Noggins or Herringbone struts

[dd2005]

All,

Our upstairs floor does not feel stable under foot (3m span) and removing the ceiling downstairs for another job I found there are no noggins or struts between the joists. Am I best to install solid noggins or steel herringbone struts? I cannot install the struts on top of the joists as the flooring has not been removed above. Can I nail the struts to the side of the joists.

Many thanks

 

[^woody^]

Solid noggins

 

[big-all]

make wooden ones and screw to the face

metal ones will probably just bend/flex with movement if nailed to the face
noggins will only work if you can square up the timbers or cut them individually to fit

 

[catlad]

If you only have access from bellow, noggins cut to a snug fit.

 

[dd2005]

That was my initial thought, thanks for the replies.

 

[maltaron]

And dont forget that noggings or herringbone are useless without folding wedges between the last joist and wall.

 

[tim00]

What section size are the joists?

Where the joists sit in the bearing wall pockets are they firmly wedged-in? ie. they dont spring up, even a small amount.

 

[garyo]

And dont forget that noggings or herringbone are useless without folding wedges between the last joist and wall.

Read more: http://www.diynot.com/forums/building/noggins-or-herringbone-struts.325735/#ixzz1wceiSAsO

I intend fitting these after the roof it on and the timber has had chance to shrink as much as it wants to. Is that about right?

 

[landyandy]

Dont noggins produce squeeky floors?

 

[noseall]

Dont noggins produce squeeky floors?

No. T&G chipboard produces squeaky floors as well as poorly fitted floorboards and poorly fitted plumbing.