Yeah absolutely. My friend used to do cad drawings for a shutter company. Sales people would try and submit changes to the measurements they fucked up only to be told it's too late because it's already on the boat from China. If they didn't realize it was a bad measure and only learned once the installer is on site then guess what? That window is gonna be empty for a few weeks because those boats don't move very fast. All to undercut the people who sell the more expensive stuff made in Mexico.