1st off I'd put the hinges on top so the door stays closed until your ready to get in the cage and not have to worry about them getting out if its down. I keep my lights on 24/7 and I have the lights every 10' and if the birds are in light then it'll keep them awake and they'll lay. If you wanted to get a timer and after you've got them to laying have it set to go off for 6-8 hours a day as stated in post earlier. I use 1/2x1 and I agree 1/4" is too small unless your using it as a brooder. The poop will eventually clog up here and there but i do have it in some of my pans and its a big pain to keep it clean. I have some of my pens on my website.
www.tlsgamebirdfarm.com Thanks, and GOD BLESS, Tommy