re: #722 irongrampa

4-block is the square in the middle of the room , where you start. This HAS to be as accurate as possible, the entire layout is predicated off that. You simply measure the length of the room, determine the middle, mark it, and then measure the width. I do double measurements, scribe/mark a line one foot or more and align the tiles with those marks. Do that accurately, and the job will turn out fine. Incidwentally, you can disregard any jogs, just do the longest and widest parts for your measuring.

Did I confuse you sufficiently?

I understand all that; I knew about working out from the center of the main area of the room. The contact cement, is it really “contact cement” (I’ve only seen it in small bottlees), or is it something else? And do you put it right over the peel-and-stick adhesive?