raw · articles · ingested 2026-07-19

Winter Shelters for Community Cats

Source: https://www.bideawee.org/programs/feral-cat-initiative/colony-care/food-and-shelter/shelters/

Animal welfare organization guide, publication date not stated.

Key findings

Interior dimensions: minimum 12”×18”×12” for one cat; preferred 24”×24”×18” for 3–4 cats. An oversized shelter with few cats disperses body heat and stays as cold as outside — bigger is not always better, a direct, quantified precedent for right-sizing a small box. Entrance: 5–6” diameter, placed midway between floor and ceiling, off to one side (not centered); a single entrance is preferred over dual entrances for heat retention. Insulation: 1–2” foam board lining; for extreme cold, foil-faced foam or Mylar/reflective bubble wrap added. Bedding: straw only — never hay, blankets, or towels, since fabric wicks heat away from the body — filling roughly 1/3 to 1/2 of interior height. Elevation: raised on rocks, bricks, or pallets to stop rain splash-up and moisture wicking.

Why it matters for this archive

The clearest, most quantified source on shelter dimensions/entrance/insulation ratios found in this research round — directly sets the size and layout constraints for a 2.5 ft³ experimental box.