Finishing edge on cement pad

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Old 04-12-16, 12:39 PM
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Finishing edge on cement pad

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Size:  49.9 KB My pad is eroding underneath and I am preparing to finish it with wood. I need to shore it up where it has some gaps. I have read that foam is being used that way since it expands. Is that the best option or should I shove more cement underneath before covering the edge? Ideas?
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Old 04-12-16, 03:21 PM
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What do you mean 'finish it wood'
I'd shove gravel under the slab and build up the soil next to those areas.
 
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Old 04-12-16, 03:53 PM
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Mark - I think the OP wants to trim the pad out with a wood frame. I once had a sidewalk that somebody had trimmed the edges with PT 2X4s
 
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Old 04-13-16, 06:36 AM
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wood edge

yes, I am thinking of attaching 2x6 or larger to stabilize the edge and finish it.
I can push support such as gravel behind it.
 
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Old 04-13-16, 06:50 AM
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Any gravel you add around the edge, even stuffed under the slab, isn't going to provide much support unless well compacted. Compacting would drive it under the edge. But, adding what you can will help to reduce further erosion.

I agree with Mark in that I would build up the soil to level, even with the pressure treated wood trim, to eliminate the ankle breaker step.

Bud
 
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Old 04-13-16, 07:24 AM
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No 2 X pressure treated wood is below grade rated.
4 X 4's, 4 X 6's, 6 X 6's are.
 
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Old 04-13-16, 07:47 AM
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Actually there are 2xs that are rated for ground contact BUT you won't find them at a big box and they will cost more than regular PT 2xs.

Personally, I'd shore up under the concrete, then build up some along the edge with dirt and forget the wood.
 
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Old 04-13-16, 04:25 PM
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How would you shore it up?
 
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Old 04-13-16, 05:00 PM
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Joe - They may not have it in stock but most lumber yards will order UC4A/B lumber in 2X sizes.
 
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Old 04-13-16, 05:07 PM
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Looks like someone poured the pad on top of the grade rather than digging the forms into the grade.

I would not use 2x6, it would only erode the cement further. 2x4 rated for ground contact, (check label on the end, as it will confirm the grade you buy) and spikes or rebar placed vertically to keep it tight to the cement. Then bring your grade up higher against the board.

Or forget the board which serves no purpose, and just bring in dirt to correct the grade problem that was created when the pad was poured on top of the ground.
 
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