My big order came in from
Scamp and Im working to install their 43 x 19 plexi into my front and rear window spaces (after I epoxy all of the holes left behind when I removed the old windows). Question is, how much wiggle room should there be to accommodate the beading? My opening is 20 and the window is about 19-1/4. Leaves me with 3/8 an inch on each side. Im afraid this is too big of a gap. Please tell me itll work. Is there a rule of thumb, here?