These quality nests are made of heavy galvanized steel with metal bottoms, and plastic perches for easy cleaning. Provide one nest hole for each five hens. Assembly required with use of a pop-rivet gun (NOT PROVIDED, NOT SOLD.) Overall size for 10 Hole is: 33”H x 60”L Hole size is: 7”H x 11 1/2"W. 8 Hole nest size is : 33 H x 48" L (Hole size same as above) Nest bottoms included, nest pads optional.