Recently, have many unit bearer incoming messages the inquiry is managing substitute lumber statistic caliber, to facilitate everybody understands the knowledge of this respect, we are special classics of cento former state appoint lumber is managing of office print and distribute " about managing substitute the regulation of lumber calculation method and statistical caliber " concerned section substitutes about lumber statistic caliber introduces as follows, consult for everybody.
One, all sorts of man-made board spare capacity, press statistic of following conversion rate:

1, common three-layer plywood, every use one stere, press managing log 2 stere statistic; Common 5 plywood, every use one stere, press managing log 0.9 stere statistic.

2, beaverboard, every use one stere, press managing log 3 stere statistic.

3, particieboard, joinery board, every use one stere, press managing log 2 stere statistic.

2, use following substitute, press only in those days the measure that new investment uses is one-time computation, repeat calculation no longer later. Conversion rate is as follows:

1, use window of one square metre steel, plastic window, by substitute lumber 0.1 stere statistic.

2, use door of a metal, plastic door, by substitute lumber 0.18 stere statistic.

3, use door of wood of a steel, by substitute lumber 0.06 stere statistic.