Thomas none of the houses in my terrace have garages, they were built in 1952, when there were very few privately owned cars about! If you are over excited then it’s time for a cold shower!
Even the car bays are relatively new less than 20 years old
good tip the shower, haha
I wasn´t clear enough, I think.
Your picture shows empty space (today called social distance)
thus I thought about the door which has vertical wooden slats and an garage door or barns door with horizontal wooden slats behind (only hypothetical) - this would make a human polarizer the same way as we photogs use light polarizers in front of our cams...and now we have the interpretation for your artwork