What size nestbox? May 29, 2007 17:26:53 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Liz on May 29, 2007 17:26:53 GMT What size/style nestboxes do you guys use/recommend? I have seen lots of different ways to make them. Mine are square (16 1/2 cm sides) with a sliding top lid that comes all the way out for cleaning. Is this too small?