At the bottom place thick bedding.
Duck bedding for ducklings.
You may need to add them every day with a large number of ducklings but its affordable one 1000lb bale of stalks will bed down a 1000 duckings until they are old enough to go outdoors you can get 1000 lb bales directly from the farmer for less than 50 dollars.
Bedding for baby ducks.
And it makes a great duck nest.
It produces little dust.
If you are not into diy then there are many useful products available in the market.
I raise mallard ducks and find that corn stalks work very well for bedding.
Large flake wood shavings or pine needles also make good duck coop bedding.
To keep your ducklings safe and provide them comfortable bedding you will need a large plastic storage container.
Our yard is a giant organic garden and used duck bedding either goes into our compost or directly on our perennial plant beds.
The better the duck coop the healthier and happier the ducks.
It should go without saying but do not put fresh duck bedding or duck poo around annual food crops or plants that you intend to eat within the next six months.
Just make sure that it should.
You can try natural things to make it all by yourself.