Does anyone know how tobring a framing square into accuracy ?
Firstly, do you know how to tell if its not square? If you do, then depending on how far out of square it is you will have to use a punch and a hammer to either open or close the square as needed. The punch is set on the corner of the square either towards the outer corner or the inner corner. Placing the punch on the outer corner closes the square. Placing the punch on the inner corner opens the square.