Edge Length changing when rotating!? how is this possible?

Hey so i have a square, each edge is 2.45. but when i rotate it 90degrees, two sides go to 2.43 and the others too 2.47

why is this? i discovered this problem when trying to rotate a corridor to create a side facing one, and it wouldnt line up, all the edges had changed length, even though its a perfectly square section.

am i being stupid or is this wierd?

Thanks for any help


Apply (Ctl-A) the object-level scaling.

Best wishes,

sounds like you have scaled it in object mode… tried aplying scale with Ctrl+A before rotating…?

Sweet thanks guys i forgot about applying