How to Clean a Chicken Coop: Step-by-Step Guide

Clean a chicken coop by removing all old bedding, scraping droppings off the floor and roosts, washing surfaces with a dilute bleach solution (1 tablespoon per gallon of water), letting everything dry completely, then adding fresh bedding at least 3 to 4 inches deep. Full clean-outs should happen every 1 to 3 months depending on flock size and season. Spot-clean under roosts every 7 to 10 days.

Why Coop Cleaning and Ventilation Are Connected

Most guides treat cleaning and ventilation as separate topics. They are not.

Ammonia comes from bacteria breaking down the uric acid in chicken droppings. Wet, warm litter accelerates that process. According to University of Georgia Cooperative Extension, ammonia concentrations above 25 ppm impair a chicken's respiratory tract and make them more susceptible to disease. At 50 ppm, which you can reach in a small coop with soiled litter within days, production drops and illness risk climbs.

Good ventilation clears ammonia out of the coop. But ventilation cannot keep up with a heavily soiled floor. If your coop smells sharp when you open the door, that is both a cleaning problem and a ventilation problem. Fix the litter first, then check whether your vent area is adequate for your flock size using the ventilation calculator.

How Often to Clean

There is no single right interval. Three variables drive the answer.

Flock density. Eight chickens in a 32-square-foot coop produce far more manure per square foot than eight chickens in a 64-square-foot coop. Crowded coops need more frequent clean-outs.

Season. In summer, bacteria in litter work faster and ammonia builds quicker. Winter means less ventilation (some keepers close vents to retain heat) and more time indoors for the birds. Both seasons push toward more frequent cleaning, not less.

Bedding type. Absorbent bedding like pine shavings manages moisture better than straw. Better moisture management extends the interval between full clean-outs.

As a working baseline: full clean-outs every 4 to 8 weeks for conventional bedding management, every 3 to 6 months for deep litter if managed correctly. Spot-clean the area under roosts every 7 to 10 days regardless of method.

What You Need Before You Start

Gather everything before you open the coop. You want to move quickly once you start, especially in summer when disturbed litter sends ammonia and dust into the air.

• Dust mask rated N95 or better. Dried manure dust contains pathogens. Do not skip this.
• Eye protection.
• Rubber gloves or disposable gloves.
• Flat shovel and stiff-bristle brush.
• Hose or bucket with water access.
• Scraper for roosts (a putty knife works).
• Garden sprayer or large bucket for cleaning solution.
• Bleach or white vinegar (both work; bleach is stronger, vinegar is safer around plastic and metal).
• Fresh bedding: pine shavings, hemp bedding, or chopped straw.
• Wheelbarrow for old litter removal.

Step-by-Step: The Full Clean-Out

1. Move or Confine the Birds

Put the flock in the run or a temporary pen. Working around chickens in a small coop is slower and stirs up more dust than working in an empty space.

2. Remove All Old Bedding

Shovel everything out, including the corners and the area beneath roosts. Old litter compacts. Pry it up if it has been sitting for a while. Bag the material or move it directly to a compost pile. Chicken manure is high-nitrogen and will hot-compost quickly when mixed with carbon material like straw or leaves.

3. Dry-Scrape All Surfaces

Before applying any water, scrape the floor, roosts, nesting boxes, and any horizontal ledges. Dried-on droppings are easier to remove dry than when wetted. A stiff brush handles the floor. A putty knife handles roost boards. Pay attention to the ends of roosts where birds perch closest to the wall. That is where manure accumulates fastest.

4. Wash the Interior

Mix your cleaning solution: 1 tablespoon of unscented bleach per gallon of water. Spray or scrub all surfaces, including walls up to the splash zone (roughly 18 inches from floor height), the floor, nesting boxes, and roosts. Let the solution sit for 10 minutes before rinsing.

If you are using white vinegar instead: use undiluted. It will not disinfect at the same level as bleach, but it deodorizes effectively and will not corrode metal hardware.

Rinse with clean water and remove standing water with a squeegee or old towels.

5. Dry Completely Before Adding Bedding

This step is the one most keepers skip and it matters more than the cleaning itself. Adding fresh bedding on top of a damp floor creates the exact moisture conditions that breed bacteria and flies. A wet coop floor in summer can go from clean to ammonia-producing in 48 hours.

