u/707-5150

Hello I have a bathroom window that doesn’t have a screen and I can’t figure out what type of replacement it needs.

The left top and right sides have a large edge over the recessed area for the screen. I can’t even find what type of window this is even called.

I measured 20 7/8 x 33 1/2 inside the groves but the screen I have won’t fit inside.

Do I need to find a special screen or just make the screen smaller to wiggle in?

Thank you for your help!