Making a sideview bird box Mar 22, 2019 8:51:17 GMT via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Amanda on Mar 22, 2019 8:51:17 GMT Hi PaulSorry to be a pain, do you know the thickness of the internal walls please. I am guessing my wood is too thick. It is the 11cm widthMany thanksAmanda