joist

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  1. A

    Truss Joist

    Any body worked with these? Havnt worked with them before. New Build with Truss joist, with steel/galve webing/support along its length. No drilling neccassary! Any tips with cable support and routing? Will need alot of cable ties i should imagine.
  2. O

    running mains cable underfloor along a concrete sub floor

    I have just had an extension built to extend the kitchen and provide another room.The old kitchen area has honeycomb walls supporting a floor joists on a concrete base. The base is clean and without debris. The builder has suggested that when the electrician comes to to wire it up he could pass...
  3. D

    Distance Of Fire Rated Light From Timber Joist

    Hello My builder has recently made holes for down light in my living room. I noticed that 2 or 3 holes hit the joists and some are flush against the joists. I have purchased aurora fire rated down GU10 downlights and want to know what the minimum distance the devices should be from the...
    • dave1233
    • Thread
    • distance fire fire rated joist light rated timber
    • Replies: 13
    • Forum: Lighting Forum
  4. I

    prexisting hole in garage joist

    hi there i am rewiring and removing old electrical wiring to detached garage and need some claification on two existing holes going through 6x2 garage flat roof joists. Both holes do not comply with the building regulations re span (0.25-0.40). As they are already there would i be contravening...
  5. P

    floor boards

    Hi Guys, Just wondering what method you use for getting up floorboards without causing too much damage ? :smartass:
    • paul wild
    • Thread
    • across aus boards circular floor joist plumbers
    • Replies: 23
    • Forum: Australia
  6. Paul.M

    It's the Plasterers Fault This Time!

    Over the past 2 weeks I've had a plumber drilling into a 4mm rmf, Tuesday a home owner putting a picture nail into a 2.5mm rmf and this evening a plasterer putting a 4 inch fixing screw into a sw feed/sw live! Whoops :):):). He tried to cover it up but was found out when the elderly couple...
    • Paul.M
    • Thread
    • aus cable ceiling fault joist through time trying
    • Replies: 44
    • Forum: Australia
  7. J

    Drilling holes in new joist for cabling

    Can someone please help. I am running some cables in our new exstension. The joist are approx 4.2m long, am i right in thinking that i have to drill my holes between 0.25m and 1.68m on either side. Many Thanks
  8. J

    downlights and joist

    hi all i know there are maunfacuer distances but how many of u actully go as close to joinst as possible. i have never heard of a joist catching fire befor. any one put one touching a joist ?
    • james king
    • Thread
    • aus downlights joist lighting lights
    • Replies: 16
    • Forum: Australia
  9. S

    Requirements for drilling holes in joists

    Could anyone point me in the right direction for requirements to drilling joists? eg. distance out from end of etc... Have used a guidance sheet before but really dont have the time to trawl google searching for regs. Cheers
    • stuart569
    • Thread
    • aus between depth drill drilling holes joist joists requirements
    • Replies: 17
    • Forum: Australia
  10. C

    holes in joist

    hi guys looking through electricians guide to building regs (small green book) pg 31 and having trouble understanding : ' holes on centre line in a zone between 0.25 and 0.4 x span' in regards to running cables in joists could someone please explain in layman's terms thanks in advance
  11. D

    Pass electric cable through ceiling joist

    Hi I'm installing a plasterboard ceiling in a porch and I want to pass the cable through a joist to feed the bulb. This cable is twin & earth with external diameter of approx 7 mm and the joist in approx 35 mm thick. My question is what size hole should I drill through the joist so I can pass...
  12. R

    Drilling joists

    http://www.wycombe.gov.uk/uploads/documents/Environment/Planning/LocationofNotchesandHolesinJoistsA04.pdf Take a look at above PDF what do they mean by the depth of the joist, the diagram seems to indicate the thickness ??
    • Richard3009
    • Thread
    • aus depth drill drilling joist joists
    • Replies: 8
    • Forum: Australia
  13. S

    good joist drill?

    Can anyone recommend a good joist driller? Purchased many drills in my time & still I am unsure to what joist drills to supply my lads with. Tried the angle makita's & they were useless. any ideas???????:(
  14. B

    joist span confusion

    I must run fp cable under floor perpendicular to Joists. i must drill holes in Joists and thread cable through. safe zone is 0.25 to 0.4 of span length. the Joists run as a continuous piece of wood from front wall to rear wall but are supported halfway by a wall underneath. should i therefore...

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