Model # 220023

Internet #100170507

Store SKU #202225

James Hardie HardieBacker 3 ft. x 5 ft. x 0.42 in. Cement Backerboard
0727396200233

James Hardie

HardieBacker 3 ft. x 5 ft. x 0.42 in. Cement Backerboard

  • Lightweight structure that offers strong bonding properties
  • Ready for wallpapering, tiling, painting, or texturing
  • Protects your underlayment against moisture and mold
$13.87 / each
If you buy 30 or more
$12.48 / each
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Frequently Bought Together

Product Overview

HardieBacker cement board is a tile underlayment made for wet areas like kitchens and bathrooms. This cement-based backer board, made of 90% Portland cement and sand, resists damage from moisture and mold and provides excellent tile adhesion. Its formulation and structure results in the ideal combination of strength, uniform composition and performance that no other backer board can provide. HardieBacker cement board was made to be easier to work with so that regardless of how you cut your board, the result is less debris. HardieBacker cement board's superior strength and durability delivers a solid foundation for tile jobs to help protect your work and reputation. James Hardie stands behind HardieBacker cement board with a limited lifetime product warranty.

California residents: see   Proposition 65 information

  • Most preferred brand of BackerBoard by Tile Installers and Contractors
  • HardieBacker 500 cement board (0.42 in. thick) is best used for walls, ceilings and floors
  • Made better - the 90% portland cement and sand formulation provides a solid foundation for your tile with up to 3 times the compressive strength of competitive board
  • Installs better - cuts cleaner for tighter seam lines and less debris
  • Performs better - unique formulation delivers a product with outstanding resistance to moisture and mold
  • Score and snap the board by making 2-3 passes with a utility knife or a carbide tipped blade, place one hand and knee firmly along the score line, then use the opposite hand to pull the board up
  • Cut HardieBacker cement board with snapper shears instead of a grinder for the same clean, sharp edges for straight seam lines while significantly reducing the amount of dust in your work environment
  • Limited lifetime product warranty
  • Non-combustible

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
60
Product Height (in.)
.42
Product Length (ft.)
5
Product Thickness (in.)
0.42
Product Width (ft.)
3
Product Width (in.)
36
Width (ft) x Length (ft)
3 x 5

Details

Drywall Features
Environmentally Sustainable,Fire Resistant,Moisture Resistant,Mold Resistant
Product Weight (lb.)
39lb

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Customer Questions & Answers

I need to cut out for a niche in the shower...

I am not aware of any way to score and break. Is there a way to hand-cut or an approved power tool?
Asked by: Baltimore1000
Score and break works just fine. Score your opening and then an then an X from corner to corner. Be sure to support the backside of the board with some scrap 2x material along the anticipated opening. Use a framing hammer or similar to punch out the hole. I start near a corner and hold the hammer with a twist so the the edge of the face strikes near the score line and just work around the score lines until you have an opening. Using this method, you will have a rough edge to clean up. Generally I just use an old carbide blade in the skil saw and plunge into the cut. WEAR YOUR PPE - EYES, EARS, AND RESPIRATORY and work outside.
Answered by: Wojo
Date published: 2017-07-21

Three questions. I am making four 18" x 18" table tops for outdoor use in NY, covered with 3/4" g...

Three questions. I am making four 18" x 18" table tops for outdoor use in NY, covered with 3/4" glass mosaic tiles. The tables were custom-made by an ironworker with an open top frame with a 1" lip into which the Hardie board will be inserted (and removed for storage during the winter). 1. Will Home Depot cut the 3 x 5' sheet for me? We need four pieces 17 7/8" square. 2. In that 18" span, will the Hardieboard hold up without a plywood or other backing? The heaviest thing on the table might be a flowerpot or a tray with coffee cups. 3. The tile company (Modwalls) recommended using modified latex thinset, then outdoor sanded grout. Do you agree? I've done this before with the wrong materials and the tops eventually deconstructed.
Asked by: NuJulia
My HD will not cut, also HD will do rough cut of lumber so you can get into a car/van. No HD is going to cut 17 7/8. You need to do that at home.
Answered by: Stella
Date published: 2017-05-27

Why aren't these 1/2" How are you supposed to match the Dry Wall around the Shower? This is craz...

