It's hard not to be overwhelmed by the sheer number of options when purchasing lumber. In addition to the various lengths and thicknesses of boards, there's also both treated and untreated wood ...

Compared to regular, untreated wood, the new material is over 10 times stronger, and up to 20 times as rigid, making it a serious option for construction applications where metals are typically used.

The researchers tested their theory using two raised planter gardens, one made of untreated Douglas-Fir lumber, and a second made of Douglas-Fir treated with Copper Azole (CA-C): Soil and plants ...

Otherwise, kiln-dried, untreated lumber that is free of any metal or foreign substances can be used as firewood. More firewood information is available online. Approved firewood vendors must ...