These square grid windows open and close are based on my Sims3 version. I adjusted their meshes and texture for Sims4.
- polycount: LOD0=LOD1=561, LOD2=66
- window category, 7 simoleons
- compatible with Sep. 3rd patch
- basegame compatible
Note: If the window is placed at intersection of ‘T’-arranged walls, you will see a slit on wall as below. It’s due to thin design of this window. I hope you ignore it, or please place another window to hide it.