Categories

4x4 post holes to hang a sun blind for a patio

Question Icon
Posted by: from Oshawa
8/11/2013 at 11:16:06 AM

Would like to hang a sun blind on the west side of my patio. The problem is, there is nothing to hang it from. Want to install two 4x4 post and attach the blind to a 2x4 between the two posts. The blind is 8' by 8'. The posts will be required to support nothing else.

My question is - is digging down 2.5 feet deep enough or should I go 3'? Can I get away with packing the holes with gravel instead of concrete?

REPLIES (5)
User Icon
Torrance from RTS Contracting Inc. in Calgary
Date/Time8/11/2013 at 1:56:09 PM

I would go three feet as wind could play a factor catching the blind. Also using washed gravel is fine and especially in wetter conditions.

User Icon
Date/Time8/11/2013 at 3:01:27 PM

The deeper the better. As to gravelor concrete, I would just use gravel and tamp it well. Or, there is a new product which is a foam type product meant for posts. I've used it and find it quite good.

Ask at Home Depot or your local home improvement store.

User Icon
Date/Time8/11/2013 at 3:12:13 PM

4x4's sound like some pretty heavy duty wood to install a blind on. Consider perhaps metal or fibreglass posts that are much smaller in diameter and require a smaller diameter hole.(not as much work to dig).

Also, the reason to go down deep (4 feet), is to avoid the effects of frost heave from our long and cold winters.

User Icon
Constantine from Constantine in Toronto
Date/Time8/11/2013 at 5:46:43 PM

4 feet deep and concrete is the best way .

User Icon
Date/Time8/11/2013 at 8:50:09 PM

Hi,

I have built many decks, pergola's etc.

The blind you speak of will act like a sail. And on a windy day the strain it will put on the posts will be signifigant. I would dig down 3'8" and pour concrete around the posts. I have read some other replies suggesting smaller posts. If you install steel posts that are 2"x2" you can go smaller. But I would not suggest anything alse.

Now, I have not used the product but the folks at the commercial counter at my building material supplier say the foam product is good so long as you go down a minimum of the 3'10" with your holes.

But I do live by the old saying "if your going to do it, do it right".

Good luck with your project, and enjoy the shade.

James Fram

Search the TrustedPros directory and discover the best contractors in your area.

Find your home service pro
Great renovations start with a great contractor.

Since 2004, TrustedPros has been helping homeowners find the right contractor for their home improvements and repairs.

Post Your Project

Within hours you'll be comparing offers from top-rated professionals. It's free to post and you're under no obligation to hire.

 
Trustedpros Inc. does not warrant the accuracy, completeness, safety, legality or usefulness of any Content, or Whether Content is Current and up-to-date, and TrustedPros Inc. Shall have no liability whatsoever with respect to your use or reliance upon any content or for content being removed or otherwise ceasing to be available. Please refer to the terms and conditions of use of this websites for more details.
Categories

It appears you may be located in the US

TrustedPros is designed to deliver results targeted to your location.

Get Free Estimates

Post your project and compare offers from top-rated pros.


x