It's common practice to use off-cuts from the joists as noggings. Skew nailed into place Any span more than eight ft should have a row of noggins. Especially if the timber is damp.
Sometimes you will see a row of plasterboard nails in a ceiling where the plaster has popped off the heads. This is caused by the joists twisting as they dry out. Noggings/struts stops this.
BTW. Use joist hangers, don't build into wall, much better for many reasons.
Yebbut, imagine trying to join two floorboards on a joist only one inch thick.
:) nail at an angle?
Out of interest, at what point does the double the depth 8x the stiffness equation break down? If 10x1 is 4x as stiff as 2x5, what about 100 x 0.1? That surely isnt going to be very stiff, because it lacks stability and compressive strength.
NT
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