shower waste position in centre of a floor joist

[kirby2412]

I have a problem re the waste for shower tray lines up exactly on a floor joist. i understand the max cut in the joist allowed is 0.25% of the joist diameter and this will be insufficient.
it is not really an option to raise the level as the waste depth is large.(fast flow system)
Any advice welcomed how to get round this problem...
im not able to consider moving the tray position due to limited bathroom space

 

[tryitandsee]

Quick search, is this any good?

www.renovation-headquarters.com/ceiling-floor-entry.htm

 

[Richard C]

These are the regulations;
http://www.eastdevon.gov.uk/bc-guidancenote7-notchingofjoists.pdf

Drilling holes is one thing, notching is not a good idea.

 

[gasbanni]

Get a different shower tray ! only sensible option !

Allign waste where it misses a joist !

 

[cumbriahandyman]

Quick search, is this any good?

www.renovation-headquarters.com/ceiling-floor-entry.htm[/QUOTE]

A great site that...

Figure 2 - Fishing electrical cable and wire behind a skirting

 

[xr4x4]

what about bolting another joist alongside the old one and then cut a bit out the old one?

 

[electronicsuk]

Quick search, is this any good?

www.renovation-headquarters.com/ceiling-floor-entry.htm[/QUOTE]

A great site that...

Figure 2 - Fishing electrical cable and wire behind a skirting

Perhaps it's permitted in America. Likewise, perhaps those instructions for the modification of joists do not meet UK building regs.

 

[WabbitPoo]

Is the waste in the middle of the try or in one corner? If the latter, can you rotate the tray by 90 degrees?

 

[algas]

You could trim the joist & bolt a steel plate to both sides of the remaining part of the joist, i had to do this on mine & its been fine for 15 yrs but its not a great span approx 3m