I've been watching for sometime the discussions surrounding per m2 costs. I've always felt these comparisons on per m2 are flawed and not a fair reflection (even when comparing per m2 cost with one another and potentially from the same supplier). The quantity of fixed versus openable can be different and the amount of doors for example and type.   So I thought I would put a quick excel calculation tool together to get m2 based on the entered info. Which can then be filtered through the