DIY Double Run Chicken Coop Plans: 12x10 Walk-In for 20-25 Hens, PDF

DIY double run chicken coop plans for a 12x10 walk-in coop between two 9x10 runs you can rotate, all under one shed roof, for 20-25 hens. Step-by-step PDF.

- Product: Ashgrove twin-run walk-in chicken coop with two walk-in runs, one on each side, under one single-slope roof, building plans
- Format: Digital PDF download
- Pages: 71
- Paper Size: US Letter
- Units: Imperial (feet and inches); main sizes also given in mm
- Dimensions: 12' x 10' coop between two 9' x 10' runs (30' 5" x 10' overall framing); 32' 6-1/2" L x 12' 1-1/2" D over the roof; 12' 8-5/16" at the high back edge
- Style: Long, low coop with a 3/12 single-slope shed roof, butter-yellow board-and-batten, white trim and cedar run frames
- Skill Level: Intermediate
- Includes: 29 illustrated build steps, shopping list, master cut list, cut diagrams, panel layouts, framing drawings, rafter and cutting templates, board-and-batten tables, elevations and floor plan
- Best For: Backyard flocks of 20 to 25 hens that need rotational runs
- Delivery: Instant PDF download after purchase, no physical item shipped

## What's Included in This Double Run Chicken Coop Plan

The Ashgrove is a long, low building with the coop at its heart. The butter-yellow board-and-batten coop with white trim stands in the middle, and a cedar-framed walk-in run opens off each end wall through its own pop door, so the hens can be kept in one run while the other rests. One single-slope roof, 32 ft long, runs over all three bays: low at the front, where three steps lead up to the coop door and the nest box sits at chest height beside it, and high at the back, where a row of three casements lights the coop.

- 12' x 10' walk-in coop with 107 sq ft of floor inside, 7' 2-1/2" high at the front wall rising to 9' 6-3/4" at the back wall, on short posts with the floor 2' 1-1/2" up
- Two 9' x 10' walk-in runs with about 180 sq ft of ground in total, all under the roof, and 8' 8" clear under the front beams
- Cedar Z-brace coop door 32" x 72-1/2" up three steps, and a 31-1/2" x 78-3/4" walk-in door at the front of each run
- Outside nest box on the front wall beside the door, with 5 nests at chest height and a shingled lid for collecting eggs without going in
- Three 110" roost bars with 330" of perch over a removable dropping board
- Two guillotine pop doors, one in each end wall, each with a cleated ramp into its run
- Three six-lite casement windows in a row high in the back wall, louvered vents in both end walls and screened eaves front and back
- Shed roof at 3/12 with 19 identical 2x8 rafters, ice-and-water membrane, architectural asphalt shingles and a 32-1/2 ft gutter along the front eave
- 1/2" hardware cloth on both runs with a 24" apron round the whole building
- Estimated material cost of about $7,100 to $9,100 (prices vary by region and season)

## Chicken Coop with Two Runs for 20 to 25 Hens

The coop gives 4.3 to 5.4 sq ft per hen and the two runs together give 7.2 to 9.0 sq ft per hen, so this large chicken coop houses 20 to 25 chickens. Rotating between two runs lets one rest while the flock uses the other. The 5 nests follow the rule of one nest for every 5 hens, and the three roosts give about 13" of perch per hen at 25.

## File Format, Paper Size and Measurements

The plan is a 71-page PDF on US Letter paper. All dimensions are in feet and inches for standard US lumber, with the main sizes also listed in millimeters. Drawings are not to scale, so always use the written dimensions.

## Who This Walk-In Chicken Coop Plan Is For

This is an intermediate build for DIY builders who are comfortable with a circular saw, a jigsaw, a drill/driver, an impact driver and basic framing. Two people can build it in about 10 to 12 weekend days, plus painting. Spring is the busiest building season, so fall and winter are a good time to price lumber and prepare the site before new chicks arrive. It also makes a practical gift for a backyard chicken keeper.

## How to Use the Plan

1. Buy the plan and download the PDF.
2. Print the shopping list and the master cut list, or open them on a tablet.
3. Buy the lumber, panels, roofing and hardware.
4. Follow the 29 build steps in order, from the site layout and footings to the final details and move-in.

## Digital Product Note

This is a digital download. No physical item is shipped. The PDF is available for instant download right after purchase.

## Terms of Use

This plan is for personal use. You may build as many coops as you like for yourself. You may not resell, share or publish the PDF, its drawings or its renders, and you may not build coops from it for sale without written permission.

## Frequently Asked Questions

### Why build a chicken coop with two runs?

With 20 to 25 hens a single run turns to bare dirt quickly. Two runs let you rest one while the flock uses the other, keep a broody hen or new birds apart, or give the hens more room on rainy days, since both runs are fully roofed.

### Can I build only one run first?

Yes. Build the coop and the right run, close the left pop door and add the left run later, leaving its footings in so the roof can be extended.

### Is a 3/12 shed roof steep enough for shingles?

Yes. 3/12 is above the 2/12 minimum of most shingle makers, provided the whole deck gets ice-and-water membrane or a double layer of underlayment, as shown in the plan.

### Do I need a building permit for this chicken coop?

It depends on your town. The coop floor is 120 sq ft, the roof about 406 sq ft and the high edge about 12' 8-5/16", so check your local rules before you build.

### How do I download the PDF after purchase?

After checkout you get a download link on the order confirmation page and by email. Click it to download the PDF and save it to your computer, tablet or phone.

## More Building Plans from KRMPLANS

Browse the KRMPLANS shop for more chicken coop plans, sheds, greenhouses and cabins. If you have a question about this plan, send us a message and we will be happy to help.