My hangar is 43 wide, 40 deep. I have fit two planes in it, but you do have to angle and jockey. Might want to go wider if you can, it will help a lot. And the SR22 is 38.5 feet and if you ever trade for one, you will only have 1.5 feet total to spare. I have a friend that has 48 feet wide and it makes a huge difference in fitting multiple planes.
I’m in the very lucky position of having the opportunity to build a hangar for my SR20. However I would like to fit in a J3Cub or something similar in years to come.
A 40ft width seems std, anyone had experience of the depth needed for two planes. I’m thinking 40x40ft, tried lots of paper models but would like some practical experience.