In Japan, pressure-treated lumber
is a value-added forest product, which is controlled by both industrial and agricultural standards.
We replaced all the bottom wood and the support wood with pressure-treated lumber
. For the top decking, they wanted a pure, hard, vertical-grain redwood.
Forest Service have recently launched independent investigations into the efficacy of water repellents and coatings on pressure-treated lumber
. Although their preliminary data indicate that such finishes keep arsenic and chromium in place, neither agency has data yet that indicates how often treated wood would have to be resealed.
The Missouri Health Department issued several recommendations from washing hands to not putting pressure-treated lumber
in vegetable gardens.
Install a Z-flashing approved for pressure-treated lumber
where the bottom of the ledger will be.
Use pressure-treated lumber
where it touches the concrete floor.
Moreover, use of wood coatings in indoor applications, consistent manufacture of pressure-treated lumber
, construction-related repair activities, and product upgrading would further bolster the demand for wood coatings.
These served as the main supports for the 18-inch-wide by 26-inch-long, 16-inch-deep planters made from pressure-treated lumber
, mostly 2-by-4s and 2-by-6s with l-by1 s for upward growing plant supports.
In addition, increases will occur due to a shift in product mix to higher value, environmentally friendly items, as well as steady production of pressure-treated lumber
and healthy levels of construction-related improvement and repair spending.
The DW744X is designed to cut heavy hardwood materials, including plywood, pressure-treated lumber
, wafer-board sheathing, 2x and 4x materials, floors, doors and stairs.
But when comparing the completed WPC deck costs (with pressure-treated substructure), WPC selections are estimated to cost a mere 15 to 20 percent more (installed) versus a comparable deck constructed entirely of pressure-treated lumber
. Since the WPC deck allegedly requires lower maintenance (3) costs, the actual payback period for a deck constructed with higher cost WPC deckboards is estimated at 2 to 5 years compared to a deck constructed entirely of pressure-treated lumber
I own several technical resource CDs on building and construction, but I find the EBN Archives to be the best for its wide coverage of topics--everything from "big-picture" topics such as structural insulated panels (SIPs), moisture control in buildings and roofing options, to specifics such as ceiling fans, nails and pressure-treated lumber