Why aren't these 1/2" How are you supposed to match the Dry Wall around the Shower? This is crazy. The durock is listed as 1/2" too but it looked even thinner that these. Best way to cut? Saws or score and snap? Which is best? Thanks
Asked by: jdesan
Welcome to the seemingly crazy world of building showers. One short answer on the thickness -- you have to use mortar on tile in the shower surround and you usually use mastic on tile outside the shower surround, and you always need more mortar than mastic. If you need an exact thickness match for some reason, you shim it out. Scoring and snapping 0.42 HardieBacker precisely for a shower built past a certain rough standard simply isn't going to happen. That's a shortsighted misguided myth the company sells its customers. A diamond turbo blade in a standard angle grinder is the most common solution, as has been mentioned (beware the dust). We've also paid out for fiber cement Hardie siding blades for circular saws. They work great for precise cuts, but they're not worth it unless you're already committed to using this product all the time in multiple showers surrounds. But you will be committed if you do a lot of these. No other tile backer board matches the flexural strength of HardieBacker 0.42. The first time you do a job where someone obviously did something energetic and creative to someone else in a tiled shower stall or alcove and busted a weak non-HardieBacker wall, you'll get committed real fast. I have a longstanding love/hate relationship with this stuff.
Answered by: BuyerBeware22
Date published: 2017-07-19

Why is this only .42" thick?

I'd like to use this Hardibacker behind the tiles around my tub. I removed the bottom row of tiles and cement board that was 1/2" thick. Why is Hardibacker only .42" thick, when most Sheetrock, green-board + cement boards are a full 1/2"? Do I use two 1/4" pcs. (to get back to a 1/2" base) or what else can I do to make up for the roughly 3/32 less difference in thickness, so the newly set tiles will be level with existing tiles?
Asked by: Tedster
In addition to the other answers here that discuss making up the difference with thinset mortar, there will also be some space taken up by a waterproof coating such as 2 or 3 coats of Redgard. The Redgard might account for 0.025-30". Not sure of exact thickness but it is recommended to apply .045" wet thickness in one application brochure. It dries thinner but I didn't see by how much. I had a similar situation and the Redgard plus back buttering the tiles along with some thinset on the backerboard makes up the difference very quickly. Yes, you really should a waterproofing on backerboard all over and NOT just on the seems as you might see some so-called Pros doing in YouTube videos.
Answered by: engr4you
Date published: 2017-06-07
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Customer Reviews

