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fasten a 4x4 to pavement

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Forum topic by GR8HUNTER posted 11-05-2017 07:09 PM 441 views 0 times favorited 8 replies Add to Favorites Watch
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GR8HUNTER

2953 posts in 547 days


11-05-2017 07:09 PM

Topic tags/keywords: question 4x4 pavement

hello all ,,,I need to fasten a 4×4 PT 3 foot high to pavement this project is for a trash can enclosure to be built of the back of a shed 3 feet of shed around 6 feet wide with a gate on front looking for ideas how to fasten corner post 4×4 3 foot high PT to pavement THANKS FOR ALL REPLYS :<))

-- Tony Reinholds,Pa. REMEMBER TO ALWAYS HAVE FUN


8 replies so far

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lew

11841 posts in 3590 days


#1 posted 11-05-2017 07:16 PM

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JoeinGa

7721 posts in 1842 days


#2 posted 11-05-2017 07:24 PM

I dont think the bracket Lew shows would work on pavement. ( You DO mean “TAR” or “Blacktop” dont you? )

I think I’d find a way to make a hole in the pavement (even if it means using a long drill bit to drill around the edge) and then digging out the plug. The use a two-handled post hole digger to dig it the rest of the way. Sink the 4X4 and patch around it.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

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GR8HUNTER

2953 posts in 547 days


#3 posted 11-05-2017 07:35 PM

yes Joe Blacktop ,asphalt ,pavement didn’t really think I needed to sink the 4×4 since it is only for light fencing or don’t feel like that much work LMAO :<)) Maybe that thing lew posted would work if they have them for 4×4 and fasteners for blacktop ?

-- Tony Reinholds,Pa. REMEMBER TO ALWAYS HAVE FUN

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MrRon

4492 posts in 3078 days


#4 posted 11-05-2017 07:43 PM

Any base similar to the one recommended by Lew is not recommended when the top of the post is not supported as in fence post. If the pavement is asphalt or other “soft”material, you can get a steel post that has a spike on the end and attaches to the bottom of your 4×4. The post is then driven into the ground. These are used for attaching mailboxes to posts. https://www.lowes.com/pd/USP-Steel-Painted-Post-Base-Common-4-in-Actual-4-in/3365692

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jerryminer

800 posts in 1276 days


#5 posted 11-05-2017 08:30 PM

The bracket in the link posted by lew above will keep the bottom of the post in place, but will not keep the post plumb (upright). If you hang a gate on the post, the gate will sag, guaranteed.

Better option, IMHO is one like this: Post Base

-- Jerry, making sawdust professionally since 1976

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GR8HUNTER

2953 posts in 547 days


#6 posted 11-05-2017 08:34 PM

that looks more like what I was thinking of Jerry now is there a fastener for blacktop , pavement ?

-- Tony Reinholds,Pa. REMEMBER TO ALWAYS HAVE FUN

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jerryminer

800 posts in 1276 days


#7 posted 11-05-2017 08:46 PM

I like wedge anchors, like these

-- Jerry, making sawdust professionally since 1976

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WhyMe

909 posts in 1396 days


#8 posted 11-05-2017 10:22 PM

Wedge anchors will not work in asphalt. The only thing that will come close to holding up a post on asphalt is what MrRon linked. Asphalt has no holding strength if using mechanical fasteners to prevent top lateral movement.

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