The Deep Litter Method vs Clean-Out Economics
By Bertie Holcombe, Poultry Editor — Published 1 December 2025 · Last reviewed 20 February 2026
Deep litter is not laziness. It is biology. Clean-out is not virtue. It is labor. Here is how to choose.
What deep litter actually is
The deep litter method maintains a composting layer of bedding 6-12 inches deep, managed by periodic addition of fresh material and turning, rather than complete removal. Bacterial and fungal populations in a healthy deep litter bed generate heat, suppress ammonia, and break down manure continuously. A properly managed 10-inch deep litter bed in a well-ventilated coop produces almost no detectable ammonia and is changed only once or twice a year.
The key variables: starting with 4-6 inches of bedding (not 2 inches), adding 1-2 inches of fresh material monthly rather than waiting for the smell to build, and ventilation that removes moisture without creating drafts. A wet deep litter bed goes anaerobic within three days and smells like a municipal sewage facility. A dry deep litter bed with active microbial life smells like a forest floor.
Full clean-out economics
Full clean-out requires removing all bedding to the floor level, cleaning the floor with a dilute bleach solution (1 tablespoon per gallon), and relaying 4 inches of fresh pine shavings. Done monthly for a 6-hen coop, this uses 8-10 cubic feet of shavings per year at $45-70 and requires 2 hours of labor per clean-out — 24 labor-hours per year.
For small urban coops with inadequate ventilation, full monthly clean-out is the only option that prevents ammonia buildup. For coops with good ventilation and adequate floor space, it is expensive and disruptive without providing additional disease protection over well-managed deep litter.
Frequently Asked Questions
Is deep litter safe for chicks?
Deep litter is not appropriate for chicks under 4 weeks old. The composting bacteria include Aspergillus species that can cause brooder pneumonia in young chicks with immature immune systems. Brood chicks on fresh pine shavings or paper towels for the first 4 weeks; introduce them to a managed deep litter bed only after they are fully feathered.