What size building should you choose?
Match the footprint to what goes inside, add room to grow, and account for height. These guides pair common sizes with real use cases and cost estimates.
By use case
Start from how you'll use it.
The right size follows the job. Here are the footprints that fit the most common projects.
Two-car garage
Two vehicles, basic storage, light hobby use.
Workshop + storage
A real shop with room for benches, tools, and a vehicle bay.
Equipment & multi-use
Tractors, trailers, and toys — the most popular all-rounder.
RV garage
Class-A RVs and boats with 14–16-ft sidewalls.
Horse barn
Four to six stalls with an aisle and tack room.
Barndominium
Open-plan living with attached shop or garage space.
How to choose
Four steps to the right size.
Get these right before you pour and you'll avoid the most expensive regret in building: too small.
Measure what goes inside
List your vehicles and equipment with real dimensions, then add working clearance around each.
Add room to grow
Most owners wish they had gone bigger. Adding 10–20% up front is far cheaper than expanding later.
Don't forget height
Sidewall height sets door size and overhead clearance — often more limiting than floor area.
Check local codes
Setbacks, lot coverage, and permit thresholds can cap your footprint before you ever pour.
Reference
Common size reference.
Square footage and typical use for standard footprints.
| Size | Sq ft | Typical use | Garage bays |
|---|---|---|---|
| 24×24 | 576 | Two-car garage | 2 bays |
| 24×36 | 864 | Garage + small shop | 2–3 bays |
| 30×40 | 1,200 | Workshop with storage | 3 bays |
| 30×50 | 1,500 | Shop + equipment | 3–4 bays |
| 40×60 | 2,400 | Multi-purpose / barndo | 4–5 bays |
| 50×80 | 4,000 | Large ag / commercial | 6+ bays |
| 60×100 | 6,000 | Commercial / storage | 8+ bays |
Found your size? Price it.
Drop your dimensions into the calculator and see budget, average, and premium estimates instantly — or open a size-specific cost breakdown.