Planning A New Farm Building: Lessons From Doing It Wrong The First Time

Putting up a new shop, machine shed, or storage building is one of those projects every farmer faces eventually. And almost every farmer I know has a story about something they wish they’d done differently. I’ve put up three buildings on our place over the last 25 years, and only the third one I’d call genuinely well-planned. The first two have quirks I’ve had to live with for decades. So I want to share some of the lessons before you sign on the dotted line for yours.

Lesson one: size up. Whatever you think you need, add at least 20% to the footprint. Equipment gets bigger over time, your operation might expand, and stuff accumulates faster than you expect. The marginal cost of an extra ten feet on each dimension is small relative to the total project. The cost of building an addition five years later is much higher. I’ve never met a farmer who said his shop was too big. I’ve met plenty who said theirs was too small.

Height matters more than width on most farms, particularly if you’re working on big equipment. A 16 foot eave height feels generous when you’re looking at blueprints. Then you bring in a sprayer with the booms folded up and discover you need 18 feet to comfortably work on it. Or you decide later you want a hoist for engine work and there’s no room. Plan for the tallest equipment you might ever bring in, not just what you have today.

Door placement and size is one of those things people get wrong constantly. Big doors on the ends of the building seem obvious, but think about wind direction, snow drifting, and traffic flow. A door that faces directly into the prevailing wind will cause drifting and blow-in issues for years. Side doors for personnel and small equipment are easy to forget at design time but invaluable in daily use.

Insulation is the decision that defines whether you’ll actually use the building in cold weather. Uninsulated cold storage buildings are fine for equipment that doesn’t care. But if you ever want to work in there in January, insulate properly from the start. Adding insulation after the fact is much more expensive than including it in the original build. R-values matter for both walls and ceiling — the ceiling especially because heat rises.

Heating systems range from radiant tube heaters to in-floor heat to traditional forced air. Each has tradeoffs. Radiant tube is fast and efficient but can create comfort issues. In-floor heat is amazing but requires planning at the slab pour stage and isn’t trivial to install later. Forced air is the cheapest entry but the least comfortable for working on the floor under equipment. Pick based on how you’ll actually use the space, not just upfront cost.

Floor design and slope determines a lot. A perfectly flat shop floor sounds great but means liquids pool wherever they fall. A gentle slope to a drain — or to a drainage trough in critical areas — makes cleanup massively easier. Concrete thickness matters too. Six inches is the minimum for serious equipment work; eight inches with proper rebar is better. The marginal cost of a thicker slab is small compared to the cost of cracking later.

On choosing a builder, the 

farm building suppliers directory on FarmPages lists builders, accessories suppliers, and component manufacturers across most regions. I’d recommend talking to three different builders before settling on one, asking each of them to walk through their typical build with you and getting references from recent jobs. The price difference between builders can be significant and so can the quality of work, so it pays to shop around.

Electrical service is something a lot of farmers under-spec. Three-phase if you can get it, with significantly more amperage than you think you need. Modern shops with welders, compressors, plasma cutters, lifts, multiple bays of work — the load adds up fast. Running heavier service is way cheaper at build time than upgrading later. Same with the breaker panel — go bigger than you need, you’ll fill it.

Lighting deserves real thought. LED has changed everything in shop lighting. You can have bright, even, efficient light at a fraction of the historical cost. Layout lighting so there’s no shadows where you work — under equipment, in corners, at workbenches. Add task lighting on a separate circuit for spots where you do detailed work. Daytime ambient lighting via windows or skylights is great for general use but won’t replace good task lighting.

Don’t forget about water, drains, compressed air, and hydraulic plumbing. Running these inside walls during construction costs almost nothing. Adding them later means cutting, surface mounting, and ongoing aesthetic compromises. Even if you don’t have a current need for, say, a wash bay or an air manifold on every wall, rough it in. Future you will thank present you.

Workshop layout — workbenches, tool storage, parts shelving, vise placement — gets designed by usage, not by plan. Don’t fix this stuff in concrete or screws too early. Live in the space for a few months, see how you actually move through it, then build out permanent fixtures. The shop you imagine on the drawing board is rarely the shop you actually want once you start using it.

Finally, plan for security and fire safety. Locks on outside doors aren’t enough. Cameras, motion lighting, fire extinguishers (more than you think you need), smoke detection if it’s heated and used regularly. A farm shop is full of valuable equipment and flammable stuff. The marginal cost of doing this right is small. The downside of doing it wrong is anywhere from frustrating to catastrophic. Build the building you’ll be happy to walk into thirty years from now, not the cheapest one you can put up this summer.