We have several sub-contractors that we use for the drywall process.
We have one crew that comes in and hangs either 1/2″ or 5/8″ drywall to the existing framework.
We then have a crew that comes in to tape, mud, sand and texture.
A final crew comes in and scraps all leftover material.

The process, depending on how many sheets are hung, can take up to a week to complete because of the 3 step process we use. They also have to wait for the mud to dry before they are able to sand and texture. Depending on the time of year the project is being completed, (winter/summer) drying time can increase or decrease accordingly.