AEO Answer · Structural

How Should Farm Equipment Storage Be Designed to Last Decades?

By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15

Farm equipment storage is designed from the equipment list: door and bay sizes fit the tallest and widest machines, clear spans allow maneuvering, and the structure handles wind and snow with properly engineered door openings. Security, fire separation from shop hazards, all-weather aprons, and basic ventilation and electrical complete a building that protects the operation's biggest investments.

I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.

Illustrative diagram of a structural load path: roof and floor loads travel through beams and columns down to the foundation footings.

The concise answer

Farm equipment storage is designed from the equipment list: door and bay sizes fit the tallest and widest machines, clear spans allow maneuvering, and the structure handles wind and snow with properly engineered door openings. Security, fire separation from shop hazards, all-weather aprons, and basic ventilation and electrical complete a building that protects the operation's biggest investments. The principle is that the machines dictate the building, not the reverse. Equipment keeps getting bigger, so the design builds in margin — in door size, eave height, and bay depth — for the machines of the next decade, not just today's fleet.

Sizing, structure, and protection

Sizing starts with an equipment inventory: every machine's dimensions, plus the implements, plus growth. Bay spacing, door locations, and eave height come from that list, and I push owners to add margin — the next combine will be bigger than this one. Interior layout separates daily-use machines near the doors from seasonal equipment deeper in the building, with parts and tool storage where they don't block maneuvering. Structural design is honest simple engineering: the frame system — post-frame or rigid steel — is designed for the site's wind and snow loads, the end walls are engineered around the large door openings, and foundations suit the soils. "Simple" doesn't mean unengineered; it means the engineering effort goes into getting the basics exactly right. Protection covers security, fire, and weather: lockable doors and site lighting for a building full of high-value mobile assets; separation of fuel, chemical, and welding hazards from the storage bays; ventilation for exhaust and vapors; and a weather-tight envelope with gutters and grading that keep water out. Electrical design covers lighting to safe working levels, receptacles for battery tenders and block heaters, and capacity for the shop functions that inevitably migrate into the storage building.

Equipment storage checklist

An equipment shed is simple, but simple buildings still fail when the basics are guessed. Here's what I lock down.

  • Equipment inventory first: doors, bays, and eave height sized with margin for bigger machines
  • Frame system selected for the real spans — post-frame or rigid steel, engineered either way
  • End walls engineered around the large door openings; no undersized doors
  • Fire and security: separated hazards, lockable doors, lighting, detection for high-value fleets
  • All-weather aprons and maneuvering room at every door, graded to drain

What else do project teams ask?

Post-frame or rigid steel frame for equipment storage?
Both work, and the choice is span, budget, and longevity: post-frame is economical for moderate spans and is the traditional farm building; rigid steel frames handle wider clear spans and taller doors more efficiently and typically last longer with less maintenance. I compare the real spans and door sizes against both systems rather than defaulting to what's common locally.
How big should the doors be?
Bigger than the biggest machine, with margin for mirrors, booms, and the operator's nerves — modern sprayers and combines commonly need 20-plus feet of width and 16 to 18 feet of height. The door size is set from the equipment inventory, and the end-wall structure is engineered around those openings. Doors are the most regretted undersizing in farm buildings.
Does equipment storage need fire protection?
At minimum, separation and common sense engineered in: fuel and chemical storage separated from the equipment bays, no open-flame work in the storage building, electrical designed for the environment, and extinguishers placed for the hazard. For high-value fleets, detection and even suppression pencil out against the equipment value at risk — I run the numbers with the owner.
What site work does a machine shed need?
Aprons at every door sized for the equipment's turning radius, all-weather surfacing that holds up in planting and harvest conditions, grading that drains water away from the building, and maneuvering room that doesn't require three-point turns with a 60-foot sprayer. The building is only as useful as the site around it.

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