Pivot shoe size

Question

I measured the channel depth to be 9/16. I assume 15-118 is the right size. I want know if I should buy one size smaller, perhaps 15-015

Tom · Accepted Answer

Thanks for posting. I recommend removing the shoe from the window and measuring it directly, rather than the channel itself. That will let you know exactly what shoe you need. Keep in mind the most important measurements are the width and thickness.