I am new to woodworking (3 Yrs) and I am looking for anyone who has the magic bullett which will tell me how to get a piece square. Example: Chest Front and rear peice 24" tall x 42 1/4" wd. (Exactly), Side peice 24" tall x 24" Wd. (Exactly) With raised pannels inserts. Lap joints to join piece together. When checking square (Measuring Diagnoaly) I am 1/8" out on Front piece and 3/16" out on side pannels. My question am I seeking prefection which will never happen or is there something wrong with what I'm doing and what do I need to do to get it perfect.