The fixed coop that costs like a tractor
Most fixed coops start at a price the chicken-tractor crowd would laugh at. This one doesn’t. It houses 3 to 5 hens for $975-$1,275 in materials, and it doesn’t move.
That’s the reason it exists. It borrows the A-frame’s big advantage, which is that the roof and walls are the same pieces, and puts it on a foundation.
| Design | Moves? | Coop | Run | Hens | Build time | Materials |
|---|---|---|---|---|---|---|
| 4x8 A-frame tractor | Yes | 10 sq ft | 16 sq ft | 2–3 | 14–20 hrs | $675–$875 |
| 6x10 A-frame tractor | Yes | 19 sq ft | 33 sq ft | 4–6 | 22–30 hrs | $800–$1,025 |
| 6x8 A-frame coop (this one) | No | 15 sq ft | 26 sq ft | 3–5 | 20–28 hrs | $975–$1,275 |
| 4x6 coop | No | 16 sq ft | 24 sq ft | 3–4 | 18–26 hrs | $1,900–$2,450 |
Look at the bottom two rows. The 4x6 and this design have about the same coop floor and a similar run. The 4x6 costs roughly twice as much and holds one fewer hen at the top of its range.
What the 4x6’s money buys is walls, a raised floor 18 inches off the ground, two windows, lap siding and metal roofing. This design has none of those. Its roof is its walls, it’s covered in mineral-surface roll roofing, and the coop floor sits just above ground on two pressure-treated skids. If you’re happy with that, it’s the cheapest fixed coop per hen we draw.
Why it costs more than the bigger tractor
The row above this one is the odd one out. The 6x10 A-frame tractor has more coop, more run and room for another hen, and it costs $175-$250 less.
The frame is essentially the same, so the money isn’t in the frame. It’s in everything that comes with staying in one place:
- Six solid concrete blocks, three under each skid, each on a 16-inch square of crushed stone 6 inches deep.
- Four rebar ground anchors, one through each corner of the base.
- A buried apron around the whole 28-foot perimeter, pinned with 60 sod staples.
- A stone drip strip along both long sides.
- A bedded run floor: drainage stone under coarse sand or wood chips.
None of that is optional on a coop that stays put, and none of it is needed on one that moves every few days. So the question isn’t which is cheaper. It’s whether you want your birds on fresh grass or behind a buried apron. The chicken tractor guide lays out the tractor side of that choice.
The foundation is six blocks and one careful morning
A tractor forgives bad ground because it leaves. This coop sits on the same spot for years, so the ground under it is part of the structure.
The plan’s first rule is drainage. Pick a spot that slopes away on every side, never the bottom of a lawn. Wet ground under a run turns to mud, and mud is where coccidiosis and bumblefoot come from. No amount of good carpentry fixes a coop sitting in a puddle.
Then clear a rectangle a foot bigger than the footprint all round, take the turf off and save it. You’ll lay it back over the apron later. The six blocks have to be solid, not hollow. The plan’s reason is short: a hollow block cracks under a point load, and it’s a mouse hotel. All six tops go in one plane, set with a string line and a level. Take stone out to adjust, don’t pack soil in.
That’s a morning’s work if the ground is kind to you. Rush it and the whole frame racks.
The same drip line, every year
This is the detail you’d never think of until the coop has been up a season.
A 60-degree A-frame roof sheds its entire load of rain onto a line a few inches out from each skid. On a tractor that line is somewhere new every week. On this coop it’s the same line forever. The turf there dies, the soil washes out, and eventually the buried apron underneath is exposed and the skid never dries.
The plan answers it with a drip strip: 12 inches wide by 2 inches deep of crushed stone along both long sides, laid right over the outward leg of the apron. The two ends don’t need one. They’re gables and shed nothing.
It’s a small line on the material list, and it’s the thing that keeps the apron buried and the base frame dry for the life of the coop.
No windows, and the air leaves at the peak
The spec table shows zero windows. An A-frame has no vertical walls to put one in. Its sloping sides are the roof.
Ventilation comes from the ridge instead. The cladding stops 4 inches short of the peak on both sides, leaving a continuous gap 37 inches long on each slope, screened with hardware cloth and sheltered under a bent aluminum ridge cap. That’s 2.1 square feet, about 60 square inches per hen at five. Because it’s under the cap, it keeps venting in the rain.
It’s the right place for a vent. Warm, damp air rises to the highest point in any coop, and here the highest point is the opening.
The honest limit is summer. With no windows, you can’t add cross flow on a hot night. In a hot climate, give it afternoon shade. The ventilation guide explains why moisture, not cold, is the thing a vent is there to manage.
The run is for the hens, not for you
The run is 26 square feet inside the same sloping sides as the coop. It works well for hens. For you it’s a reach-in.
You get in through a run end door. That’s fine for bedding, feeders and water. It’s awkward for catching a bird who doesn’t want to be caught, because she can always move to the far corner under the lowest part of the slope.
The coop end is better. The whole right slope of the coop lifts as one 36-1/2 by 67-1/2 inch slab on three hinges, with two two-action latches because raccoons open simple hooks. Fit the prop the plan calls for and use it every time. That slab with its roofing on is heavy, and it comes down on the back of your neck while your hands are full of bedding.
At 5 hens the run gives each bird 5.2 square feet, under the 8-10 square feet extension services recommend for a permanent run. At 3 hens it’s about 8.7. So three is the full-time number and five needs yard time. The size calculator will confirm it for your flock.
Why there’s no ramp
Most coops need a ramp. This one doesn’t, and the reason is in the run floor.
The run gets bedded with drainage stone and then coarse sand or wood chips up to the top of the skids. That leaves the coop floor about half an inch above the run surface. It’s a doorstep, not a climb. A beveled threshold on the pop door sill keeps the run bedding from being kicked into the coop.
That makes it a good fit for heavy breeds, older hens and bantams, which can all balk at a steep ramp. The one maintenance job: if the run bedding wears down, the step grows. Top it up.
What this design deliberately does not do
It doesn’t raise the coop floor. The birds live just above grade, so drainage and the apron do the job a high floor does on the other coops.
It doesn’t grow. There’s no wall to extend and no way to add run length without rebuilding the end.
It isn’t insulated and has no windows. And it’s framed to published span tables, not a stamped engineering design. Specs and the 5-page preview PDF are free on this page. The full 39-page plan book is $4.99 on Etsy.