Is it OK to pack under a joist in a joist hanger in order to bring the top surface of the joist to the correct height ? Timber to timber you can nail higher or lower within tolerance of the design, but what about a hook-over masonry hanger ? Packing maximum the height of a brick. If so, can you use timber cut to the correct size ? Don't worry, this is only theoretical at present ! Cheers, Simon.
joist hangers - packing out joists
Oct 28, 2005
5 Replies
Thats what I do.
The rick with Joist hangers is to get the length spot on, it has to be a doubbleplustight fit.
Rick
I presume you mean the length of the joist, which must be tigher so that no lateral movement can take place, so the hanger is only taking downward force. I suppose the packing would should be the same structural grade as the joist. Cheers, Simon.
It should have at least the same resistance to compression as the joist - but tensile and shear strength don't really matter.
Yep, I do mean the length.
I use slate as packing, I have endless ammounts of the stuff, so its in every possible thickness.
Packing with small bits of wood is not so easy, you can use ply, as it comes in different thicknesses. Any spare ply I have gets cut into "packers", which have more users than you imagine.
Rick
No of course not, unless you intend to have exposed beams.
If you have different sections in the joists replace them or lay a suitable batton along the length. The floor must be level and the ceiling must be level.
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