12 x 8 Chicken Run Plan

Introduction

This is a stationery design for a 12' by 8' chicken run, complete with roosting areas and hatchling boxes. The 96 square feet of space allows plenty of room for interior roaming in the aviary, while the raised nesting box provides an extra level of security from predators. It also helps you isolate your chickens when you need entry to clean, feed, or repair. The coop can house up to 15 adult birds, and with its gable design and proper insulation, it can provide plenty of shelter in even the harshest weather.

This design is for farmers entering the chicken raising business, but with a desire to expand. The dual hatching cases allow for ease of egg collection and hatchling recovery. The included stairway helps your chickens enter the raised nesting area. Multiple access doors make cleaning, feeding, and harvesting a snap. Use of a certified electric heater can also help during especially harsh winters.

Let's begin!

Materials you’ll need

  • Concrete
  • Bricks
  • Pressure-Treated Lumber
  • Plywood
  • Wire mesh
  • Corrugated roof panel
  • Metal roof ridge cap
  • Wood siding boards
  • Wooden Dowel
  • Pressure-Treated Board
  • Corner Braces
  • Door hinges
  • Door Pulls
  • Surface Bolts
  • Galvanized nails
  • Sheet metal screw with a neoprene washer
  • Wood screws

Step 1 – Foundation Preparation

1.1 Clear and align the ground according to the dimensions in the drawing.

1.2 For the foundation, dig the trenches at least 1′ wide and 1′ deep.

1.3 Fill the trenches to ground level with concrete and let cure, or harden. Since curing times vary between brands, read the packaging for recommended curing times.

1.4 Once the concrete has cured, use standard-sized bricks and lay them across the foundation.
12x8 chicken run foundation preparation

Step 2 – Assemble The Bottom Frame

2.1 Assemble the frame using 3 1/2″ x 3 1/2″ pressure-treated material. You will need two boards cut to 12′ that will be the rim joist and two boards cut to 8′ that will be the joist.

2.2 For the corners use an overlapping joint.

2.3 Secure the beams into the frame with 2×3″ wood screws.

2.4 Using a speed square or carpenter’s square, check the corners to make sure they are 90 degrees.

12x8 chicken run floor framing

Step 3 – Assemble The Wall Studs

3.1 Using 3 1/2″ x 3 1/2″ pressure-treated material, cut ten studs and assemble using the illustrations below as a reference.

3.2 Use 4 1/2″ x 4 1/2″ x 1/2″ L-brackets and 8×1″ wood screws to secure the corners.

3.3 Make sure the corners are 90 degrees using a carpenter’s square or speed square.

12x8 chicken run wall studs assembly

Step 4 – Framing The Floor

4.1 Using 3 1/2″ x 3 1/2″ pressure-treated material, cut two joists using the illustration below as a reference.

4.2 Secure the joists to the bottom frame with 4×5″ wood screws.

12x8 chicken run floor framing

Step 5 – Install Plywood For The Floor

5.1 Prepare the floor sheathing using 9/16″ plywood and the illustration below as a reference.

5.2 Secure the plywood with 2″ wood screws.

12x8 chicken run plywood installation for the floor

Step 6 – Framing The Side Walls

6.1 Using 2 1/2″ x 3 1/2″ pressure-treated material, cut four studs and attach them using the illustration below as a reference.

6.2 Secure the girts to the studs with 4×5″ wood screws.

12x8 chicken run side walls framing

Step 7 – Assemble The Roof Frame

7.1 Use 1 1/2″ x 5 1/2″ material to create 14 rafters.

7.2 Use 1 1/2″ x 3 1/2″ material to create four collar ties and attach according to drawing.

7.3 Use 3/4″ x 7 1/4″ material to create the ridge board.

7.4 Connect the beams with 2×3″ wood screws.

12x8 chicken run roof framing

Step 8 – Install the Roof Sheathing

8.1 Cut sheets of 9/16″ plywood for sheathing the roof using the drawing below as a guide.

8.2 Secure the plywood with 2″ wood screws.

12x8 chicken run plywood installation for the roof

Step 9 – Nesting Box Assemble

It is necessary to make two boxes for the right and left walls.

