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2 x 3' Walls vs. 1 x 6' Wall (Mortarless)

Discussion in 'Hardscaping' started by chooch, Nov 18, 2007.

  1. chooch

    chooch LawnSite Member
    from WA, BE
    Messages: 2


    Just looking for some advice. I couldn't find any info on this but maybe I'm just not looking in the right places. I'm not looking for a loop hole to avoid permits/engineering but I would just like to incorporate some landscaping. Ultimately, the wall(s) will have to bear the load of a single parking stall.

    I've read that a 6' x 36' wall needs to engineered but would two 3' x 36' walls, one set back 3-4', require engineering? I'm even considering three 2' x 36' walls. I was wanting to use Allan type mortarless blocks.

  2. mrusk

    mrusk LawnSite Gold Member
    Messages: 3,260

    To board of a question. A 2 ft wall could need engineering in the right circumstance.
  3. Mike33

    Mike33 LawnSite Bronze Member
    Messages: 1,649

    Many variances, comm. or resd.? Check your local codes. I have many ab walls out there 6' and higher and didnt have them eng. due to local codes, my experience, and mainly training. I have used a ton of ab product and have spent a lot of time at there workshops and became a cert. ab installer. Neverless working with them closely i havent had to go that route yet. Also im in the mountain area, hard shale and lime stone we dont have to worry a lot about bad soils due to we are on solid rock in most places. A 6' wall is a major under taking and in most areas should be eng. In my area only comm. sites over 4' needs to be and i do 99% resd.
  4. paponte

    paponte LawnSite Silver Member
    Messages: 2,366

    You would have to check with the village/town, each is different. We have gotten away on alot of walls by doing 2 smaller tiers. Most towns want to see a 2' stepback on the second wall, meaning for every foot up you must go back 2'.
  5. chooch

    chooch LawnSite Member
    from WA, BE
    Messages: 2

    It is a for a residential application. I had a quick chat with a local city inspector and he told me I can build up to 4' without a permit/engineering but he didn't specify application (amount of load it is bearing). I just don't want my car to end up in my back yard. I would prefer to build 2 tiers since I have the room for it. A 6' retaining wall isn't the most pleasant sight.

    Thanks for the replies.

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