http://www.menards.com/main/flooring/ar ... c-6530.htm 3'x4' rubber backed mats are on sale through 12-15-13 $3 after rebate, and 1 mat covers 2 nests (2'x3' for each nest) There is a limit of 4 mats per rebate per house. This is the best price I have ever seen.
I'll get into the making of a MHN (Mallard Hen House) on a later topic. But basically it is a sandwhich of wire mesh, hay/flax, mat, hay/flax, wire mesh that makes up a nest.