The treatment process involves placing a load of lumber in a huge cylindrical chamber called a retort with a door on one end that can be sealed airtight and then forcing waterborne chemicals into the wood under pressure.
1 grade pressure treated lumber.
Treated wood can last more than 40 years.
Use when appearance is not important.
This lumber is pressure treated in order to protect it from termites fungal decay and rot.
Pressure treated lumber is ideal for outdoor construction as it has a long useful life span and is much less expensive than alternatives.
Pressure treated lumber is divided into two grades 1 and 2 based on the appearance and composition of the wood.
Boards contain small and few knots knots may be no larger than 2 one hole is permitted every 3 feet no splits larger than the width of the board stronger than 2 grade because it has fewer and smaller knots 2 grade lumber.
And because stronger lumber has fewer and smaller knots it s typically more attractive.
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1 lumber is usually used for applications where appearance matters while 2 lumber is used where it will not be visible on the finished product.
So the general rule of thumb for lumber grades is this.
It s easy to work with and terrific for diyers.
2 lumber also called standard has a rougher knottier look.
Appearance grade pressure treated board 3 pack.
Use when both strength appearance are important.
Formed from high quality 1 grade dense 2x6 southern yellow pine dense select structural or 1 prime marine deck is guaranteed to be both attractive and durable.
Ideal for a variety of applications including decks landscaping and other outdoor projects treated wood is typically still wet when it s delivered to the home depot or job site.
Pressure treated wood is an affordable and attractive solution for decks and docks alike.
Find pressure treated lumber at lowe s today.