Sleeper walls

[adwt2004]

Hi,

If 'I'm building a suspended floor I will need to support this in the middle with a sleeper wall to stop excessive bounce. Span is around 3m.

Do you have to build a honeycomb wall for the whole length, or is it permissible to build a number of piers and place a joist at a right angle to the normal joist runs?

Is that an allowed method?

 

[bobasd]

is the total span 3m an you want to support the joists at 1.5m?

 

[^woody^]

Use deeper joists.

 

[adwt2004]

is the total span 3m an you want to support the joists at 1.5m?

Yes that’s roughly the setup. It’s how the rest of the house is designed. I could use bigger joists but then that means removing more earth to provide the gap between the timber and any damp on the ground.

 

[^woody^]

I could use bigger joists but then that means removing more earth to provide the gap between the timber and any damp on the ground.

As opposed to removing earth to put a foundation in, wide concrete strip and build a brick wall for the sake of some 150mm joists?