How do you hang drywall vertically?

How do you hang drywall vertically?

Why is drywall not hung vertically? Commercial: Hang the drywall vertically. On commercial jobs, fire codes often require seams to fall on the entire length of the framing, so the drywall must be hung vertically. Hides uneven studs – Hanging horizontally also allows the drywall to flow over the framing so that bowed studs create less of a problem.