Trimming reinforced concrete lintol

Dpends how fast you want to go through it :-)

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Reply to
Adam Aglionby
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The message from Bruce contains these words:

(I must be more observant) x 100 to save bandwidth. ;-)

I hadn't noticed that there are 2 small wires showing on the end faces. The separation left nibs and I had already knocked the nibs off the first lintel without noticing.

Reply to
Roger

The message from "George" contains these words:

Two foot thick rubble filled stone wall. I am using 3 lintels but one at least doesn't need trimming.

Reply to
Roger

Not at all. You sparked a useful discussion!

OK, it is definitely pre-stressed. Cutting it is perfectly safe. Just take the usual precautions to protect your eyes, fingers etc...

Reply to
Bruce

I use a cheap Aldi diamond disc to cut concrete femce posts & gravel boards frequently. They seem to take the rebar in their stride.

Reply to
The Medway Handyman

Thanks for that - having just fitted one I wondered how they were made.

I'm trying to imagine the situation the OP is in where he can't just extend the opening for it rather than cut it down.

Reply to
Dave Plowman (News)

I'm impressed with how personal you've managed to make this in only two posts. "nonsense, scaremongering etc"

Yes absolutely I agree with you - *If* the OP was talking about a pre-stressed lintel. He isn't and he didn't. He talked about a reinforced lintel. Look at the subject line for a clue (that one's free BTW).

I didn't have to go to any specific site to get a link/image, it was just the first one that turned up in google to save me drawing a picture. FFS pick any image/site you like of a *reinforced* lintel, not a pre-stressed one.

Now. Apart from your claims as to "nonsense", apart from your claims as to "scaremongering", *if* the OP has a reinforced lintel as he originally claimed (and the post to which I replied) your advice is not just s**te but dangerous, seriously dangerous. It is wrong, bollocks etc. Call it what you like. Would you like me to find you a US/German/Italian etc link or would the first one in google do?

Now *if* the OP has a pre-stressed lintel, your opinion would be appropriate. What really really worries me is that your advice was based on your *presumption* that it was pre-stressed as opposed to reinforced regardless of what was specifically stated by the OP. On the basis of your *presumption* you gave advice which carried the potential for catastrophic failure.

Carry on walking around with your presumptions pal, and throwing childish insults to those that disagree. It is probably how buildings collapse and kill people.

I note now, that the OP has spotted some wires sticking out of the end of the lintel. *Now* and *only* now is your advice appropriate. Until then it was just a load of bollocks. TF I pay engineers with liability insurance, because I really do worry that one day I'll meet one as good as you.

Now if you had asked the OP "are you sure it is reinforced and not pre-stressed because one you can cut, the other you can't" and then went on to describe how he might check which one he has, rather than just spew your dangerous s**te, I might be sitting here applauding you, rather than sitting here despairing.

The facts remain

- no, you shouldn't cut a reinforced concrete lintel. - yes, you can cut to some extent a pre-stressed one.

The OP asked about a reinforced lintel and you decided he meant something else. Someone

Reply to
somebody

The message from "Dave Plowman (News)" contains these words:

I could have, but not easily, and the lintels are overlong for the opening on account of the next size down being too short.

On another point I am sorry I seem to have started a flame war due to inaccurate subject line. It was just an off-the-shelf concrete lintel from the local builders merchant. I had no idea how it was made but may have been influenced in my choice of words by the alternative to buying in - casting in situ.

Reply to
Roger

I don't think you can be held responsible for others' inability to have a mature discussion.

Reply to
Andrew Gabriel

I think you'd be hard pressed to make one with the same strength to size ratio at home. Of course that may not matter since it's probably way too strong for your application anyway.

I'm pretty certain what you've got is a pre-stressed one - that's all my local BM stocks.

Don't worry about 'flames'. Lots of useful information can come from them.

Reply to
Dave Plowman (News)

Someone who isn't a specialist bought what he considered to be a "reinforced" lintel. To a non-specialist, it *is* reinforced. It has visible steel "reinforcement".

A lintel available ex-stock from a builders' merchant can only be pre-stressed. It is simply not possible to buy traditional reinforced lintels ex-stock in a range of sizes (also mentioned by the OP) from a builders merchant.

You clearly don't have even that most basic of knowledge about lintels, yet you decided to indulge in gratuitous scaremongering. Posting such complete nonsense doesn't help or inform anyone.

Reply to
Bruce

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