In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Heat loss Calc, correct wi ndow measurments
The many heat loss calculation instructions I have found tell you to measure the windows or enter the window dimensions, but what should I measure? glass edge to glass edge, sash to sash, use the actual frame size of the window etc? What about when looking at a window catalog which provides a rough in size?
this seemingly critical piece of information is missing from everything I have read so far.