9.1 Using 1 1/2″ x 2 1/2″ material, assemble the frame for the nesting boxes using the illustration below as a guide. Make sure to take note of the 9-degree slope needed for the roof of the nesting boxes.

9.2 Cover the top and bottom of the nesting boxes with 9/16″ plywood and secure with 2″ wood screws.

9.3 Prepare and install starter course from the pressure-treated lumber with cross section 1/4″ x 3/4″. Prepare the 1/2″ x 6″ wood siding boards in the required amount according to the drawing. Cut the shield’s top part according to the angle of rafter slope. Assemble siding shields with 2″ galvanized nails to the frame beams.

9.4 Cut the trim boards for the wall using the following size of materials: 3/4″ x 1″, 3/4″ x 2 1/2″ and 3/4″ x 3″. Use the illustration as a reference to ensure you are cutting at the appropriate angles.

9.5 Assemble the door frame using 1 1/2″ x 2 1/2″ material according to the illustration and use the same siding material listed in steps 24.3 and 24.4.

9.6 Install two 3″ door hinges using 6×1″ wood screws. Finish the door installation by attaching 4″ surface bolt and 6″ door pull.

9.7 Cover the roof of the nesting boxes with corrugated roof panels and secure with 1 1/2″ sheet metal screws and neoprene washers.

9.8 Install nest box assembles with the help of two corner braces and 8×1″ wood screws. Connect the box frame and coop’s frame by 5″ wood screws.

12x8 chicken run nesting box assembly

Step 10 – Install Coop Doors

10.1 Assemble the frame from the pressure-treated lumber with cross section 1 1/2″ x 2 1/2 ” with 2×5″ wood screws according to the drawing.

10.2 Install door trims from the pressure-treated lumber with cross section 1 1/2″ x 3/4″ with 2″ wood screws according to the drawing.

10.3 Prepare and install starter course from the pressure-treated lumber with cross section 1/4″ x 3/4″.

10.4 Prepare the 1/2″ x 6″ wood siding boards in the required amount according to the drawing.

10.5 Assemble siding shields with 2″ galvanized nails.

10.6 Install three 3″ door hinges using 2×1″ wood screws. Finish the door installation by attaching 4″ surface bolt and 6″ door pulls.

12x8 chicken run door

Step 11 – Window Installation

11.1 Use 1 1/2″ x 1 1/2″ pressure-treated material to create the window frame.

11.2 Prepare 1/4″ wire mesh for window according to the dimensions.

12x8 chicken run window

Step 12 – Aviary’s Door Installation

12.1 Assemble the frame from the pressure-treated lumber with cross section 2 1/2″ x 3 1/2″ with 2×5″ wood screws according to the drawing.

12.2 Prepare 1/4″ wire mesh in the required quantity and install it on the inner side of the frame with the help of industrial stapler.

12.3 Install three 4″ door hinges using 6×2″ wood screws. Finish the door installation by attaching 4″ surface bolt and 6″ door pull.

12x8 chicken run aviary's door installation

Step 13 – Aviary’s Mesh Wall Installation

13.1 Prepare 1/4″ wire mesh in the required quantity and install it on the inner side of the frames with the help of an industrial stapler.
12x8 chicken run aviary's mesh wall installation

Step 14 – Installing Corrugated Roofing

14.1 You will need roughly 140 sq. ft. of corrugated roofing for this step.

14.2 Fasten the panels with 1 1/2″ sheet metal screw with neoprene washer.

14.3 Prepare and install metal roof ridge caps according to the drawing.

12x8 chicken run corrugated roofing installation

Step 15 – Decorate the Coop

Don’t forget to choose the desirable paint for your mood and the colors of your yard. Decorate your chicken coop by giving it a unique and stylish look.

12x8 chicken run

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12x8 chicken run plan