TH 2200 Lecture Notes - Lecture 13: Dust Mask, Particle Board, Fiberboard
Document Summary
This talks about the type of the tree, and not the density of the wood. This type pf tree has leaves that do not fall: hardwood. Usually rough cut given in quarters: 1-3. #1 high quality, straight grain, minimal number of small knots. #2 more knots, larger and pronounced (do-it-yourself stores) B some mistakes, though sometimes could be a. C plugged the knots and such are plugged, filled, and sanded. C this is used for flooring. D this is crappy wood, and it is used under flooring. X if there is an x at the end, that means that it is meant for exterior work, and they should never be used in the theatre: you pay for the layers (more layers = stronger) Lauan: bending board (all the grain is the same direction) Plywood (grains are in different directions: very important to wear a mask (will cut up your throat and lungs, this is commonly found in shops.
