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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Carpentry Questions >> Cross Bridging/Bracing https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1148810268 Message started by Bayden_Rank on May 28^th, 2006, 10:57am

Title: Cross Bridging/Bracing
Post by Bayden_Rank on May 28^th, 2006, 10:57am

Hi

To get a constant fall on the waste pipe run I need to get through the cross bracing which is as shown.

The extension has been built about 5 years (probably irrelevant) but can I remove part of the cross bracing and if so do I need to replace it with some form of brace or noggin/dwang?

Thanks

Title: Re: Cross Bridging/Bracing
Post by WOLF on May 28^th, 2006, 4:07pm

it does not really matter, where these bracings are, the BCO like to see them in, and they do actually do replacement thin sheet steel/stainless steel ones, so you can quite happily remove the pair you need, and if you can not replace them else where along the particular pair of joists, you can use the thin metal ones ... all they are in there for are to stop the joists twisting/moving around!!
so feel free!! move to suit!!

Title: Re: Cross Bridging/Bracing
Post by woodsmith on May 28^th, 2006, 5:58pm

If you can't get herringbone strutts in because they don't leave enough space for the pipe you can always fit a solid piece of wood and drill a hole in that for the pipe.

Title: Re: Cross Bridging/Bracing
Post by JerryD on May 28^th, 2006, 6:34pm

Easier still is to remove the cross bracing as required and replace it with a solid noggin just above the plasterboard and another just below the floor deck.

This makes it easier to install the waste pipe as you fit the lower noggin first then install the waste pipe then fit the top noggin above it.

You can use anything suitable but 3 x 2 cls is ideal.

Always screw the noggins into place, nailing may disturb the ceiling below. Put some celafelt or similar where the waste pipe may rub any timbers as this may creak as it expands/contracts.

Title: Re: Cross Bridging/Bracing
Post by WOLF on May 28^th, 2006, 7:00pm

the local BCO's around here won't allow the strip bracing/herring bone to be replaced with "SOLID" noggins any more JD!! they have to be either timber strip or those fancysteel bracings!!! :o :-[

Title: Re: Cross Bridging/Bracing
Post by woodsmith on May 28^th, 2006, 7:49pm

[quote author=WOLF link=1148810268/0#4 date=1148839201]the local BCO's around here won't allow the strip bracing/herring bone to be replaced with "SOLID" noggins any more JD!! they have to be either timber strip or those fancysteel bracings!!! :o :-[/quote]

If you do the whole floor with solid braces it becomes a bit inflexible, but the odd one :-/

Title: Re: Cross Bridging/Bracing
Post by JerryD on May 28^th, 2006, 9:27pm

I thought the whole idea was to make the floor inflexible? ???

Title: Re: Cross Bridging/Bracing
Post by woodsmith on May 28^th, 2006, 9:50pm

I've just looked it up its "to remove the unwanted individuality of each joist" and to "prevent joists bending sideways"

Solid struts are "costly, add unnecessary weight and create an inflexible floor"

Title: Re: Cross Bridging/Bracing
Post by Bayden_Rank on May 28^th, 2006, 10:12pm

Many thanks guys - very helpful. I am not planning to tell the BCO BTW ;)

Did you see the BCO on Emmerdale pocket the bribe - disgraceful.

Title: Re: Cross Bridging/Bracing
Post by WOLF on May 28^th, 2006, 10:32pm

Yeah! they normally ask for twice what ever the amount was ;D ;D ;D ;D

( i don't watch much tv -especially soaps!!!)

Title: Re: Cross Bridging/Bracing
Post by Scrit on May 29^th, 2006, 12:17am

Emma who? ::)

Title: Re: Cross Bridging/Bracing
Post by WOLF on May 29^th, 2006, 1:35am

Emma Gration!!!

Title: Re: Cross Bridging/Bracing
Post by woodsmith on May 29^th, 2006, 8:46am

Emma Dale, Mrs Dale's daughter ::)

Title: Re: Cross Bridging/Bracing
Post by big_all on May 29^th, 2006, 9:35am

vivid emma gination ::) ::)

Title: Re: Cross Bridging/Bracing
Post by lofty on May 29^th, 2006, 4:21pm

Emm a gin n tonic ;)

Title: Re: Cross Bridging/Bracing
Post by ChippyMal on May 29^th, 2006, 6:35pm

Emma Roids !!!!

she's not very nice, but she has PILES of money ;D

Emma Ture !!!!

she doesn't act her age.

Title: Re: Cross Bridging/Bracing
Post by JerryD on May 29^th, 2006, 8:51pm

emma outta here! ::)

Title: Re: Cross Bridging/Bracing
Post by Scrit on May 29^th, 2006, 10:46pm

wrote on May 29^th, 2006, 8:51pm:

emma outta here! ::)

Emma gawd!