On a sunny day, leave the coop open for at least 2 to 3 hours. Run a box fan if you have one and it is overcast or humid. The floor should feel dry to the touch before you add any bedding.

6. Add Fresh Bedding

For conventional management, lay down 3 to 4 inches of pine shavings or hemp bedding. For deep litter, add 4 to 6 inches and incorporate any remaining dry material from the previous layer.

Spread evenly across the floor. Fill nesting boxes with clean straw or shavings.

Return the birds. Their scratching behavior will mix the upper layers of litter over the following days, which is exactly what you want.

Bedding Choices and Cleaning Frequency

Your bedding choice affects how often you need to do full clean-outs.

Pine shavings are the standard for a reason. They are absorbent, easy to find, and cheap. Large flake shavings absorb more moisture than small flake. Avoid cedar: the aromatic oils are hard on chicken respiratory tracts.

Hemp bedding costs more upfront but absorbs significantly more moisture per pound than pine shavings. Keepers using hemp typically report extending clean-out intervals by 30 to 50 percent. Nutrena's backyard poultry blog covers bedding comparisons if you want to compare options in detail.

Straw is not ideal as a primary bedding. It does not absorb moisture well and compacts into a mat that holds humidity near the floor. It works fine in nesting boxes, where it is replaced frequently and does not bear the manure load the floor does.

Sand is useful in hot, dry climates. Droppings dry quickly on sand and can be scooped like a cat litter box. It does not compost and requires a different disposal approach. In humid or cold climates, sand can hold moisture and freeze, which makes it a poor choice.

The Ammonia Problem: Causes and How to Fix It

The stable rewritten query that brings most people to this topic is "how to reduce ammonia in chicken coop." The answer has two parts.

Reduce the source. More frequent litter removal means less manure available for bacteria to work on. Spot-cleaning under roosts, where 70 to 80 percent of overnight droppings land, makes a bigger difference per effort than any other single action.

Remove what builds up. That is the ventilation system's job. The University of Kentucky ID-204 poultry housing guide recommends at minimum 1 square foot of vent area per 10 square feet of coop floor. That baseline assumes reasonably managed litter. If litter management is poor, no amount of ventilation will fully compensate.

Both levers matter. Cleaning reduces how much ammonia gets produced. Ventilation removes what does get produced. Neither one substitutes for the other.

---

FAQ

How do I know when to clean the coop?

You should not need to wait for a visual cue. Smell is the faster signal. If you can detect ammonia from the doorway, clean sooner. If the litter feels wet or clumps when you pick up a handful, clean sooner. A well-managed coop with good ventilation should smell faintly of wood shavings, not sharp or sour.

Can I use bleach around chickens?

Yes, but wait until surfaces are fully rinsed and dry before returning the birds. Diluted bleach (1 tablespoon per gallon) breaks down quickly in air and on surfaces. The fumes are the concern, not residue. Ventilate the coop well during and after cleaning and wait at least 2 hours before returning the flock.

What is the deep litter method and does it actually work?

The deep litter method, described in University of Minnesota Extension resources, builds 6 to 12 inches of carbon-rich bedding over time. Microbial decomposition generates heat at lower layers, which kills pathogens and fly larvae. It works well in winter (the composting generates warmth) and reduces full clean-out frequency. It requires more active management: adding fresh bedding regularly and turning the litter to maintain aerobic conditions. If the litter smells bad, the system has gone anaerobic and needs intervention.

Does cleaning frequency change in winter?

Yes, usually toward more frequent spot-cleaning. In winter, keepers often reduce ventilation to retain heat, which means ammonia has fewer air exchanges to clear it out. Tighter management of litter moisture matters more, not less, when airflow is reduced. If you are closing vents in winter, increase spot-cleaning to compensate.

How do I dispose of old coop litter?

Chicken manure mixed with carbon bedding like shavings or straw is excellent compost feedstock. It is high in nitrogen and will heat a compost pile to 130 to 150 degrees Fahrenheit, which kills weed seeds and most pathogens. Compost for 60 to 90 days before applying to a vegetable garden. If you have more litter than you can compost, most municipalities allow yard waste disposal in green bins. Check local rules for large quantities.