"cp" wrote
Matches my memory but may not be that exact number of inches. I remember it as 'suitable for a person of 4ft5in to be able to egress without having to drag any furniture over. A built in sort of window-seat was acceptable in
1972-4 in VA. There is also a memory of having to have that window-seat able to hold up to 300lbs or something like that. Window-seat could not be obstructed (like, used to hold a 70 gallon fish tank).Oh! The window size obviously had to be big enough *and* on the other side, there had to be some way to get down savely to ground level. Since on the outside this window we adapted wasnt but a foot above ground level, it was not an issue. We couldnt have any plants though that would block egress. Inspector quibbled over the tulips but we won that one. We'd have lost had it been a rose bush I think?