Drywall Types and Thicknesses Compared in Nashville and Middle Tennessee
Topic guide

Drywall Types and Thicknesses Compared

Standard, moisture-resistant, fire-rated, lightweight and soundproof drywall, and where quarter-inch to five-eighths-inch board belongs.

Drywall is sold in several thicknesses and types, and choosing the right one helps a wall or ceiling perform well. Half-inch board is the standard for most walls in homes. Five-eighths-inch board is heavier and stiffer, so it is common on ceilings, in fire-rated assemblies and where extra strength is wanted. Quarter-inch and three-eighths-inch board are used over existing walls and for curved surfaces, while thicker board helps cut sound and resist sagging.

Types vary too. Standard board suits most dry rooms. Moisture-resistant and mold-resistant boards are used in baths, basements and laundry rooms, though none of them is waterproof. Fire-rated board has a special core and is required in certain assemblies, such as shared walls between a garage and living space. Lightweight board is easier to carry and hang, and sound-damping board adds mass and damping for music rooms and offices. In Nashville, where homes mix older plaster with new additions, picking the right board prevents problems later.

Best for

  • Remodelers and builders
  • Owners finishing basements or garages
  • Music room and office projects
  • Homeowners comparing drywall bids

Strengths

  • The right board suits each room
  • Thicker board resists sag and sound
  • Moisture-resistant board helps in damp rooms
  • Fire-rated board meets code where required

Keep in mind

  • Thicker board is heavier and costs more
  • Specialty board is not always needed
  • No board fixes a leak
  • Mixed types need planning on the job
The details

What defines Drywall Types and Thicknesses

Half-inch board

The everyday choice for most walls.

Five-eighths-inch board

Stiffer for ceilings and fire-rated areas.

Moisture-resistant board

For humid rooms, but not waterproof.

Fire-rated board

Used where code calls for a rated assembly.

Sound-damping board

Added mass and damping for quieter rooms.

Lightweight board

Easier to handle on tall or remodel jobs.

Questions

Drywall Types and Thicknesses FAQ

Is thicker drywall better?

Thicker board is stiffer and resists sagging and sound, but it is heavier and not needed everywhere.

Is moisture-resistant drywall waterproof?

No. It resists moisture better than standard board, but leaks must still be fixed.

Which board goes in a garage?

Attached garages often need fire-rated board on shared walls and ceilings. Local requirements apply.

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