"Treated" lumber COULD have several meanings, but it usually means treated to resist rot and attack by insects. Early treatments included creosote (thin railroad ties). "Green" lumber was treated with Chrome, Copper, and Arsenic. Due to health hazards, wood a consumer would be likely to come in contact with (handrails, etc) are now treated with a Copper Boron mix. These woods are used for outdoor stairs, decks, docks, gazebos, etc.- anywhere you would have direct contact with the ground.
In Hawaii, the Formosa Termite can do GREAT damage to lumber, so much of the house that is built in Hawaii uses treated lumber.
3 ways Plain Sawn, Quarter Sawn and Rift Sawn
Sawdust
It is a piece of wood made from trees
* through and through * quarter sawn * through and through * quarter sawn
Wood (timber) comes from trees that are felled and sawn into planks or thick beams.
Wood is cut by many different things and in many varied ways, any sharp implement or device will achieve a cutting, some of the more common devices are Axes, Saws, Shears, within just these 3 there can be hundreds of different varieties among them. The types of cuts (the most common ones used) made by saws for commercial use are: Through and through: This cut is the most economical, it produces plain-sawn, rift-sawn and a few quarter-sawn boards Quarter-sawn is the most expensive and wasteful, yet produces the most stable and beautiful figured wood. In short 3 different milling cuts are: 1: Through and through/Plain-sawn 2: Rift-sawn 3: Quarter-sawn
no the best wood is treated mahogony
Treated wood can hurt birds because of the dangerous chemical compounds used to treat the wood. It is known that some treated wood has arsenic in it and could poison the birds habitat.
Most of the time, the wood is treated. If not, you can treat (and paint) the wood yourself.
Wood (timber) is found in the trunks of trees (soft wood or hard wood) which can be grown, felled, and seasoned before being sawn into planks. Branches and lesser trunks can be shredded and used to form sheets of chipboard. The stripped bark from the felled trunks can be used as a garden mulch.
A sawmill is a place where trees are sawn and the wood prepared for use.
It is felled, taken to the sawmill and sawn into planks.