I used plastic bins (large ones from Walmart) with heat lamps but I do not trust the lamp attached to the bin I clamped my lamp on sturdy chair next to bin. I accidentally moved chair and walked out and lamp proceeded to melt top of bin...could have caused fire. Just be careful. Within two weeks, day old chicks were popping out of bin. Could put a cover, like chicken wire over bin for top. At three weeks I moved chicks to outside cage which was a massive rabbit cage off the ground 2 ft. They are flourishing.