So I ordered 25 (+1 Free Rare) from McMurrey Hatchery. 16 of them will be xRocks and the others are laying pullets. I'm all set for them for food, quik chick, feeder, water, brood lamp, etc. I was planning on keeping them in the 'brood box' for about 8-12 weeks as has been suggested. ((The meat birds may not make it outside...?)) We had moved here a few months ago and have a BUNCH of cardboard boxes so I'm planning to make the technologically sound cardboard brooder from kathyinmo's brooder page I have an infinate number of cardboard boxes and the brooder will be in my office during 'the time'. What size should I make the box for this many chicks? Should I keep them in a small cardboard box then transfer them to a larger construct afterwards? Should I keep the meaties and layers seperate? I don't want them to be cramped but I don't want them to get lost in a ginormous brooder either. Input appreciated!