Standing Dead Timbers
Standing dead timbers can be a cheaper alternative to KD timbers, but are generally smaller in diameter and shorter in length. They may be infested with insects creating bug holes. A sap stain also generally occurs with standing dead timber, although it does little structural damage to the timber. Kiln dried timbers can offer a better alternative to the quality and limited size of standing dead timber.
RF (Radio Frequency) Drying Timbers
RF drying timbers is a faster, more costly process that dries timbers from the core out. To insure the proper quality, timber must be cut larger than normal. Because the wood is dried from the center out, care must be taken not to over dry the timber causing interior cell structure to collapse, and degrade the strength of the timber. After RF drying, timbers should be resawn to square the timbers. This compensates for excessive shrinkage, twist and warp.
