Model # CB36120500

Internet #100320258

Store SKU #785685

Permabase 1/2 in. x 3 ft. x 5 ft. Cement Board


1/2 in. x 3 ft. x 5 ft. Cement Board

  • Lowest water absorption of any cement board
  • Reinforced edges allow for closer fastener application
  • Suitable for both interior and exterior applications
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Frequently Bought Together

Product Overview

Permabase 2-3/4 ft. x 5 ft. x 1/2 in. Cement Board is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture. Permabase is ideally suited as an underlayment or backing surface for tub and shower surrounds, countertops, flooring and a variety of other interior and exterior applications. The EdgeTech reinforced edges allow for easier application of fasteners.

  • Provides a hard, durable surface
  • Able to withstand prolonged exposure to moisture
  • Made of Portland cement, aggregate and glass mesh
  • Long, tapered edges are formed smooth and shatter-proof using double-wrapped EdgeTech technology
  • EdgeTech technology allows for closer fastener application at the edge
  • For indoor or outdoor use
  • Can be used in both interior and exterior applications
  • GREENGUARD gold certified
  • How much do you need? Let our calculator help:

    Drywall calculator button

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Length (ft.)
Product Thickness (in.)
.5 in
Product Width (ft.)
Product Width (in.)
Width (ft) x Length (ft)
3 x 5


Drywall Features
Fire Resistant,Moisture Resistant,Mold Resistant
Product Weight (lb.)

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Customer Questions & Answers

can a l cement board be used in a garden

I want to use it around my bird feeder
Asked by: wally
This board can be used in a garden.
Answered by: CommunityAnswer
Date published: 2016-08-19

How many sheets to a Pallet?

How many sheets to a Pallet?
Asked by: Freyja2316
1/2" x 3 x 5 PermaBase Cement Board comes 50 sheets per pallet.
Answered by: NGCTech
Date published: 2017-08-08

Can this product be used with 304 stainless tell kits for out kitchens? I was hoping to apply ei...

Can this product be used with 304 stainless tell kits for out kitchens? I was hoping to apply either faux panels or clipstone products from home depot as the backer board.
Asked by: Hep
PermaBase Cement board can be used in outdoor kitchens for adhered veneers such as thin-brick or stone using mortar. Clipstone requires a continuous plywood substrate for screw attachment.
Answered by: NGCTech
Date published: 2017-07-28

Can Permabase be used around a fireplace?

Can Permabase be used around a fireplace?
Asked by: Geo
Yes, PermaBase can be used around a fireplace.
Answered by: NGCTech
Date published: 2017-03-20
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Customer Reviews

1/2 in. x 3 ft. x 5 ft. Cement Board is rated 3.7 out of 5 by 3.
Rated 4 out of 5 by from PermaBase Cement Board I used PermaBase for a shower stall remodel and used HardiBacker for the bathroom floor and sink back splash. The advantage of the PermaBase is that it scores more quickly and comes in smaller sheets that are not as heavy. I'm not a weight-lifter but I was able to maneuver the PermaBase sheets pretty well on my own. Working on a ladder and applying this to the shower ceiling, I was glad to able to lift a 3 x 2.5 panel fairly easily. The draw back, oddly, also involves the scoring. It scores quicker, but a little "rough" and you have to cut through the mesh that holds all the components in place which takes some getting used to. It's fairly solid material, but crumbles a bit when you're making a tight fit. It went into the studs very easily with the correct backer board screws. It took stone 4" tiles and mosiac with no problem (even on the shower ceiling). I may switch to HardiBacker on the next shower stall, only because the larger sheets could help me avoid a horizontal seam or two. But the lighter weight of the PermaBase is still appealing. Kinda on the fence as to which I like better. I'd definitely go with HardiBacker for floor or counter top applications, though. It seems tougher, more solid and I believe it's recommended for these applications.
Date published: 2009-04-29
Rated 4 out of 5 by from Good stuff but be careful putting it on walls I am just completing a bathroom remodel with tiled shower surround and floors. This is the first time I've used PermaBase Plus. In the past, I've always used 1/2" Durock CBU's without any problems. The PermaBase is definitely lighter and easier to handle. Cutting was fairly quick and simple. I just used a utility knife to score the line and snapped the board like you would with drywall, then run the knife up the crease on the backside (you'll go through blades pretty fast). Cuts were clean and if you do need to clean up a cut or take some more material off the cut then just use a rasp on the edge. Easy. I really liked the fact that I could drive a screw close to the edge without the disintegrating. One warning. This product has more flex than traditional CBU's. Not noticeable when installed on floors but on the wall. After installing the first shower wall, I noticed a good amount of flex when I pushed on it between studs. More flex than I am comfortable with. The manufacturer and other pros said it would stiffen up once all the seems were properly taped, tile installed and grout hardens. Just to be safe, I added additional blocking support between the studs...midway up the board and at the seems. The framing around the shower was spaced 16" oc but some of the cavities were spaced closer together. Those spaces less than 16"oc were firm and did not need additional support. Only those spaces that were a full 16"oc did I add support. Easy fix and it did stiffen it up to my satisfaction. Good stuff just make sure you add additional support between studs.
Date published: 2016-08-03
Rated 3 out of 5 by from Almost as good I like Permabase because it looks nice compared to Durock or Wonderboard. I would rate it 2nd behind SelectCrete, but I can't find SelectCrete in the Midwest. That board is the easiest and cleanest to score and snap, lighter weight, and has the best edge. But since I can't get that in Ohio, I've been using Permabase and it's almost as good.
Date published: 2009-08-12
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