You can buy a barndominium floor plan online for $400. Most of them were drawn in Texas. None of them think about Idaho wind, snow drift, or December mornings at -15°F. Here’s what to change.
Orient against the prevailing wind
In Eastern Idaho, the prevailing wind comes from the southwest. Put your shop overhead doors on the east or northeast face. Snow drifts pile up on the lee side of structures, and you don’t want them blocking your bays in January.
Plan the snow shed
A 12/12 metal roof in our climate sheds snow like a guillotine. Don’t put walkways, propane tanks, AC condensers, or porches in the dump zone. If you have a covered porch on the south side, design the porch roof to catch and hold, not shed.
The mudroom most plans skip
You walk in from the shop covered in sawdust, mud, or diesel. The plan should have a dedicated transition zone: heated tile floor, floor drain, utility sink, bench with boot storage, washer/dryer adjacent. Six feet by ten feet minimum.
Shop placement: attached or breezeway?
Attached is cheaper and warmer. Breezeway is quieter and keeps shop noise/fumes out of the house. For working contractors, attached with a heavily insulated party wall and a tight door. For weekend hobbyists, breezeway.
Three layouts that work in Idaho
- Linear (40×80): Shop on one end, living on the other, mudroom in between. Simple, efficient, cheap.
- L-shape: Living wing on the south for solar gain, shop wing on the east. Costs more but lives better.
- T-shape with second story: Shop on ground, living above and behind. Maximizes square footage on smaller lots.
Bring us a stock plan and we’ll redline it for Idaho before you spend a dollar on foundation. Get your plan reviewed →
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