Temperature, humidity and CO2 monitor in a poultry house

Coop Bedding: Sand, Straw or Pine Shavings — Which to Choose

We compare popular materials for absorbency, cost and safety, and explain deep litter and when to change it.

Bedding isn’t just “so it’s soft.” It absorbs moisture and droppings, insulates the floor and affects the air: when it is wet, ammonia builds up in the coop and the birds’ lungs and feet suffer. Choose by the conditions of your own house.

Materials compared

MaterialProsCons
Pine shavingsAbsorbs moisture well, soft, easy to cleanMust be dust-free and mold-free; bought bedding costs money
StrawCheap, warm, hens like scratching in itGets damp fast, can mold, absorbs less
SandDoesn’t rot, easy to scoop, no dustNo insulation, poor absorbency, cold in winter
HayFine for nest boxesNot for floors: molds quickly

What to avoid

Deep litter

Many farmers use deep litter: a 10–15 cm layer of shavings or straw that isn’t replaced entirely but turned and topped up. The layer slowly composts and warms the floor, but it only works with good ventilation and dryness. If the litter turns wet or smells of ammonia, change it.

When to change it

  1. The litter is packed down and wet under the drinkers.
  2. You smell ammonia — people notice it at head height.
  3. Birds sneeze, wheeze, eyes water.
  4. Before a new flock arrives — always a full change and disinfection.

Bedding and climate

Dry litter is half of good air in the house. The other half is ventilation and temperature, covered in the climate article. Dry bedding matters most for chicks in the first weeks.

What it costs

Bedding is a regular expense. So the figure doesn’t get lost, record it separately and include it in your egg cost.