Heavy Duty Steel Gate Installation

Old 08-31-06, 05:37 AM
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Smile Heavy Duty Steel Gate Installation

I am welding a large two section driveway gate. Each gate is about 9-6" wide and 6' high for a 20' drivway. When I am finished with the gates, each gate will weigh 250-275 pounds.

In preparation for the gates, I have cemented a 6x6 square galvanised post 4' in concrete with a sub footing with rebar that is also 4' deep that runs the entire 20' length from post to post. The wall thickness of each 6x6 post is slightly less than 1/4".

I have purchased very heavy duty barrel hinges that will be welded to each gate frame. There will be 2 hinges per gate piece. I have also welded a 6x12" plate to the other end each hinge so that I can bolt the gates to the 6x6 metal posts.

Do you think the posts will sag when I go to bolt each gate onto each post. I was trying to avoid using any wheels on the end of the gates. I was hoping the post size in combination with the depth and width of concrete would keep the post from sagging even though each gate will weigh 250-275 pounds.

I appreciate any advise.
Old 08-31-06, 05:46 PM
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I don't THINK they can sag, given the depth of your footing and the size of the posts. Sounds almost like a bit of overkill to me, but if it keeps the gates from sagging, it's worth every extra dollar you are pouring at it!!
Old 09-26-06, 01:24 PM
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the question is whether the gate itself will sag -
Old 10-06-06, 02:15 PM
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I've hung 500 pound gates, with less support than you have. You're good to go!

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