These are a door and a window asset. To use them, you skew them into perspective.
For the window, the instructions are a bit more specific. To use the window, follow the instructions below:

Basically, add a clipping mask on another layer above the window. The clipping mask will make it so that nothing goes outside of it. Then paint or insert whatever you want to be outside or inside the window. After that, you skew the window into perspective while holding Ctrl and moving the points with the Free Transform Tool. Then add whatever outside border you want to edges of the window, and you're done!
Assets:

Example of use (background material here: https://assets.clip-studio.com/en-us/detail?id=1840531):

Door and Skew-able Window