its hit and miss with having those stores cut your box for you. ive done it twice, first time was excellent, guy was almost dead on. 2nd time wasnt so good, not even straight cuts.. how that happens with a panel saw i dont know lol. Lowes is where I have gone, first time they cut out all of them for free and 2nd time they mentioned 2 free cuts and .25 cents each one after but ended up doing them for free. If you go that route and the guy does good offer him a tip