I would put some sort of concrete block under each leg. they are less than $2 a piece, and if you really want to pinch pennies you can just use red bricks for 50 cents a piece. Maybe you can find someone who threw such things away. Unless its pressure treated wood I would not let it touch the ground. .
I am a big fan of Pallet floor coops if done correctly they allow the bedding to get access air from underneath and reduces ammonia production. Split water also has somewhere to go if you keep water in a coop.
I have a small pallet sized coop that needs to be rebedded with a cardboard liner because the bedding fell through the pallets so I thought I would share pictures of it.
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This is what it looked like this morning, The straw was eventually scratch through the slots. Normally I put in wood that fits slightly tighter but I use what I had at the time. My only real concern is that predators can not get through. The largest slot is 3/4 of an inch to 7/8ths of an inch. The Chickens are only locked up at night when they are on the roosting bar so anything reaching up will not reach high enough to get to them.
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This time I line the floor with cardboard. If it was warmer out I would have removed the tape but since its cold the tape stays and I will filter it out of my compost pile next year.
View attachment 1601728 The holes did not show up in the picture but I drilled holes in all the cardboard, puncturing works too but the drill is so much faster and its cold! This is one of those extra steps I take that is totally not needed. Making a perfect compost is my top priority. I like to increase available air to the bottom of the litter. Your priorities will be different and likely you will skip this step if you use cardboard liners. Cardboard without holes works fine.
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The final step is the straw, part of the reason why this coop goes through too much bedding as you can see in this picture is that the door (sliding screen door) is at floor level and I should have had a 4 to 6 inch lip to catch the straw. Adding a lip to contain straw is on the project list but for now I will just keep replacing straw. I use Sliding Screen doors because Raccoons are not strong enough to open them.. so much friction in the ones I make that I have to put my weight into them to open them. If you look at the back wall, that's not an external secure wall, there is another breeding coop on the other side. Predators can get through that... just clearing that up if someone asks. It is good for introducing news chicks as they can see and hear each other, but the bamboo branches keep the roosters from doing damage to each other if they try to fight through the wall. Some of my Duplexes have solid secure internal walls but I figured I should save secure resources for external walls and use my scrap materials for internal walls.
Thats just to give you an idea of what to do with a pallet floor coop. FYI they can be very dangerous to walk in which is why I tend to only use them for small coops. If I could get rock solid fresh new pallets I would make walk in coops with them but since I get free pallets I tend to get the crappy ones.