Even the pros do it - when the shed builder came to put up my coop, he realized they'd fabricated the ridge for the roof off of measurements for someone else's shed. So they had to get a new one made and come back to finish later.
They also had the door hinged on the wrong side (it would've banged into the run door if left as is). That at least was a quick fix, just flipped the door and flipped the hardware for the latch.
They also had the door hinged on the wrong side (it would've banged into the run door if left as is). That at least was a quick fix, just flipped the door and flipped the hardware for the latch.