The size information is wrong. First, they're only 3" deep total, and 1" of that has to sit outsi...The size information is wrong. First, they're only 3" deep total, and 1" of that has to sit outside the framing, so the ACTUAL jamb depth is only 2", not 3.25" as erroneously listed. Also incorrectly listed is the 24x60 rough opening size. That information is to be ignored - the actual exterior dimensions of the window as it fits in the rough opening should be 23" x 58.5". For the price they seem quite flimsy and don't fully close (?). The point of a window is to CLOSE and prevent wind and insects from passing through them - anything less than that is called a "hole" and would have been a lot less expensive and troublesome than these. Because of the bad sizing information and the apparent cheapness, I would not recommend, and I regret buying 8 of them and waiting over a month for them to be delivered. If you wasted time framing for 20x60, you're in for a nightmare trying to get the exterior spacing correct.
by Mojo