About to buy two large sofas for the house. The sofas each is 91cm high, 99cm deep and 220cm wide. The door it needs to go through is 81cm wide, obviously leaving me with 18cm short as the depth is what matters. Now, can 18cm be made up by tilting the sofa slightly forward to negotiate the depth issue and making it smaller. May be a weird question but is there a formula to work out how much I gain by tilting the sofa?

, and the worst possible case figure i get is 86cm width. So with a bit of rotation and cushion squishing you should be fine