A pallet chicken coop built right saves you the siding and almost nothing else: our 6x8 pallet-clad coop costs $2,850 to $3,800 in materials against $2,900 to $3,750 for the same coop in bought siding, and it adds about 10 hours of pulling nails. The frame, floor, roof, hardware cloth, hinges and roofing are the same lumber and the same money either way. If you came here for a $100 coop, this is the page that tells you why that coop is a hazard, and what free pallet board is genuinely good for.
That’s the honest version of “free pallet chicken coop plans,” and it’s the opposite of what most pallet-coop posts say. They’re not lying about the pallets being free. They’re skipping the other 90% of the bill.
What the pallets replace
Our 6x8 pallet coop is the 6x8 walk-in shed coop with pallet board hung as exterior cladding instead of lap siding. Same 72-inch walls, same 37 sq ft of floor and 60 sq ft run, same 3 nest boxes, same three 49-inch roost bars, 3.3 sq ft of vent, rated 7 to 10 hens. The materials list calls for about 30 pallets, 408 sq ft of deck board to harvest, in lengths of 32-3/4 inches and up.
What changes: $50 off the low end of the materials bill and $50 on at the high end, because the siding line turns into house wrap and tape, 26 1x4 furring strips, four gallons of penetrating stain, joint sealant, three metal-cutting recip blades and cut-resistant gloves; the list runs 40 items against the plain coop’s 31. Build time goes from 30 to 38 hours to 38 to 50, plus about 10 hours stripping pallets. Call it 18 to 22 extra hours to save the siding.
Why the frame can’t be pallets: pallet lumber has no grade stamp. A span table works because the stamp tells you what the board is; pallet deck boards are mixed low-grade hardwood, already loaded and cycled, and there is no honest number to put against a floor joist. The plan frames every wall, floor and roof in ordinary stamped 2x lumber and puts pallet board only where it carries no load. That’s the whole design decision, and it’s why this is a $2,850 coop and not a $100 one.
Reading the stamp before you load the truck
Every pallet that crossed a border carries an ISPM 15 mark: the IPPC wheat symbol, a country code, a facility number and a treatment code. The treatment code is the only part that matters to a chicken.
HT means heat treated, the wood core held at 56°C (132°F) for a set time, nothing added. University of Maryland Extension’s garden desk calls HT pallets safe for reuse, including vegetable beds. Take them.
MB means methyl bromide, a fumigant. The same extension answer says MB pallets should go to hazardous waste, not into anything you’ll live near. Leave them, and leave the pile they’re on.
No stamp is the common case for pallets that only ever moved inside the US; domestic pallets have no treatment requirement. An unstamped pallet is usually plain wood with no history, which is why the physical checks matter more than the mark: reject anything wet, moldy, stained, oily, or soft under a thumbnail. A pallet that carried chemicals looks like a pallet that carried chemicals. One more: grocery and feed-store pallets are the clean ones. Avoid anything from a chemical plant, a paint distributor or a mechanic.
The stripping job, by the hour
The plan budgets about 10 hours to strip 30 pallets, roughly twenty minutes each, and that’s where the three metal-cutting reciprocating-saw blades on the materials list go: cut through the nails instead of pulling them, then sink what’s left with a nail set. Wear the cut-resistant gloves on the same list; deck boards split along the grain without warning.
Keep deck boards 32-3/4 inches and longer, the plan’s minimum, and reject anything split, stained or soft. The boards hang horizontally on vertical 1x4 furring, 3/4 inch in front of house wrap, as a ventilated rainscreen, so you’re never hunting for the 8-foot boards that pallets don’t give you. The wrap is the weather barrier; the boards are the look.
Insulated pallet coop
Nobody should stuff a pallet’s cavities with fiberglass and call it insulated; a 2-inch pocket open at both ends is a mouse motel. If you want an insulated pallet coop, you insulate the framed wall behind the cladding exactly as you would under siding: rigid foam between the studs, a vapor-open interior board, and the vents stay open all winter. The insulation guide has the R-values and the mistake list. The pallet board on the outside changes nothing about it.
Where pallets are honestly worth it
Cladding, as above. Nest box fronts and dividers, where the rough board doesn’t matter. Run gates, if you frame them in 2x and skin them. Compost bays beside the coop, which is where pallets are actually brilliant. The materials guide covers what grade of lumber the structure needs and why we don’t bend on it, and the cost breakdown shows where a 6x8’s money really goes: hardware cloth, roofing and fasteners are the big lines after lumber, and pallets touch none of them. Quarter-inch, 19-gauge hardware cloth on every opening (129 feet of it on this plan) and the 12-inch buried apron stay on the list; the predator doesn’t care what the siding cost.
The plan
The 6x8 pallet coop page has the full cut list, materials table, the 30-pallet count and the cladding layout free. The $4.99 Etsy book is the same plan as a printable PDF. If you’d rather skip the stripping and spend the $50, the sided 6x8 walk-in is the same coop finished a weekend sooner.