Granite Slab, What Should I Put Under It

[Mike516]

I found a rather large piece of broken granite with three decent edges and I'm having the jagged end cut off. I'm having it cut to the width of my HF workbench so it's gonna be around 20" X 25" with 3 raw sides and some cement, which shouldn't be too much of a bother since the only side I'll need to contend with is the one that's being cut today and she said it would be straight.

I been using a sink cut out for the last few years with a poundo board under it and I like the way this works.

Is there anything similar to the poundo board I could use to put under the larger piece of granite? Maybe something that I could cut to size myself. It should be around 19 X 24 with a half inch less on every side, so pretty specific.

[CrazedLemming]

Maybe a trailer mud flap? Something like this? http://www.ebay.com/itm/AEROPRO-AE2430-24-x-30-Eco-Flex-Rubber-Mudflap-Black/281535222734

[Mike516]

That's not a bad idea, thanks!!!

[stu925]

I use rubber drawer liner material from walmart under my slab. Dirt cheap and works great, keeps the slab from moving and deadens sound a little bit. The mud flap would probably work great too alot more material to absorb sound & vibration.

[ChriJ]

You could also try a rubber mat they use in horse trailers and cut it to the size you need. usually come in 4'x6'x1/2".

[TinkerTailor]

Fill all the space between the granite and the ground with concrete. That'll make it solid...

[zuludog]

As a temporary measure, a damp cloth underneath will prevent the slab from sliding around, till you find something better. Something like an old towel or two layers of T shirt material

[Mike516]

All good suggestions. I think I might go with rubber padding like they use for roll-away drawers and cut to size. The thing is 2 1/2 inches thick and 20 X 25, so I don't think it's going to move around very much. I could barely get it in my car it's so heavy. I was hoping after they cut the jagged part of it would be a little lighter. I'm a little concerned about my HF workbench holding up LOL.

I have another small issue. Like I said, they cut the jagged end off for me and cut off the side that had cement on it for free so I'm not complaining at all. Matter of fact I don't know them and they didn't have to do this so I want to make the owner something for doing it for free. And they're nice super straight edges, I couldn't be happier.

But the edges are pretty sharp. I was wondering if there was anything I could use to file them down just so they're not so sharp? It doesn't have to be a lot, just like 1/32 of an inch. Just to get the edge off it. And it only really needs to be the edge facing me. I only work from one side of it and no one else should be near it so not worried about the other edges. I just don't want to put holes in all my t-shirts leaning against it. I'll have to start telling people I have moth problems Maybe there's a sand paper I can use. I have the standard compliment of tools; drills, roto sip, sawzall, skill saws, etc so nothing like they show in how to video's and don't really want to buy one to edge like 2 feet once and never use it again.

[oltoot]

Depending on availability, the trailer mat or the mats used for floors in horse stalls, rubber belting on conveyor belts for sand, gravel in concrete or highway aggregate plants. If you bring a big chunk of any of those home you will soon find other uses for the excess. As for smoothing up, go to a grave monument or countertop shop to see how they do it

Edited December 11, 2015 by oltoot

[Mike516]

This is what I was looking at to put under it: http://www.amazon.com/Shop-Fox-W1322-Anti-Vibration-24-Inch/dp/B000OQTV2I/ref=cm_cr_pr_product_top?ie=UTF8

Unfortunately, they all use machines or power tools for rounding the edges.