I have a double roost 12’ long at different heights. Poop board depth is 3’. Back roost is 12” from the wall. The other roost is centered in what remains of the poop board distance. There isn’t quite 12” between the boards or from the front roost to the edge of the poop board. This is due to the width of the 2x4 (narrow side up), so it’s almost all 12” spacing, almost but not quite.
I’m gonna say the biggest drawback and one that I wish I had room to permanently fix would be to separate the two roosts about 15”-18”. I believe that would help with the nighttime pecks as they are trying to get settled to roost. I did spread the roosts out once over the poop board at 4’, but that depth made it too hard for me to clean and took up a valuable one foot of landing space for the chickens so I changed it back.
My boy’s tail feathers do lay over the back roost as he always roosts on the front board facing forward. Sometimes one of the hens will scoot in underneath his tail feathers.
I have made many changes over the 15 months I’ve had birds in the bigger coop. I just can’t be satisfied. This picture is of the poop board at 3’. And my roosts are about 2” higher in this picture than they are now. These are juvenile birds (for pic comparison.)
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This picture was made when I was trying out the 4’ poop board and lowered roosts. I did like the added distance between the two roosts.
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Now, as far as cleaning the boards I prefer scraping with a 10” metal, scraping knife. I do have an old, broken handled hoe that I used when the board was 4’. However, the results of scraping isn’t near as pretty as a bed of sand/PDZ. Those smears can be rough looking at times! After I scrape the board, I scatter a thin layer of PDZ across the board. It helps by not letting the wet poops stick as bad when it is dropped.
One difference in the two pics above is the edge of the board. I prefer having a “hangover” board so I can just scrape the poop right into the bucket that is held slightly under the front edge. It’s much easier and poop doesn’t get on the finished board edge.
When I cleaned my coop this fall I changed the board once again. I just had to try the poop board with a bed of sand/PDZ. It is okay scooping the poop, but it takes me several more minutes to clean each morning. Doing it this way I have four 12’ lines of poop to scoop. I also will use more sand by doing it this way. I don’t have any pictures of the sand bed poop board.
I dare say many keepers have made numerous changes trying to find out what’s best for them. Surely to goodness I’m not the only one.