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I need a biscuit cutter blade for stone. I’m installing stone slabs on a fireplace hearth that is built up with framing. I want to use metal biscuits with a screw hole between stones. I’ll lag the stone dry then screw into the framing with stainless, then fill the gaps with mortar. Not the best way but I don’t want to rebuild the framing to allow room for a proper mortar bed.
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Replies
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What about an angle grinder with a mas. blade? Hope it's soft stone. Best of luck.
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You can use a diamond grinding blade available at most tile stores. If you need more thickness, buy two and double them up.
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Modern epoxies are amazing. I would probably investigate epoxying your stone to the framing before going the biscuit route. Something is available that's strong enough that your framing will fail before the epoxy will.
*4" grinder is what I would use.Ed. Williams
*I'll go with what Ryan said. However, if you choose to use a metal, think about how it can and will react with the stone. And as with all biscuits, leave some room for slop.
*I'll go with what Ryan said. However, if you choose to use a metal, think about how it can and will react with the stone. And as with all biscuits, leave some room for slop.BTW: seems to me what you are mostly concerned about is deflection from plane. How will biscuits help prevent that?
*For Jim Nation, PE per Jeff.GranQuartz-800-458-6222ScottView Image
*I was wondering if this is fieldstone you are using. I don't see how you'll be able to use the biscuit method effectively with wide and varying mortar joints.It's common for commercial work to install stuff like this by epoxying threaded rods into the back of the stone and then bolting it to framing or sheathing, whatever. These modern epoxies are stronger than the stone itself, and all you have to do is drill a few small holes in the back of the rocks.How well do you figure the mortar joints will hold up with the flexing and expansion/contraction of the framing?-Rob
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I need a biscuit cutter blade for stone. I'm installing stone slabs on a fireplace hearth that is built up with framing. I want to use metal biscuits with a screw hole between stones. I'll lag the stone dry then screw into the framing with stainless, then fill the gaps with mortar. Not the best way but I don't want to rebuild the framing to allow room for a proper mortar bed.