On 11/01/2012 23:07, dennis@home wrote:


"Cash" wrote in message
...
dennis@home wrote:
"Cash" wrote in message
...
dennis@home wrote:
On Wed, 11 Jan 2012 10:34:52 -0800 (PST), GMM wrote:

I thought of putting a circular saw on its side and running it
along but that
doesn't look very feasible.
Any suggestions chaps?

Well I would cut several strips of ply the depth of the joist and
screw + glue them on either side so the tops are at the finished
height. Then I would get a hand saw and lie it across the ply and
saw the top
off. Stager the joints in the ply and use it as the reinforcement.

Dennis,

It's rare for me to openly contradict another poster here, but with
all due respects, I think you really are talking through your hat!

In this case, they reinforcing material should be bolted to the
joist and should, at the very least be of equal thickness to the
original (and *NOT* "several strips of ply") doh!

Well I didn't say how thick the ply is!

Well that really speaks volumes on how little you know about the
subject - or of correctly responding to a post. Read my first post
here in response to the OP, and you will see what my initial question
was (repeated here) - rather vital information for structural repairs
wouldn't you agree?

-----------------------------

GMM,

How long, wide a[nd] [1] deep is the joist itself - (is the measurment
you gave -
the corridor or joist length)?

[1] Error in my OP corrected here
----------------------------

You really shouldn't argue unless you know how thick the ply is, how
long the ply is and what load is on the ply.

Please show me where you specified those dimensions in your response
to the OP's question. Oh, you didn't and as both the OP and myself
have yet to develop ESP, how are we to read your mind?

I can assure you that three pieces of 18 mm ply on either side would
replace 20 mm of a joist.

Now how long and wide should those three pieces of "18mm ply" be, what
glue (and preparation of the joist and ply) would you use [2] - and
what type, length, diameter and metal of screw would you advise to fix
that ply

And just how do you expect a few " bits of ply, screws and glue" to
take the load of a trimmed joist of unspecified size and also prevent
further movement?

[1] Epoxy, PVA, casein, animal - or perhaps the more modern No-Nails
type or even silicone mastic.

And as an old carpenter, I can assure you that unless you used stress
graded plywood, industrial glues, correct mechanical fixings and
design calculations - I would suggest that you are wrong.

And as for advising the reducing any load bearing piece of timber
without being told the size of it, its unsupported span and live and
dead load carrying well...

Well if you are that worried then its a lot better than taking 20 mm
off and it will resist further warping.

If you believe that, then you have little knowledge on the actual
mechanics of timber usage in construction work.

You really don't have a clue.

Nobody ever has a clue about what you are talking about you retard.


--
Dave - The Medway Handyman www.medwayhandyman.co.uk