40x60 Pole Barn Kit: Layout, Post Count, 14 or 16 ft Eave, Starting Price

How a 40x60 lays out: two valid answers

Sixty feet divides evenly two ways, and the configurator checks both:

• Three bays of 20 ft with 6 in C-purlin: four truss lines, eight posts. Fewer trusses and posts, heavier purlin.
• Four bays of 15 ft with 4 in C-purlin: five truss lines, ten posts. One more truss and two more posts, lighter and cheaper purlin.

Which one is cheaper depends on the day's truss, post and purlin pricing, so the configurator runs both and shows the lower one. Your materials list spells out which layout you are getting so your crew sets the posts on the right centers.

Each 40 ft truss carries two slopes of about 21 ft of rafter at 4/12 pitch; with the 16 in overhang the panels cut to roughly 22 ft 4 in. Purlin rows run the full 60 ft on each slope at no more than 48 in on center. Ridge cap covers the peak; rake trim finishes both gable ends.

14 ft or 16 ft eave?

Fourteen feet is the common choice at this width: it clears a combine, a dump truck or a fifth-wheel. The configurator prices 14 ft on 6x6x20 posts. Go to 16 ft, the height a lot of people search for in a 40x60x16 pole barn kit, and the posts move up to 8x8x20 to carry the extra height. That adds post cost and a little panel length but nothing else in the kit changes. Enter 16 in the configurator and watch the price move; it is usually a smaller step than people expect.

How PRC sizes a kit

• Trusses: 4/12-pitch steel web trusses matched to the width, one at every truss line including both ends.
• Posts: treated 6x6x16 to a 13 ft eave, 6x6x20 to a 15 ft eave, 8x8x20 above that. Two bags of concrete per post. One post under each end of each truss.
• Bays: the space between truss lines. Bays up to 15 ft use 4 in C-purlin; bays up to 20 ft use 6 in. 8 in purlin is never used on trusses. The configurator picks the lower-cost combination for your length.
• Purlin rows: never farther apart than 48 in on center, running the full length of the building on each slope.
• Roof: 26 ga ribbed metal panels, 36 in coverage, cut to the slope length with a 16 in framing overhang. Galvalume (25-year finish) or White SMP (45-year finish). 29 ga available.
• Trim and hardware: ridge cap and gable rake trim in 10 ft 2 in pieces, truss-center and truss-to-post bolt sets, washer screws by the 250-count bag.

Working rules used by PRC to count materials, not an engineering design. Your permit office may require sealed drawings; see the permit note on the pole barn kits page.

Getting a 40x60 kit to your site

Forty-foot trusses and 22 ft panels are a long load. PRC delivers it, cut to length, to your site. Delivery: $200 within 120 miles of our yard, $285 beyond, final delivery cost confirmed at order based on location. Standard sizes are usually ready 2–3 weeks after the deposit clears; custom sizes are confirmed at order. See Mississippi, Louisiana, Alabama or Texas delivery details.

What a 40x60 kit does not include

Slab, sidewall and endwall panels, girts, doors, insulation, gutters, engineering and permits are not in the kit price. Enclosure is quoted on request. At this footprint, more jurisdictions ask for sealed drawings than at 30x40; check with your permit office before you order.

Related

All pole barn kit sizes · 30x40 pole barn kit · Gable end extension · C purlin prices and spacing · Installed option