How To Cut Concrete Wall For Door

1. Howdy,

   My employer wants to put a new doorway in. The walls are made from concrete blocks, but they're heavier than Thermalite etc. It's a unmarried storey building with a apartment roof, for what that'south worth.

   Anyway, I recall bending grinders or similar are out. This was previously washed (well-nigh 10 years ago) past a guy who is no longer trading. Every bit far every bit I recall he used what looked like an oversized hand saw, but that was clearly good to cut the blocks. The usual builder we utilise says that he'due south only ever come across concrete saws for Thermalite/cakewalk, and what we want to practise isn't possible without using angle grinders and making loads of dust.

   And so, are there any no/depression dust methods to cut a doorway in the wall?

   Thanks a lot.

   Steve.

2. For 1 brick walls (230mm thick) I have used an angle grinder outside and drilled inside. Drill lots of holes and then chop along the drill holes with a lump hammer and chisel to remove the bits of block. Nevertheless go some grit but not as bad as an bending grinder.

3. Hullo,

   Thanks for the information. I forgot to add together that this is a doorway in an internal wall, so dust on either side is a no-go. The areas are used for manufacture/storage of electronic products, and sadly information technology'due south not viable to clear them, or to shield them - The new door would exist very handy, but unfortunately (for me) isn't considered essential.

   Thanks over again.

   Steve.

4. Well you lot will always get some grit no matter what you practice. Can you not sheet up the area of work to stop dust from getting onto the machinary? Even if you lot drill hundreds of holes you volition still get dust as knock ir down and articulate uo etc.

   The other way is to wet cut it only then you lot accept to a petrol cutter whcih ways problems with fumes etc.

   Tell you're boss to do whats needed to become the doorway done or deal with no doorway.

   Sometimes yous tin can't perform miracles.

5. low dust option is a brick cutting bract for a recip saw

6. 

   ­ New Member

7. Attempt this

   You demand to get yourself a proper noun.

8. 

   ­ New Fellow member

   I used to take ane, very like to yours.......

   :^O

9. I've been involved with work in banks and BT exchanges where dust was non an option, what yous need information technology a diamond cutting specialist, they tin either do it with saws or stitch drill the hole, they can do it with total h2o control so very little mess. Still best to brand up a unproblematic 2x2 frame around the work expanse and encompass with poly. This is who we used to use.

   Jason

10. There is e'er another fashion.

    Removing all the blocks taking outside, cutting, and re-fitting the halves(I guess it'll all be tidied up afterwards with plaster etc)!!!!

    Knock the get-go one out in the centre, then utilize a multipurpose handsaw to cut the mortar and remove the blocks.

    Long-winded, time-consuming, but where in that location's a way......

    Mr. Handyandy - really

11. that is stupid handy. Similar i said use a recip saw and brick cuting blade

12. Thanks for all the replies guys - Very much appreciated. It's good to know there are helpful people, and options.

    I shall investigate the various routes. I wonder what the previous guy used. It was definitely a handsaw - I watched him do it!

    Cheers.

    Steve.

13. Sorry, I should accept as well said that it's non essential that in that location's no dust, just that it's minimal. Hammer drilling holes would be ok, so as a terminal resort, chain drilling and a Henry would probably exist ok (just hard work!) Information technology but can't achieve the level of a sandstorm in the Gobi Desert...

    Cheers.

    Steve.

16. He's probably washed the job by now you spamming *

    [Edited past: admin]

17. I have got one of the to a higher place kango type saws. Look a bit like they are from a mad max movie, heavy and you lot need muscles in your ** to cut the doorways that we did in dense conc blocks between offices to create suites.

    Dust was much less than a rotating saw considering the 'dust' particles were much bigger and therefore didn't become 'airborne'

    It cost quite a few hundred quid if I recollect right tho.

18. I used the Kango Supersaw a few years agone to cut out a doorway in brickwork. Easy to use on the downcut'south but a right b*er to use for the cross cut at the top. Plus, the owner of the property forgot to tell the states there was wiring for two redundant wall lights buried in the wall (which was still alive);-)

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