Chicken Coop Size Calculator

Your details

Full-size breeds such as Rhode Island Red, Plymouth Rock, Australorp, Wyandotte, or Leghorn.
birds
Bantams are roughly one-quarter to two-thirds the size of standard birds. Includes Silkies, Sebright, Dutch bantam, and miniature versions of full-size breeds.
birds
Chickens that spend more time outdoors can share a smaller coop because they only use it for sleeping and laying.
Affects the nesting box count. If you have roosters, they do not use nesting boxes, so turn this off to exclude non-layers from the box estimate.
In cold climates chickens spend more time indoors. The calculator adds a 20% buffer to the coop area to prevent crowding during winter confinement.
Minimum coop floor areaGood size
24

The minimum interior floor area your flock needs, with a cold-climate buffer if applicable.

Coop area unit labelsq ft
Covered run area60
Nesting boxes2
Total perch (roost) length54
Perch unit labelin
Ventilation opening2.4
Estimated weekly eggs30
Total birds6
Coop floor area24
Run area60
Perch length54

Your flock needs at least 24.0 sq ft of coop space.

  • Your flock of 6 standard birds needs at least 24.0 sq ft of coop floor space when given daily run access.
  • Add a covered run of at least 60.0 sq ft so birds can scratch and forage safely outside.
  • Provide 2 nesting boxes and at least 54 in of roosting perch in total.
  • Expect roughly 30 eggs per week from your laying flock under good conditions.

Next stepThese are minimums - bigger is always better for flock health. Aim for 10-15% extra space if your budget allows, and plan for future flock growth.

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