When I first got chickens I couldn't keep my eggs clean . I set up multiple nest and the would all lay and roost in the boxes, crapping up my eggs. So this was what I did. and since I needed another set of boxes i thought I'd put up this design for all my BYC buddies. I like to use pressure treated 2x4's for this project. for my 2'x3' box (twin nests) cut the following 4 x 1' 2x4 2 X 3 ' 2x4 2 x 2' 2x4 1 x 1' 8 1/ 2" 2x4 1 x 2' 2x2 assemble as shown note the 3' pieces are inside the 2' ones keeps the depth to 2' screw it together add 1/2" hardware cloth I like the heaver gauge cause I got fat chickens. staple it or fold over some nails on it and put the 2x2 down the center line for extra support now here is the trick. adding the legs for the stand put a bit of backward angle to it so the eggs roll to the back.(offste about 1 1/2 " should do the trick) now the privacy boxes (shy birds) I set these back about 2 " or so to give them good access. I bought the boxes from lowes they are 16x14 storage boxes. this leaves about 10" in the back which can poke out of the chicken coop or put a door on it like i did makes for easy poop free collection and I dont have to hover over the chickens to get the eggs right away. they have been laying in these boxes for years and flock right to em.