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Old 11-26-2012, 12:48 PM   #1
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Cut CMU on the long dimension


I have found a lot of articles on cutting a CMU cross wise but not the long direction. Any advise would be welcome on the correct procedure and tools.
Thanks.

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Old 11-26-2012, 03:51 PM   #2
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Cut CMU on the long dimension


It takes a 20" saw to cut through in one pass. What are you trying to do?

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Old 11-26-2012, 04:29 PM   #3
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Cut CMU on the long dimension


I want to cut the CUM in half the long way - don't necessarily need to do it in one pass.
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Old 11-26-2012, 05:56 PM   #4
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Cut CMU on the long dimension


aren't 4" grinders & diamond blades wonderful ?
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Old 11-26-2012, 05:58 PM   #5
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Cut CMU on the long dimension


You can put a 7 1/4" diamond blade in a skil saw and cut both sides leaving a small connection in the middle that will break by simply tapping the block.

Very dusty, and it will burn up your saw eventually, but it does work.
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Old 11-26-2012, 09:02 PM   #6
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Cut CMU on the long dimension


I'm not trying to sound smart, but if you have a lot of them, why not just buy the correct width right away? The reason I ask is because we can get a multitude of width, all readily available here 1", 1 5/8", 2 5/8", 3 5/8", 4 5/8", etc.....
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Old 11-26-2012, 09:27 PM   #7
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Cut CMU on the long dimension


Yeah, just buy 4x8x16 CMU and be done with it.
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Old 11-27-2012, 10:13 AM   #8
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Cut CMU on the long dimension


Thanks - Never knew odd sizes existed (too much relying on the big box stores) - called a local masonry supplier (Acme Brick) - they have them in stock
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Old 11-27-2012, 02:46 PM   #9
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Cut CMU on the long dimension


But we still don't know why you want to cut them in half!
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Old 11-28-2012, 09:44 AM   #10
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Cut CMU on the long dimension


I am building a new CMU column that needs to be the same height as an existing wall, if I use a full height CMU for the top row the new column will be 4" to high.
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Old 11-28-2012, 10:00 AM   #11
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Cut CMU on the long dimension


Then you do not want a 4x8x16, you want an 8x4x16 half-hi.
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Old 11-29-2012, 11:37 PM   #12
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Cut CMU on the long dimension


Quote:
Originally Posted by Tscarborough View Post
Then you do not want a 4x8x16, you want an 8x4x16 half-hi.
Is it an 8" half course solid, or a 4" solid???????
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Old 11-30-2012, 05:52 AM   #13
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Cut CMU on the long dimension


the world has certainly changed, hasn't it ?

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