Originally Posted by PrettyCurious
If you place a 6" square piece of paper on a 12" one, you will see you needed to divide it by 4, then add your 1/2" seem allowance
Sorry to object, but you have to divide the length measurements by two otherwise you end up with a 3" block. CompulsiveQuilter seems to have done it correctly but somewhere a mistake must have snuck in. What kind of block was it and what size block did you end up with? Maybe we can work out the mistake when we know the details.