Why custom rather than stock
Window openings are not standard, and they are least standard in older houses — which in this part of Florida is most of them. A stock screen is sold to the nearest common size, and the gap between that and your actual opening is what makes a screen rattle in the wind, drop out of the track, or let in exactly what it was bought to keep out.
Every screen we build is measured at the window it is going into. There is no trimming something down to nearly fit.