HardieBacker 3 ft. x 5 ft. x 0.42 in. Cement Backerboard is rated 4.0 out of 5 by 52.
Rated 2 out of 5 by from Used this product on a bathroom remodel job where I was installing a 30x60 shower base and cerami... Used this product on a bathroom remodel job where I was installing a 30x60 shower base and ceramic tile. This board is almost impossible to cut with a utility knife as suggested. If you need to cut anything less than 6/7/8" off forget it. It just will not cut properly. I ended up scoring about 10 times and then breaking off with a pair of pliers. To drive the screws through the product is extremely difficult. Predrilling is probably a good idea. Some reviews talk about cutting with power saws grinders etc. the manufacturer strongly discourages cutting this way as the silica powder can cause disease that can be fatal. I would never use this product again unless I did not have to cut. They also claim it's lightweight, not a chance. The Hardie screws are poor quality and the heads strip easily.
Date published: 2017-02-22
Rated 5 out of 5 by from I used this Hardie Backer .42" today and cut it with a cement board circular blade, CMT 7-1/4" Fi... I used this Hardie Backer .42" today and cut it with a cement board circular blade, CMT 7-1/4" Fiber Cement Blade, Model Number: 236-004-07, $44.99 using a dust mask outdoors and it cut like a dream. I have tried cutting other brands with scoring with a knife and had the same results as most people. This product did not crack and chip like Durrock. I found the exact Hardie recommended screws at HD with the self counter-sinking heads and I hope and suspect they will do better then the generic screws I have used in the past. Do not like the idea of roofing nails since they have no holding power whats so ever. I suggest using a impact driver and hardbacker screws.
Date published: 2016-12-17
Rated 5 out of 5 by from I have been installing tile for twenty plus years...hands down this is the most reliable underlay... I have been installing tile for twenty plus years...hands down this is the most reliable underlayment. Yes it is difficult to cut; scoring and snapping will do 90% of the cutting necessary; grinder with a diamond blade and a dust mask will take care of the intricate cuts. In testing I have left scrap pieces outside exposed to the elements for over two full years (sun, rain, snow, temperature changes) and nothing negatively effects it; my micrometer reads it the same! I always mortar and screw it down when installing over the floor, and waterproof my niches and seams when installing in a wet area. Using the newly designed T-25 head screws make all the difference when installing. This product blows away the competition.
Date published: 2017-04-25
Rated 4 out of 5 by from I used this product in a DYI Tiled Shower. I have never built a shower before so time will tell ... I used this product in a DYI Tiled Shower. I have never built a shower before so time will tell if this was the right choice. However I have used Hardie Backer Board on two tiled floor projects and My husband has used Hardie cement sideing on two of our houses so that is way I picked Hardie once more for this project.
Date published: 2017-06-26
Rated 5 out of 5 by from Ardex 8+9 vs Redgard waterproofing experience on HardieBacker. HardieBacker is the best cement bo... Ardex 8+9 vs Redgard waterproofing experience on HardieBacker. HardieBacker is the best cement board on the market. It's solid and it doesn't crumble easily like other brands. It can be cut easily with the proper tools and techniques. I wanted to share my experience when I tried to waterproof it. First, I used RedGard without doing a research because I trusted all the good reviews about it. I followed the instruction and used it on Hardie cement board. After a few days, I checked on it and I was so surprised to find out that I could peel off some areas just like peeling off an old paint. I contacted their customer service and they recommended to apply a primer coat prior to two full coats. Their recommendation wasn't even on the product label and It was clearly not a user mistake. I had to spend a few hours to peel it off from the shower wall on a small bathroom size. No refund/replacement. I bought Ardex 8+9 waterproofing compound online and hoped that it would work based on some suggestions for Hardie cement board. WOW! It was a huge different compared to RedGard. It sticked really well on Hardie cement board. It even sticked on my t-shirts, pants, and other materials. The smell was not as strong as RedGard. The dark grey color was nice too compared to RedGard bright red color. The most important different was the texture. The dried membrane had a rough texture good for bonding with cement. RedGard had a smoother soft plastic-like texture. I would highly recommended Ardex 8+9 on Hardie cement board. Their customer service was fast and helpful when I called them for some questions. Do a research before buying some products from Home Depot.
Date published: 2016-12-01
Rated 5 out of 5 by from Best Board in the Market I have been in the industry for 35 years and I find this board to be the easiest to work with, strongest and best for mold and moisture. I tried all the other cement boards like Durock and Wonderboard, yet, those are messy, less than 50 % cement, hard to cut, and get mold through time. For all those out there, HB can be cut with a utility knife indoor - snap and score ( popping the board up instead of down like dry wall), you can hammer the board and it won't deteriorate, make sure to wet the board to get the best adhesion to tile, and put an additional layer of versabond to match the drywall. Holes are easy to perform as well. I GET 0 CALL BACKS WITH THIS BOARD and NO MOLD OVER THE LIFETIME OF MY INSTALLATION. BEST RETURN ON INVESTMENT FOR SECTION 8 BUILDERS CONCERN ABOUT MOLD.
Date published: 2012-12-03
Rated 5 out of 5 by from Always a dependable product. Delivery was on time and hassle-free. Always a dependable product. Delivery was on time and hassle-free.
Date published: 2017-05-30
Rated 1 out of 5 by from 1 Star Review Rating provided by a verified purchaser
Date published: 2017-04-21
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