size. Ten feet suits cars and a bench; order 14 feet or taller if you want a two-post lift, a tall RV, a mezzanine, or overhead crane room. The eave height sets how tall a door you can hang.
Will an RV fit in a 30×50 building?
Yes. The 50-foot depth clears a motorhome up to roughly 45 feet ‹confirm› with room to spare, and the width leaves space for a second vehicle alongside. The roof height is the real limit, so a tall Class A coach needs a 14-foot or taller eave and door. Confirm the clear door opening, not just the floor length, before you order.
Does a 30×50 kit use tube steel or red iron?
Red iron is the standard at this width. A bolt-up red iron frame spans the full 30 feet with no center post and carries the load rating a 1,500-square-foot building needs. Light-gauge tube steel works on narrower spans, but it struggles to clear-span 30 feet, so most 30×50 kits ship as certified red iron.
Is a 30×50 big enough for a barndominium?
Yes. At 1,500 square feet a 30×50 shell holds a genuine home, and the clear span lets you lay out rooms without working around posts. Many owners split it, putting a shop or garage on one end and finished living space on the other. Plan the doors, windows, and rough-ins before the frame is stamped.
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).
- 30×40 metal building kits and 30×60 metal building kits (the same width, shallower and deeper).
- 40×50 metal building kits (the wider step up if 30 feet feels tight).
- Most popular metal building sizes (where the 30×50 ranks among buyers).
- How to choose a metal building size (measure before you buy).
- Metal building size chart (every footprint and its uses in one table).
