The interior of a shouse where a warm finished living area meets a shop bay with a truck and snowblower, snow visible through the door windows.

Shouses in Wisconsin: Shop and Home Under One Roof

A shouse is a shop house: a working shop and a full home under one roof, usually a large clear-span bay on one side and the living quarters on the other. It suits Wisconsin owners who farm, fix equipment, run a trade from home, or need room for a truck, a snowplow, an ice-fishing shanty and a boat. In Wisconsin an attached shop or garage is part of the dwelling under the Uniform Dwelling Code (SPS 320.02), so both halves are planned, permitted and inspected together. What makes a shouse work is the boundary between them: the wall and door between shop and house, the heated and unheated zones, and where the shop floor drains go.

A drawing set ready for dwelling code plan review
Sized to the dwelling code snow zone and frost rule
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Shouses: how the work runs

Four stages, in this order. The sequence matters more than it looks: settling who enforces the dwelling code on your parcel, the zoning and the septic answer before anything is fabricated is what keeps a Wisconsin build from stalling into the frost season.

1

Shop first, then the house around it

The shop decides the building: door sizes, eave height, the clear span a lift or a tractor needs, and whether the shop is heated. The living side is then laid out around it, with the mudroom and laundry between the two where they belong in a Wisconsin winter.

2

The wall between shop and house

An attached shop is inside the dwelling code's scope (SPS 320.02), and the Uniform Dwelling Code sets the separation: fire-resistive wall and ceiling construction from the foundation to the roof sheathing, such as 5/8-inch Type X drywall on the garage side, and a labeled 20-minute fire-rated door between shop and house (SPS 321.08). A detached shop less than 10 feet from the house needs a fire-resistive wall facing it; one more than 10 feet away has no separation requirement.

3

Shop drains, slope and the slab

A shop floor collects grit, oil and melted road salt. Under Wisconsin's plumbing code a garage or shop floor drain needs a removable, solid-bottom sediment basket (SPS 382.34). Where the drain discharges is settled with the licensed trade contractor doing the plumbing before the slab is formed, and the floor slope and drain location are drawn at the same time.

4

Heat, ventilation and finish

A heated attached shop either meets the dwelling code's energy rules like the house or is kept on separate heating with a thermostat permanently limited to 50°F (SPS 322.30). A wood stove may not go in a garage or shop unless it is listed for that use (SPS 323.045). Shop ventilation keeps exhaust out of the living side, and plumbing, electrical and HVAC are installed by licensed trade contractors.

A red oxide primed structural steel frame partly erected on a concrete slab, showing bolted knee joints and anchor bolts.
Two halves, one roof

How you use the shop matters as much as how you build it

An attached shop is part of the dwelling under Wisconsin's Uniform Dwelling Code, but the shop's use can change that. A home occupation using more than a quarter of the habitable floor area, or one that repairs motor vehicles, falls outside the dwelling code, and the commercial building code may apply instead (SPS 320.02). If the shop is for a business, we find out what your building department and zoning office say before the plans are drawn.

Where we deliver shouses

In Wisconsin the building code does not change at a municipal line, but almost everything around it does. Land is governed by a city, a village or a town, and each can enforce the Uniform Dwelling Code itself or by contract; where one has no ordinance of its own, the county's applies, and in some small municipalities a state-contracted agency does the inspections. Cross one of those lines and what changes is who reviews the drawings and inspects the work, how the land is zoned, and what the permit costs. The roof snow zone changes too, between the northern and southern halves of the state.

Barndominium builders across Wisconsin.

Every city and county we build in has its own answer on who issues the permit, how the land is zoned and how septic is handled. The service area pages set out what each one publishes.

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What actually decides the price

Square footage is the number everyone leads with, and it is rarely the one that moves a barndominium budget. These four do.

  • Heating the shop

    Whether the shop is heated, and how, is one of the biggest cost decisions on a shouse. In-floor radiant heat has to be decided before the slab is poured; a unit heater can be added later.

  • Shop drains

    A shop drain means a sloped slab, a sediment basket and a discharge point that has to be settled before the pour. Deciding early whether the shop needs a drain at all saves money.

  • Overhead doors

    Size, count, insulation value and openers. A tall insulated door for a camper or a combine costs far more than a standard garage door, and every big door is heat lost when it opens in January.

  • The shop-to-house wall and door

    Fire-resistive wall and ceiling construction and a labeled 20-minute door between shop and house (SPS 321.08) are a modest cost when drawn in from the start and an expensive one to retrofit.

The interior of a shouse where a warm finished living area meets a shop bay with a truck and snowblower, snow visible through the door windows.

Shouses in Wisconsin: common questions

8 questions we get asked most often about building in Wisconsin. If yours is not on the list, ask it directly.

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What is a shouse, or shop house?
A building with a working shop or garage and a full home under one roof. Most are steel or post-frame buildings with a large clear-span shop on one side and the living quarters on the other, sometimes with a loft above.
Is the shop part of the house for the building code?
If it is attached, yes: the Uniform Dwelling Code covers attached garages (SPS 320.02). A detached shop is outside the dwelling code, though local zoning and permits still apply (SPS 320.05). The exception is a shop used for a business that takes more than a quarter of the habitable floor area or repairs motor vehicles, which falls outside the dwelling code and may come under the commercial building code.
What does the wall between the shop and the house need?
Under the Uniform Dwelling Code, the wall and ceiling between an attached garage or shop and the house are built fire-resistive from the foundation to the roof sheathing, for example with 5/8-inch Type X drywall on the garage side, and the door between them is a labeled 20-minute fire-rated door (SPS 321.08). An overhead garage door never counts as an exit from the house (SPS 321.03).
How big should the shop be?
Start from what goes in it: vehicles, a trailer, a boat, a lift, a workbench and room to walk around them all with the doors closed. Most owners wish their shop were deeper and taller rather than wider.
Should the shop be heated?
If you will work in it through a Wisconsin winter, most owners want heat. A heated attached shop either meets the dwelling code's energy rules or runs on separate heating held to 50°F by a permanently limited thermostat (SPS 322.30), and a wood stove can go in it only if listed for a garage (SPS 323.045). In-floor radiant heat has to be decided before the pour.
Can I run a business from the shop?
Possibly, but check two things first. Zoning decides whether the use is allowed on your parcel. And under Wisconsin's Uniform Dwelling Code, a home occupation over a quarter of the habitable floor area, or one involving motor-vehicle repair, is outside the dwelling code, so the commercial building code may apply (SPS 320.02). We ask before the plan is finished.
Steel or post-frame for a shouse?
Both work. Steel suits very wide shop spans and very tall doors. Post-frame can cost less on moderate spans and takes interior finish easily. Our steel construction and pole barn home pages compare the two.
Can the shop go up first and the living side later?
Yes, if the whole building is planned at the start. Once living quarters are added, the building is a dwelling and has to meet the Uniform Dwelling Code (SPS 320.04), so the foundation, insulation and rough-ins are planned for the house it will become.

Sources

Keep reading

The pages that answer the next question this one raises.

Barndominium With Shop

The plan-side version of the same idea: living space and a working bay under one roof.

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40x60 Barndominium

A footprint that splits comfortably into living and working halves.

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Are Barndominiums Worth It?

The shop-plus-home case is the strongest one for this building type.

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Ready to put shouses against a real plan? Start there and the rest follows.

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Tell us where the parcel is and what you want on it, and we will come back with who has jurisdiction, what the land needs before it can be built on, and a realistic budget range. Starting the survey costs nothing.

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