Anni - << while I agree about the architects and find it amusing that Autocad put a spell checker in their latest release, obviously not realizing that spelling is a very low priority among design professionals, let's not leave consultants out of the spelling issue. I've had some of my best laughs from reading reports from consultants. >> Could "wythe" be of recent origin (less than 200 yrs old) and come from a poor speller who just meant "width"? Kathy F.