Depth of unistruct for supporting enclosure


Old 05-22-19, 07:45 PM
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Depth of unistruct for supporting enclosure

I have a pool pump electrical enclosure that was previously mounted on two unistruct channels set into the ground. After many years the unistruct corroded through.

I would like to drive new 1-5/8 12 gauge unistruct channels but not sure how deep I should drive them into the ground.

The enclosure box is 12"X12"X4" and the bottom is 12" off the ground. Any rule of thumb how deep to drive them? I am thinking 18".
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Old 05-22-19, 09:34 PM
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The deeper the better.
Start with slightly longer than needed and if you can't drive them deep enough... cut them off.
Old 05-23-19, 06:23 AM
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Enough to make them secure. There is no code requirement here other than "secure". It will depend on your soil conditions

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