Retaining Wall Help

Discussion in 'Hardscaping' started by Eischeid, May 25, 2011.

  1. Eischeid

    Eischeid LawnSite Member
    Posts: 100

    I have looked here for advice on pricing tips and new technologies for the last year and I get some good advice but I also get a lot of bs and people being a smarta**. I'm just trying to do things the right way and for the right price because I don't want to be called a "lowballer" or be told I need experience from a bigger company. Any real help would be nice on how much to charge. I have access to all the necessary equipment to do a residential retaining wall.

    Thanks...
    Posted via Mobile Device
     
  2. Dr.NewEarth

    Dr.NewEarth LawnSite Bronze Member
    Posts: 1,405

  3. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Posts: 6,403

    best thing to do is a search on this forum.

    oddles of infourmation. Especially from me.



    .
     
  4. Eischeid

    Eischeid LawnSite Member
    Posts: 100

    DVS. I've read things you've been saying. It sounds like you have a lot of experience. Can you explain to me when geo grid is necessary? I was going to use it on every wall four courses or more.
    Posted via Mobile Device
     
  5. andyslawncare

    andyslawncare LawnSite Senior Member
    Posts: 812

    Geo grid is specified by an engineer when a wall is over 4-5' tall. The geo grid helps hold the wall in place by using the weight and friction of the soil behind the wall. Very simple concept. Follow the instructions and advice that the wall block manufacture supplies you as far as safe height before geo gridding it, etc.
     
  6. shovelracer

    shovelracer LawnSite Silver Member
    Posts: 2,009

    Those numbers are under certain conditions. You can build a 10' wall in one situation with no grid and need grid with a 2.5' wall in another situation. There are plenty of sub 4' walls falling over in this area despite following recommended installation procedures. I grid 2.5' if it has a surcharge and everything over 3'. Before someone says something, yes I have seen a 10' wall engineer signed with no grid. The key was that it was directly in front of a rock face with 100% backfill of 3/4 clean. On the other hand my neighbor built an 8' wall with lipped 6" block with no grid and a slope and driveway surcharge, 1' of drainage, no fabric, and pure clay backfill. I would have bet it gone in 2 years, but it still stands 4 years later. There was a pretty high profile wall that fell over around here a few years ago. It was under 3.5'. The point is that each one is different. Always best to contact an engineer.
     
  7. Eischeid

    Eischeid LawnSite Member
    Posts: 100

    How much do you charge per sq ft?
    Posted via Mobile Device
     
  8. PatriotLandscape

    PatriotLandscape LawnSite Bronze Member
    from MA
    Posts: 1,209

    Grottos is specified by the manufacturer and is not always determined by wall height depending on size and shape of the block. You can need grid on a two foot wall in certain situations. It is not needed on all walls so don't waste your money.
    Posted via Mobile Device
     
  9. Eischeid

    Eischeid LawnSite Member
    Posts: 100

    What percent do you guys try making for profit over materials? I'm going to do this stuff myself so I'm not going to have much overhead.
    Posted via Mobile Device
     
  10. PatriotLandscape

    PatriotLandscape LawnSite Bronze Member
    from MA
    Posts: 1,209

    50% gross 15% net
    Posted via Mobile Device
     

Share This Page