Hire the best Home Extension Experts

Acrow Props

Results 1 to 4 of 4
  1. #1
    Apprentice (new member)
    Join Date
    Apr 2008
    Location
    essendon
    Posts
    2

    Default Acrow Props

    My project is to hold up the existing 1960s renovation under my house. The outside walls and one internal wall gets taken out and strip footings get dug. Question is how many acro props do I use? 1 ever metre or what?

  2. #2
    1K Club Member journeyman Mick's Avatar
    Join Date
    May 2003
    Location
    Kuranda, paradise, North Qld
    Age
    60
    Posts
    1,782

    Default

    Be very Careful! Besides taking downward loads the walls also provide lateral bracing (ie prevent the house from falling over sideways). If you remove all the walls and replace them with acrow props it might still tip over and kill you and anyone else nearby.

    Generally you would prop and then remove a section of wall, place new footings, build new support structure and fix to house then repeat. Do you really need to do this yourself? You may be better off working and making money in order to pay someone with the required skills and knowledge to complete at least the structural parts of this process for you.

    Prop spacing would depend on the construction of the house, bearer spacings, room required for excavation etc etc etc.

    Mick
    "If you need a machine today and don't buy it,

    tomorrow you will have paid for it and not have it."

    - Henry Ford 1938

  3. #3
    Apprentice (new member)
    Join Date
    Apr 2008
    Location
    essendon
    Posts
    2

    Default thanks

    Should have given more detail !
    The front half of the house will be levelled and reblocked on concrete stumps. The back half, I will support 1 quarter and excavate the outside while interior walls remain. The engineer/project manager will supervise this. One of my tasks was to work out prices on the project and the support is one of those elements. So i wanted to work out how many props per square meter/lineal meter and then decide whether to hire or buy and resell later. Your thoughts?

  4. #4
    Champion Messmaker Dirty Doogie's Avatar
    Join Date
    Aug 2007
    Location
    Noosa Heads
    Posts
    512

    Default

    Always a tricky call without seeing the job. Generally bearers are propped up by a heavy timber with an acrow prop each end.

    The timber "pin" is often coach screwed through the head plate of the acrow prop, and the foot of the acrow prop is fixed to a firmly levelled piece of timber plate on the ground. so if the job is holding up bearers where a post once existed - then you'll need 2 acrow props in the position of every existing stump.

    There are 3 sizes of acrow prop (probably more) based on height - to buy them new , the price doubles at each size up (It might be different now - I bought mine 10 years ago). But even then size 2 acrows were $150 - today $150 will hire you 5 acrows for a month.

    they are also buggars of things to have lying around the place.

Similar Threads

  1. Hiring Support Props
    By blak in forum Structural Renovation
    Replies: 2
    Last Post: 31st Jan 2008, 05:35 PM
  2. Acrow prop, how to use? and advice please
    By tameriska in forum Structural Renovation
    Replies: 3
    Last Post: 15th Oct 2007, 06:06 PM
  3. props for overhead cabinets
    By celeste in forum Kitchens
    Replies: 13
    Last Post: 31st Mar 2007, 09:32 AM
  4. Acro props
    By neddy in forum General Odds & Sods
    Replies: 3
    Last Post: 6th Sep 2004, 07:59 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •