The best coop floor bedding absorbs moisture, controls odor, and stays in place

The floor of your chicken coop needs to do three jobs at once: soak up water and droppings so the coop stays dry, break down into compost you can use in a garden, and not pack down into a solid mat that traps ammonia. Pine shavings do all three better than most materials. They absorb moisture quickly, stay loose even when wet, and cost between $5 and $15 per large bag depending on your region and supplier. Cedar shavings look similar but contain oils that irritate chickens' respiratory systems—avoid them entirely.

The depth matters as much as the material. Spread bedding 4 to 6 inches deep on the coop floor. Chickens will scratch and mix it as they move around, which speeds decomposition and keeps the surface from compacting. You will need to add fresh material on top every week or two, depending on how many birds you have and how often they stay inside. In winter, when chickens spend more time in the coop, you may add material twice a week.

Key Takeaways

  • Pine shavings are the most practical choice because they absorb moisture, stay loose, and break down into usable compost.
  • Spread bedding 4 to 6 inches deep and add fresh material weekly or twice weekly depending on flock size and season.
  • Cedar shavings, clay-based cat litter, and newspaper alone all create respiratory or moisture problems and should not be used as primary bedding.
  • A deep litter method—layering fresh bedding on top of old material—reduces labor but requires good ventilation to prevent ammonia buildup.
  • Remove wet or soiled spots daily to extend the time between full bedding changes and keep ammonia levels low.

Pine shavings: the standard choice for most coops

Pine shavings are the most common coop bedding because they work well and cost less than specialty products. Buy the large flakes sold for animal bedding, not the fine dust used for hamster cages—the dust irritates chickens' eyes and lungs. Spread them 4 to 6 inches deep across the entire floor, including under roosts where droppings accumulate most.

Pine shavings absorb moisture quickly and stay loose even when damp, which means ammonia does not concentrate in one spot. As chickens scratch and move around, they mix the shavings with their droppings, speeding the breakdown into compost. After 6 to 12 months, the bottom layer becomes dark, crumbly material you can spread on garden beds or around plants. Many coop owners save this spent bedding in a bin and use it in spring.

The main drawback is that you need to buy it regularly. A small coop with two or three chickens might need one bag per month; a larger coop with eight to ten birds could need two to three bags weekly. Store extra bags in a dry place—wet shavings mold and lose their absorbency.

Materials to avoid and why they fail

Cedar shavings smell pleasant but contain volatile oils that damage chickens' respiratory systems over time. Even small amounts mixed into pine shavings can cause problems. Do not use them, even if they cost less or smell better.

Straw and hay look like they should work but they do not absorb moisture well. They mat down quickly, trap ammonia underneath, and create a damp, smelly environment within days. Chickens also eat straw, which can cause impaction if they consume too much. Use straw only in nesting boxes, where it stays drier and chickens do not scratch through it as much.

Newspaper and cardboard alone do not absorb moisture fast enough. They work only as a base layer under shavings, not as the main bedding. Clay-based cat litter dries out droppings but creates dust that irritates lungs and does not break down into compost. Sand drains well but does not absorb odor and is heavy to replace.

The deep litter method: layering bedding to reduce work

The deep litter method means adding fresh bedding on top of old material instead of removing everything at once. Start with 6 inches of pine shavings. Each week, add 2 to 3 inches of fresh shavings on top without removing the old layer. The bottom layers heat up as they decompose, killing bacteria and parasites. After 6 to 12 months, remove all the bedding at once and start fresh.

This method cuts the number of times you buy and haul bedding, but it requires good ventilation. The decomposing material produces ammonia, which can damage chickens' eyes and lungs if it builds up. Your coop needs at least one vent near the top and one near the bottom, positioned so air flows through without creating drafts on the roosts. If you notice a strong ammonia smell when you open the coop door, add more vents or switch to replacing bedding more often.

The deep litter method works best in larger coops where chickens have room to move away from the bedding pile. In a small coop, the material compacts faster and ammonia concentrates more easily.

Spot-cleaning daily keeps ammonia down

Remove wet or soiled bedding every morning or evening, depending on when you visit the coop. Chickens produce most droppings at night while roosting, so the area under roosts gets wet first. Scoop out the wet material and replace it with fresh shavings. This takes 5 to 10 minutes and extends the time between full bedding changes by a week or more.

Pay special attention to nesting boxes. Hens spend time sitting in boxes during the day, and their droppings accumulate there. Check boxes daily and replace soiled bedding so eggs stay clean and hens do not develop infections. Nesting box bedding can be straw, shavings, or a mix—use whatever stays in place best when hens scratch.

Seasonal changes in bedding needs

In summer, chickens spend less time inside the coop, so bedding stays drier and you may only need to add fresh material once a week. In winter, when birds stay inside more, moisture builds up faster and you may need to add material twice weekly or switch to the deep litter method.

Cold, wet weather also means bedding gets tracked outside more often. Lay down a mat or board at the coop door so chickens can wipe their feet before entering. This keeps the coop drier and reduces how often you need to replace bedding.

Frequently Asked Questions

Can I use wood chips from my yard instead of buying pine shavings?

Large wood chips do not absorb moisture well and take years to decompose. Stick with commercial pine shavings, which are processed to the right size. If you have a wood chipper, you could chip pine branches into small pieces, but this takes time and equipment most people do not have.

How do I know if ammonia is building up in my coop?

You will smell it first—a sharp, eye-watering odor when you open the door. If you notice this, remove bedding more often, add more ventilation, or switch from the deep litter method to weekly full changes. Ammonia damages chickens' eyes and respiratory systems, so do not ignore the smell.

What do I do with old bedding after I clean out the coop?

Spent pine shavings mixed with droppings make excellent compost for gardens. Pile it in a bin or corner of your yard and let it sit for 6 to 12 months. The heat from decomposition kills most pathogens. Once it is dark and crumbly, spread it around plants or mix it into garden beds. Do not use it on vegetables you eat raw unless it has aged at least a year.

Do I need bedding on the roosts or just on the floor?

Roosts are bare wood or branches—chickens do not need bedding there. Bedding goes only on the floor below roosts, where droppings fall. The area directly under roosts gets the most droppings, so check it first when spot-cleaning.

Can I mix different bedding materials together?

Pine shavings mixed with a small amount of straw in nesting boxes works fine. Do not mix pine with cedar, and do not use clay litter or sand as a base layer under shavings—they do not absorb moisture the same way and create wet pockets. Stick with pine shavings as your main material and add straw only in boxes.