Install New Drywall and Plumbing Adjustments

all my corners are straight for the most part except this this little dumb piece of 2x4 that's holding up pvc pipe it's secured on top but they wanted to bring it halfway on top anywho the problem is it's overlapping half an inch meaning this part is not going to be straight this section tile's not going to be straight drywall's not going to be straight so what i'm going to have to do is cut it off over there put a few screws just to keep that pipe up there and then move this 2x4 on the inside part so we can still secure a drywall all right well here's a quick and easy way to get nice clean fast cut most importantly on drywall take a drywall square take your razor blade and create a nice clean scorch using the square as a guide bring it this way cut the back holding paper and there you have it clean perfect cut oh wow okay so this has been some of the most frustrating part of this build here these walls it's a finished basement and so these walls work perfectly straight but now after hours of work i finally got everything nice and square some places had to be shimmed some place had to have a double piece of drywall to bring it out this is a system for the shower pan it's