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Overboarding wall & plug sockets

Discussion in 'Electrics UK' started by Whitling2k, 3 Mar 2014.

  1. Whitling2k

    Whitling2k

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    Now then!

    We are getting a plasterer to overboard two walls. It's going to be my study so will need a few plug sockets adding in.

    There is already a ring main present - I am just adding 6x extra double sockets sockets into it - protected up to present regs requirements (according to my sparkie when he moved and serviced my CUs).

    If I want flush sockets (well - the usual 5mm or so protrusion of the faceplates), should I cut the socket boxes into the existing wall before the new boards go on - or wait until the new board is in place and skimmed - and then attack in the way I already know - cutting it out and back-filling?

    All the previous sockets were boxed on the outside of the wall - which in a study - I don't mind doing if it's going to be significantly easier!

    Why 4x doubles? I would rather have 4x double sockets in the ring main than two of those 4 way extenders plugged into 1x double socket! 2x doubles are going into a mini-half-height stud wall along with network points and HDMI port; and 2x doubles will be hidden by the desk.

    I have posted a similar question in the plastering forum too - but about radiator plumbing placements.

    Cheers

    Whitling2k!
     
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  3. OwainDIYer

    OwainDIYer

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    cut the boxes in and run cables before boarding, leave the box edges protruding from the existing wall finish
     
  4. PrenticeBoyofDerry

    PrenticeBoyofDerry

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    For flush flat plates you will require at least 35mm deep backboxes, cables must be routed within the permitted safe zones or be mechanically protected.

    The sockets on this circuit must also be 30mA RCD protected.
    To conform to Part P of building regs, you must take all reasonable provisions to prevent injury or fire. So you must prove what you are doing is designed and installed correctly!
    So a little research into circuit design, installation and inspection, testing and certification would be advised.
     
  5. sparkwright

    sparkwright

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    In my opinion, it may be overkill peppering the wall with all those extra sockets. The advantage of using 4 way extension leads is that some can offer surge/spike protection for all your equipment.

    The last surge socket I fitted needed very deep boxes and cost a bomb.

    Also, have to ask, why overboard walls? Apart from making the room smaller, the skirting boards etc will have to be altered.

    You haven't got a lazy plasterer who can't/won't render, have you?
     
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  6. winston1

    winston1

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    Extra sockets is always preferable to 4 way extensions.
    Surge/spike protection is not generally required in the UK.
     
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  8. Whitling2k

    Whitling2k

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    Thanks for the tips. Safe zones noted. The rest of the design I am leaving up to my electrician. I will do the donkey work - drilling, routing and preparing.

    Overboarding is at my spec - I had initially planned to attach battens and joint/tape myself - I thought the natural progression of that was to overboard; so my plasterer priced the job based on my request.

    I will ask about rendering - as long as I get a decent finish I'm happy.

    If it makes a difference - the old wall is dot and dabbed plasterboard onto breeze block - so where the old plasterboard has been taken away - there would be best part of 1.5-2" to render - would that be too much?

    Whitling2k
     
  9. OwainDIYer

    OwainDIYer

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    one-coat would do it in, erm, one coat.

    two layers probably would give a better result though.
     
  10. Whitling2k

    Whitling2k

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    I'll ask next time I see him then. tbh, i've got lots of other things to do first - part time (mostly) DIY refurb of 1/2 my ground floor so I'm looking at least months before I get the plaster back round.

    So just to double check (and probably annoy the forum members!):

    Would you be able to render a wall thats 1/2 plasterboard and 1/2 breeze block, a bit of a mess with new and old boards, holes, cracks (old board not taped)... and still get an as-new finish with a render followed by plaster skim?
     
  11. Whitling2k

    Whitling2k

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    Thanks Sparkwright - called my plasterer today - we were overboarding as per my request!

    So discussed other options and we're no longer overboarding!

    Saved a bit of time and materials there!

    Thanks

    Mark
     
  12. DIYnot Local

    DIYnot Local

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