That's okay. After plenty of mistakes putting siding on our house, we realized my stepdad is dysflexic (sp?). Anyhow, everything is backwards to him. So when we'd ask for 8 1/4 for example, he'd give us 4 1/8. We finally had him stop doing any measuring and cutting and for Christmas, we found a tape measure that has a recorder in it, so when you say the amount, it plays it back to you.