After using the search function, it seems like most of the questions asked at BYC have been asked and answered before...but I'd like to get some fresh opinions and advice from BYC guys and gals. I have a partridge rock and a new hampshire red and have been planning to build two nest boxes 15"widthx15"lengthx15"height(sloped). Would this be an adequate size for each nest box? Side question...I've been reading on the boards here that hens tend to prefer to lay in specific boxes and sometimes boxes won't get used at all. I also read somewhere plan to have 4 layers per box. So my mind is telling me that I should provide one box for each of my girls (only 2 girls total), but realistically if one of the boxes won't get used, should I even bother building it? What do you think?? Build one or two nest boxes?