Diy pressure treated lumber. The chair shown is made from cedar but you could also use cypress fir or pressure treated wood. Pressure treated lumber has been a controversial topic for many years. If you dislike pressure treated wood then watch this video a good alternative for the drying shed duration. Pressure treated lumber is any wood that has gone through a preservation process in which pressure is used in order to force the preservatives into the wood.
Use a speed square to mark your cuts and cut the ends off accordingly with a circular saw. There are exceptions to this such as foundation grade lumber and plywood which needs to be dried to a moisture content of no more than 19 percent for lumber and 15 percent for plywood. It costs 20 to 100 to make depending on the wood you choose. All of the 8 foot pieces need to be 90 inches long and the 10 foot pieces need to be 118 inches long.
The treated lumber will be placed into cylinders which are then closed and pressure or a vacuum is applied to the wood. It can be stained or painted and is frequently used as fence panels wood fence posts framing wood decking and more. The frame will be built out of 2 x 4 pressure treated lumber. It offers more stability than other treated woods which shrink as they dry leading to cracks splitting and checks.
Chromated copper arsenate cca was the most controversial treatment and was banned for consumer use by the environmental protection agency in 2003. You can build a chair like this in a day easily. Ill use 9 eight foot lengths of wood and 2 ten foot lengths. But standard respiratory and eye safety wear is recommended as when working with untreated lumber timbersil arrives on the racks dry and ready to paint or stain.
The purpose for chemical pressure treatment is to protect wood from rot decay and wood ingesting insects. Treated lumber or pressure treated lumber is wood thats been infused with preservatives to protect it from the elements including rot and insect damage. Pressure treated wood has been around for nearly 70 years yet most of us still know very little about this popular outdoor building materialto start pressure treated wood is softwood lumber. Most dimensional lumber is dried in a kiln but treated wood is not dried after treatment.