Wood is kiln dried to make it dimensionally stable and to bring its moisture content into a range that improves its characteristics.
There is no way to harden the wood of a Tulip Poplar tree as it grows. Wood cannot be hardened until after it is harvested, at the time of harvesting and cutting, it may be treated with chemicals or sealants that make the wood stronger.
There are three basic reasons to treat wood with chemicals: to inhibit decay, to prevent insects from eating it, and to make it flame-retardant.
Aaron Teyegaga has written: 'Ecological studies on microbial deterioration of untreated and copper-chrome-arsenate treated wood exposed to the soil'
it is the bark
Wolmanized Wood is a brand of pressure treated wood.
Depends on the dimensions and type of treated wood. Not signifcantly different from untreated wood.
Wood, which is subject to moisture in a garden, for instance, must be regularly treated with a preservative to prevent the wood rotting.
PT Wood.
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.
"Treated wood can be soft or hard." But, generally what is bought from a lumberyard is soft.
Pressure treated wood can last up to 20 years or more and most pressured treated wood sold in stores such as Home Depot offer a limited lifetime warranty.
Preservatively-treated (pressure-treated) wood does not meet the standard, unless the wood was heat-treated and stamped HT prior to preservative treatment.