Set Square wrote:

In an earlier contribution to this discussion,
Tony wrote:


Hi
Is it practical (i.e. is there enough working space) to fit
herringbone strutting between joists when you only have access to the
joists from below, the top side being floorboarded?

Plan B is to brace using timber and skew nailing, but the joist
centres and joists sizes are not consistent making cutting the timber
to size a bit of a chore.

thanks
tony


What are you *actually* trying to achieve? If you need noggins to stop the
joists twisting, these should be fitted perpendicular to the joists, and
should be almost as tall as the joists themselves. If you offset them, you
can nail through the joist into the end of the noggin.


Its actually better to use herringbone - its recommended building
practice, and yes, its possible though awkward to install from below only.