how to charge for drywall finishing
1 This price is not going to include the paint or primer. 2  According to the price mentioned above, a 500 square foot room can cost anywhere from $175 to $400 to tape and finish the drywall process. 3  For those that want to tape the drywall themselves, plan on paying around $0.10 to $0.32 per square foot to complete the job.