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Tue 16 Mar, 2010 09:06 am
Does the process of heat treatment reduce the capacity of lumber? For example if you use a 2"x4" as a restraint device in a container and it is rated at 5,600 pounds capacity what woul the same lumber that is heat treated be rated at.
@onebadbo,
As far as I know heat treating lumber is a prophylactic procedure to insure no pests are imported or exported in packaging material.
I've never heard that it significantly changes the strength of the wood
@onebadbo,
A 2x4, 5600 pounds? in tension or compression? I may well be wrong but either seems like too much to me.
74 4x8 3/4" plywood
112 4x8 1/2" plywood
@onebadbo,
I know trhat steam treating woods will reduce the compressive strength of wood on its length by up to 15%. And it increases the permeability by a similar amount. In boat building we usually lay on FRP sheets and iso glues, or else we varnish the hell out of the wood if were using it as strip or sheet covering
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