Categories

Footings for new 4 X 8 walkout deck

Question Icon
Posted by: from Grimsby
2/20/2017 at 9:02:05 PM

Had new cement patio poured last year and also removed deck that provided exit from kitchen to backyard. I want to rebuild with same size in mind (4X8ft) but wondering if using post anchor to new slab is sufficient or does code in Niagara region require footings. Simply being used as an entry/exit into house and about 4 ft high.

REPLIES (7)
User Icon
Jay in Brantford
Date/Time2/20/2017 at 9:30:32 PM

I would say post anchors would be sufficient or deck blocks but it could depend on how thick your slab of concrete was as well.

User Icon
Date/Time2/20/2017 at 10:39:39 PM

Hi there,

I would also use decking blocks.

User Icon
Date/Time2/21/2017 at 8:14:25 AM

Hi Jeff,

From what I am getting from your description is that your basically building this small deck above your new slab?. Post anchors should be fine for this deck. If you put rebar steel in your slab, this would have been better, but then your deck is small enough and your not supporting a lot of weight. There is a slight chance that your slab could crack near your post anchors. To help distribute weight a bit, put your posts on 2 x 6 flat on the slab. Put a membrane and caulk around the 2 x 6 for water.

Do you home work, get a few Detailed Estimates.

User Icon
Date/Time2/21/2017 at 4:18:36 PM

I would do it once and do it right. I would install footings to support.

User Icon
Jay from CPM Group Inc. in TORONTO
Date/Time2/21/2017 at 7:28:19 PM

To do a right job you need footing. This will ensure that any movement will not effect the slab or deck. The deck is small but you have load on one point all the time. What happens when it snows heavy in winter. This will cause cracks on your slab over time.

User Icon
Date/Time2/22/2017 at 11:30:00 AM

Jeff,

Put in two concrete 8" dia footings and make sure you go down 48" The frost went down that far here 2 years ago. Its the right way.

Good luck!

User Icon
Date/Time2/26/2017 at 10:04:56 AM

Good morning.

If your deck is attached to your house then you have to put in full footing to support the deck. The concrete slab is floating and will move and depending upon how it is constructed will crack and may not support the weight. It is also a code requirement.

Regards,

Kingsway Construction Inc.

Glenn Rosborough

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

Get Free Estimates

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


x