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Thread: Ripping WonderBoard...

  1. #1

    Default Ripping WonderBoard...

    I've got a concrete overlay floor. I want matching basboards. The overlay contractor needs WonderBoard cut and installed to get a decent thickness. I've researched cutting techniques for wonder board, but have not found the answer to this question:

    Can WonderBoard be cut on a table saw using a carbide tipped blade (or other special blade)? For making several linear feet of 3-4" strips, this would seem to be the fastest way and also provide the straightest edges. Anyone know if this is possible?

    Thanks for any help.

    -Chris

  2. #2

    Default

    Won't traditional scoring and snapping work? Not sure what your application is, but why would the edges need to so clean. You can always use a shurform plane to clean up the edges afterwards.

    If you must have really clean edges, I don't think the table saw is your best option. I have cut Wonderboard on a wet saw with good results--makes a nice clean cut with no mess. I have also cut it with my circular saw with an abrasive blade in it--it was really messy and there was lots of flying debris (sand/stones. etc.) I would not try that again. For this reason, I would not attempt on a table saw. Finally, a jig saw with a tile blade would probably work well with a lot less mess.
    Last edited by Andy Ring; 02-26-2005 at 11:44 AM.

  3. #3

    Default

    Quote Originally Posted by Andy Ring
    Won't traditional scoring and snapping work? Not sure what your application is, but why would the edges need to so clean. You can always use a shurform plane to clean up the edges afterwards.

    If you must have really clean edges, I don't think the table saw is your best option. I have cut Wonderboard on a wet saw with good results--makes a nice clean cut with no mess. I have also cut it with my circular saw with an abrasive blade in it--it was really messy and there was lots of flying debris (sand/stones. etc.) I would not try that again. For this reason, I would not attempt on a table saw. Finally, a jig saw with a tile blade would probably work well with a lot less mess.
    Again, this is being used for baseboards. The 1/4" board is going to be overlaid with concrete and stained to match the concrete overlay floor. The top edge will need to be fairly smooth so it has the effect of a tile baseboard (sans the grout lines). I heard that scoring with a utility knife tears the blades up and doesn't break cleanly, but I have not worked with it before, and may not actually be the case. Thanks for your advice--I will forget the table saw idea. The wet saw sounds good, but I don't have access to one. I may go the jig saw route, I'm just not sure I've a steady enough hand. Maybe I could rig some sort of guide up for the saw.

    -Chris

  4. #4

    Default Hardiplank blade

    I've had good luck using the 7-1/4" Hardiplank carbide saw blades in my circular saw on cement board. Yes you can use a regular carbide blade, but it is extremely dusty and the blade wears out fast. The hardiplank blades last alot longer and cause less dust. I've seen the Hitachi brand hardiplank blades in 10" and 12" but I've never cut any cement board on the table saw. Be sure to take proper safety precautions while cutting cement materials.
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  5. #5

    Default

    What about using Hardiboard? If it will work, its' a lot easier to cut than Wonderboard and gives cleaner edges. You can cut it on a tablesaw no problem.

  6. #6

    Default Thanks, guys.

    I will look into the Hardiboard option and will also check out the blade suggestion regardless of which board ends up working.

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