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Old 01-10-2017, 12:26 AM   #1
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Maximum CMU wall height

I'm just curious. I know there's a lot of engineering and incomplete information but, just generally speaking, can you build a house with a basement and two floors using 8x8x16 CMUs? I assume you'd have to fill all of the holes with concrete and lots of rebar but has anyone ever done such a thing and have it hold up?


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Old 01-10-2017, 07:04 AM   #2
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Re: Maximum CMU wall height

You can build a 2 two story home with a basement using 8x8x16 CMUs.

Depending on the soil type retained, it there would be reinforcement is some of the cores, but filling the cores without a rebar is a total waste of time and money and adds little strength or no lateral strength. The vertical strength is rarely a problem.

Concrete masonry units have great compressive strength as shown in the many high rise buildings that are partially reinforced even for 8x8x16 CMU on buildings up to 22 stories. The strength of the mortar is rarely a factor in the strength of load bearing masonry, since the block can be made in any strength for large projects (A typical block is more than 35% above the minimums just because of the manufacturing process because the ASTM strength standards/requirements happen to be too low. - I actually costs more to make a low strength block.



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