DUROCK
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Mr Whitfield
Feeling the Heat
Properly supported it will take many times that weight. Unsupported it won't take anything near that.
If you are placing your Durock directly on a sub-floor of some sort you will have no problem with weight distribution. If you are building a hearth you will need stringers on 12" centers then a number of layers of Durock. Check local codes.
If you are placing your Durock directly on a sub-floor of some sort you will have no problem with weight distribution. If you are building a hearth you will need stringers on 12" centers then a number of layers of Durock. Check local codes.
velvetfoot
Minister of Fire
I'm no expert, but is this an issue of concentrated loads? Like, would a pedestal spread the weight over a bigger area than feet?
thephotohound
New Member
I have 16" OC, and all I did was open the 3/4" subfloor, install 2x4 blocking every 10-12", recover with new 3/4" plywood, 24 ga. sheet metal, 1/2" durock, tile.
jqgs214
Minister of Fire
Well can you stand on it?? I'm sure you weigh more then 56lbs and your footprint is probably around 1 sqft.
jqgs214
Minister of Fire
Highbeam
Minister of Fire
I used durock to span the gaps of a platform frame made of steel studs. I found a single layer of durock pretty flexy while walking around on it. Probably about as flexy as similar thickness plywood before screwing it down. Once I screwed down the first layer of durock and then added a second layer with thinset between them, the laminate durock "deck" was much more stiff and flexiness was almost undetectable and partially cuased by the steel studs. Then after the final layer of thinset and tile setting, the platform has no apparent flex at all. The 500 lb stove on legs did not poke through thank goodness.
To answer your question. Yes it can. Unless you install the durock improperly. Durock looks to be simply a thin layer of concrete with a mesh reinforcement. I've mixed concrete that took well over 10,000 psi of compression. The rock sheared where the cylinder finally failed.
To answer your question. Yes it can. Unless you install the durock improperly. Durock looks to be simply a thin layer of concrete with a mesh reinforcement. I've mixed concrete that took well over 10,000 psi of compression. The rock sheared where the cylinder finally failed.
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Highbeam
Minister of Fire
Please excuse the hijacking....
I am a civil engineer and one of our classes on concrete included a competition to make the cylinder with the highest compressive strength using whatever admixtures and curing treatments we could think of. The university has one of those 3 or 4 story crushers which we used to win the competition and the professor took our little team to dinner at one of the local breweries. I want to say we hit just over 14000 psi and yes there was a steel mesh screen to help protect us from the shrapnel. It didn't explode but just sort of popped into a few large chunks. Fond memories.
I am a civil engineer and one of our classes on concrete included a competition to make the cylinder with the highest compressive strength using whatever admixtures and curing treatments we could think of. The university has one of those 3 or 4 story crushers which we used to win the competition and the professor took our little team to dinner at one of the local breweries. I want to say we hit just over 14000 psi and yes there was a steel mesh screen to help protect us from the shrapnel. It didn't explode but just sort of popped into a few large chunks. Fond memories.
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