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Western Building Supply
Large post-frame shop with a tall overhead door and a wood-look porch

40x60 Pole Barn Kit

A 40x60 pole barn kit is where a pole barn becomes a serious building. Whether it is a 40x60 shop, an RV bay with a 40x60x16 frame, equipment parking or a barndominium shell, the 40 ft clear span leaves the whole floor open with no interior posts.

Typical materials range$34K–$85K
Footprint
40′ × 60′
Floor area
2,400 sq ft
Typical eave
14–16 ft
Clear span
40 ft

What a 40x60 pole barn kit costs

Plan on $34K–$85K in materials for a 40x60 (2,400 sq ft). Industry shell-kit materials range for this footprint, from our pole barn cost guide. Labor, concrete and site work are separate.

Your exact number depends on the choices on the right. Send us the size, use and build-site zip code and we will send back an engineered price for your site — usually the same business day.

Full cost guide →

What moves the price

  • Eave heightTaller walls mean longer columns, more steel and bigger doors.
  • Doors and windowsCount and size of overhead doors is often the biggest single swing.
  • Snow and wind loadsHigh-snow and high-wind counties need heavier trusses and tighter spacing.
  • Steel and finishesWoodgrain or textured steel, stone wainscot and pre-finished siding.
  • Porches and lean-tosCovered space on a sidewall adds cost, but far less than more building.
  • Insulation and linerInterior liner panels and insulation packages for heated space.

What people build with a 40x60

  • Full shop with equipment parking
  • RV and boat storage
  • Ag barn and machinery storage
  • Barndominium or shop-house shell

Typical doors: Three to four overhead doors, including one 12–14 ft RV door, plus walk doors

Sizing notes from the field

  1. An RV bay needs a 14 ft tall door — plan a 16 ft eave.
  2. 40 ft clear-span trusses keep the entire floor open for equipment.
  3. Common split: 40x40 shop and parking with a 40x20 insulated office or living space.
  4. A 12 ft porch or lean-to along one sidewall adds covered space for a fraction of the cost of more building.
Western Building Supply flatbed loaded with a post-frame building package on a mountain highway

What ships in a 40x60 kit.

  • Engineered trussesCustom spans up to 86′ in one piece, designed for your site’s snow and wind loads and built in Wheatland.
  • Laminated columnsStraighter than solid posts, with better treatment penetration where the column meets the ground.
  • Steel roofing & siding35+ colors, including textured finishes and a woodgrain, backed by a 40-year paint warranty.
  • Trim & flashingRidge cap, corner trim, J-channel and drip edge, color-matched to your steel.
  • Fasteners & hardwareEvery screw, bolt, bracket and closure strip the build calls for — counted, not guessed.
  • Stamped engineeringSite-specific drawings for your county’s loads, ready to hand to the building department.
  • Delivered on our trucksOur flatbeds, our drivers, with an onboard forklift to set materials where your crew wants them.

Not included: concrete, site work, labor, insulation and interior finish. We’ll tell you exactly where the package stops before you order.

See every component →

40x60 kit questions.

How much does a 40x60 pole barn kit cost?

Industry-wide, shell-kit materials for a 40x60x14 typically run $34,000 to $85,000. Eave height, the number and size of overhead doors, insulation, finishes and your site’s snow load move the number most.

Should I build a 40x60x16 or a 40x60x14?

A 14 ft eave fits 12 ft overhead doors, which covers most trucks and equipment. Choose a 40x60x16 when you need a 14 ft door for a motorhome, fifth-wheel or tall equipment. The taller frame adds longer columns and more steel, so it costs more, but it is the only way to fit the tallest doors.

What eave height do I need for RV storage?

Most motorhomes and fifth-wheels need a 14 ft tall door, which calls for a 16 ft eave to leave room for the header and door track.

Can a 40x60 pole barn be a barndominium?

Yes — 40x60 is one of the most common barndominium footprints. See our 40x60 barndominium kit page for layouts and the finishes that change the price.

What is included in a 40x60 kit from Western?

Engineered trusses, laminated columns, steel roofing and siding, trim and flashing, fasteners and hardware, framing for doors and windows, and stamped engineering drawings for your site. Concrete, labor, insulation and interior finish are not included.

Do you deliver to my area?

We deliver on our own trucks to Wyoming, Colorado, Montana, South Dakota, Nebraska, Kansas, Idaho, Utah, New Mexico, Texas and Nevada.

Western Building Supply truck hauling a post-frame building package down the highway

Price your 40x60.

Tell us the use, eave height you have in mind and your build-site zip code. We will engineer it for your site and send back a price.

Mon–Thu 7am–5pm, Fri 8am–3:30pm MT

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