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RE: Granite Step Foundation

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What’s the step for?  Is it fully supported?  And the pad will just add weight to the bearing anyway.

 

If the gravel is compacted well it will spread the load.

 

Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE
Victoria, BC
Canada

 

 

From: Chris Miller [mailto:wcmiller(--nospam--at)me.com]
Sent: Tuesday, June 28, 2011 10:30 AM
To: seaint(--nospam--at)seaint.org
Subject: Granite Step Foundation

 

I am having a paver patio installed by a contractor and he will be using a 8" compacted gravel foundation to support the pavers. Additionally, a single granite step (48"x18"x7") will be installed. The contractor says he needs to pour a 6" concrete foundation with the same footprint as the step in order to prevent the step from settling over time due to the weight of the step. However, I think the step should be placed directly on the 8" compacted gravel foundation. Do any of you think the concrete pad is necessary?

Thanks,

Chris Miller, P.E.