The standard AEC (Architectural, Engineering, Construction) term is
gypsum wallboard. Common term is
drywall. Name brand often used for the generic is
Sheetrock by
USG. This room, in fact, has mostly
Toughrock by
Georgia-Pacific. Total cost of materials =
$595. Labor costs to be posted later, as the same contractor is doing the taping and texturing here.

Hanging crew is often different from finishing crew. Inspection of nailing or screws comes in between (tomorrow for me). Then it's mud, tape, more mud, sanding, skim coat, texture, etc. -- depending on how fancy you want it... and how much money you want to spend.