How do you score backer board?

Asked By: Adonais Gaye | Last Updated: 6th January, 2020
Category: hobbies and interests woodworking
4.2/5 (269 Views . 34 Votes)
The simplest way to cut cement backer board is to score the surface and snap the sheet along the scored line, similar to the way you'd cut drywall. In fact, you can use a drywall utility knife to score backer board, but a better option is a carbide-tipped scoring tool.

Click to see full answer


Just so, which side of Hardibacker do you score?

when you score drywall you snap away from the scored side. In the hardibacker directions it says to snap TOWARD the scored side.

Beside above, can you cut Hardibacker with a circular saw? There are a few different power tools that you can use to cut cement backer board. Again, these will produce lots of dust, so protect yourself with goggles and a respirator. For straight cuts, use a circular saw fitted with a carbide-tipped wood-cutting blade, pushing the saw into the material with slow, even pressure.

Likewise, people ask, how do you cut small pieces of cement board?

Lay your cement board flat, and draw a line with a carpenter's pencil where you intend to cut. Then, place a straightedge along the line and drag either a drywall utility knife or a scoring tool against it. Repeat your cuts two to three times to make them deeper, which will make snapping the board easier.

What kind of screws do you use for Hardibacker?

Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. Backer-On's patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile.

39 Related Question Answers Found

Can you use drywall screws on cement board?

No, you should not be using drywall screws. Drywall screws can corrode from presence of portland cement and lime in mortar and CBU. There are screws that are specially coated to be used with the cement board.

What type of screws do you use for cement board?

Cement board attached to plywood or similar underlayment will hold with only 1 1/4-inch screws; for thick or heavy metal fixtures, use 1 5/8-inch screws. In general, 1 1/2-inch galvanized nails will hold the board firmly in place.

Can you cut cement board with a circular saw?

Cement backer board can be cut with a carbide-tipped scoring tool, just score and snap the sheet, similar to cutting drywall. For straight cuts, use a circular saw fitted with a carbide-tipped woodcutting blade, but here's a little secret: use a blade with the fewest number of teeth you can find.

How do you install backer board?

backer board
  1. Step 1: SNAP A GRID OF CHALK LINES TO MARK THE LOCATION OF BACKERBOARD.
  2. Step 2: WHILE THE MORTAR IS STILL WET, PLACE A SHEET OF BACKERBOARD ONTO IT.
  3. Step 3: SECURE BACKERBOARD WITH SCREWS.
  4. Step 4: FILL THE JOINTS WITH MORTAR.
  5. Step 5: COVER JOINTS WITH FIBERGLASS TAPE.

Is Hardibacker waterproof?


cement backer board is not waterproof,but water cant hurt it,even when soaked in water for months or even years

Is HardieBacker waterproof?

Everything you've come to expect from the most preferred brand of backer board* – exceptional performance, ease of use, and excellent tile adhesion – now with a waterproof composition throughout the board. HardieBacker® 500 Waterproof Cement Board delivers lasting results in less time with no compromise on quality.

Is there a front and back to cement board?

The back of cement board is plain, has no manufacturer-defining stickers and is void of the front-featured grid. Always install cement board with the grid facing out.

What kind of Thinset do you use for Hardibacker?

To save a few bucks, you can use dry-set mortar under Hardi, but if you want to simplify things and deal with only one thinset, use a modified thinset like 253 Gold for both applications. Rialto is a porcelain tile that has deep depressions on the back.

How thick is Hardibacker board?

Cement backer board comes in two standard thicknesses, 1/2 inch and 1/4 inch. The industry standard is to use 1/2-inch-thick backer board on wall tile installations, such as a tub surround.

Is Durock cement board waterproof?


Hence the question “Is cement board waterproof?” Well, here's what some manufacturers have to say about waterproofing: PermaBase (National Gypsum): PermaBase PLus is not a water barrier. Durock (USG): “If waterproofing is desired, use USG Durock™ Tile Membrane or USG Durock™ Brand Waterproofing Membrane.”

Is Hardie board fireproof?

Yes, HardieBacker® 1/4" Cement Board is deemed noncombustible when tested to ASTM E 136 and can be used in conjunction with other noncombustible materials around a fireplace. This does not mean that clearances to combustible building materials can be reduced by using HardieBacker 1/4".

How do you snap Hardibacker board?

To score the board, simply lay it flat on the ground, mark out your line with a straight edge, and follow the line while applying firm pressure with the scoring knife. Once the score is made, use your body weight to hold the board down, then snap the scored part upwards to break it off.

Which side of cement board faces out?

Cement board has a smooth side and a rough side. Face the rough side out if you will be using thin-set mortar adhesive to install the tile but the smooth side out if you will be using latex mastic.

Can you paint cement board?

Using a paintbrush or paint roller, apply the paint on the surface of the cement board. For best results, apply thin layers to the surface of the board, and let each layer dry before applying another one. If any bubbles or cracks occur, stop painting, strip the surface, and re-apply the cement primer.

How do you cut Durock cement board?


To cut DUROCK Brand Cement Board, mark desired size on the board with a rule and pencil. Score both sides and edges with a utility knife through the glass-fiber mesh, and snap the board to size. Smooth cut edges with wood rasp. Cutting with a circular saw with a car- bide-tipped blade is an alterna- tive.

How do you cut a cement board for a toilet?

How to Cut Cement Board Around a Toilet Flange
  1. Measure the size and location of the toilet flange.
  2. Create a homemade cutter by inserting one of the screws close to the end of the piece of wood and screw it all the way through the center point on the cement board.
  3. Insert the other screw about a ½ inch further from the center screw than the radius of the flange.

What is cement board used for?

Cement backer board is mainly used as a sub-surface for tiling. Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete.