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prod69 04-01-2010 02:00 PM

Posts Into Concrete
 
Hi,
I would like to install a short run of handrailing up some 2" thick bluestone steps, (4 steps) that are set in stone/concrete. For the posts connecting the handrail/ballasters I was thinking of attaching two 4x4 PT posts (one at top and bottom) to the bluestone using an anchor plate. I wanted to drill into the flagstone, down into the rock/concrete, put in epoxy, a sleeve, then a bolt to hold the plate down. My question, is this doable? Is that strong enough for a handrail? I can't really dig hole outside the steps for the posts, because there is a lot of uneven concrete and rock. Any thoughts?

Bob Mariani 04-01-2010 02:09 PM

depends on the post supports you use. But yes it is doable.

kwikfishron 04-01-2010 05:48 PM

You can’t “easily” dig to the outside but that’s were I’d like to see the post.

Nothing you do on top will be "Rock Solid".

A picture would be nice.

tpolk 04-01-2010 06:22 PM

build a hollow box post with a 1" piece of allthread rod. rod drilled into tread/ step area with hydraulic cement poured around it at the step. I like to drill the hole large enough to have a nut with washer poured into the hole threaded on the rod. then a box post with a rabbit/mortise at the top that a plate will sit on with a center hole for your allthread to go thru. washer and nut and torque will lock post in place. finish post with top cap of your choice


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