Cement Board

PermaBASE PLUS® Cement Board

Same qualities as PermaBASE® Cement Board but weighs 15% less


3-Part Guide Specs




Lightweight, rigid substrate

For interior and exterior applications
  • Moisture & Mold Resistant
  • Easier Cut & Faster Install
  • Smoother Surface / Stronger Bond
  • EdgeTech® Reinforced Edge

PermaBASE PLUS® Cement Board has the same qualities built into PermaBASE® Cement Board but weighs 15% less. When you need to lighten your load, consider PermaBASE PLUS for both interior and exterior applications.


  • Stays intact when exposed to water; will not rot, disintegrate or swell – built for the long run.
  • Achieves the industry’s lowest water-absorption rating (ASTM C473) – offering better installation.
  • Helps inhibit mold growth with the highest possible score on mold tests (ASTM D3273 and ASTM G21).
  • Resists impact and remains dimensionally stable – extending the life of your project.
  • Holds up to toughest conditions.
  • Lightweight and easy to cut – speeding up installation.
  • Reduces job site waste – easier, cleaner cut.
  • Durable substrate for direct-applied coating systems.
  • Meets UL classifications for one- and two-hour fire-rated assemblies.
  • Building code approved – one substrate that does the job of many

Interior Applications

Exterior Applications

Video: PermaBASE PLUS® Cement Board



Products that suit any project criteria

Product Details


Cement Board Masonry Veneer, Cement Board Stucco, Outdoor Living, Shower, Bathtub, Accent Wall, Floors, Fireplace, Sauna / Steam Room, Kitchen, Heat Shield


EdgeTech® Reinforced Edge




36", 48"

Related Resources

Product details and technical documentation

Drop-In Specs


UL GREENGUARD Certification

Frequently Asked Questions

Ready to answer your product and installation questions

What kind of fasteners do I use to install PermaBASE PLUS® Cement Board?

Corrosion resistant screws or galvanized roofing nails. Strongly suggest PermaBASE screws since they do not have nibs like competitor screws.

What do I tape the PermaBASE PLUS® cement board joints with?

2” Alkali resistant mesh tape and mortar mix.

How much lighter is PermaBASE PLUS?

PermaBASE PLUS is 17% lighter than standard PermaBASE cement board.

What is the fastener spacing for interior wall applications?

Every 8” o.c. along the perimeter and field of board.

8 Design Center

Designs & Resources

Find product details and technical documentation in the Design & Resource Center.

Explore Now
Expert connection 800 national 560x320 2024

Expert Connection

Discuss your project with PermaBASE experts who can help guide your product selection.

Get In Touch

Need Technical Information?

Call 1-800-NATIONAL®

National Gypsum Company is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.