Materials Use wood treated to the proper levels for the kind of water you are building in. For freshwater, use a minimum of .60 pcf pressure treated wood and use 2.5 pcf treated wood for building a pier or dock in saltwater. Your dock and pier hardware should be stainless steel, galvanized steel, or specially coated for marine

IMO, pressure treated wood is still wood and will eventually rot if buried in the ground. I told the client Pressure treated wood will rot, and does all of the time, but . That doesn't . Personal experience: they'll last more than 15 yrs and even as pier boathouse supports (under water). As far as the hot tub

Shop our selection of Water Resistant, Pressure Treated Lumber in the Lumber & Composites Department at The .

If you have to use wood posts, I believe AC2 treatment is rated for underground water use. Regular treated wood is not. We have used 2" galvanized pipe for pier posts, and they have been in the lake since the mid 1970's. The pier is not removed every year.

Isn't there oxygen underwater? Well of course at least in unpolluted water, this is how fish breathe, so is this oxygen less corrosive for wood? Is it only possible in mineral rich water like the lagoon of Venice? Is seawater different? Does it have to be pre-treated before it can stay preserved underwater?

structures with pressure-treated Southern Pine, but are not intended to be used as a substitute for plans and specifications .. the pressure-treated wood product has been inspected by a quality-audit program. Whenever .. that are constantly underwater do not decay there's no free oxy- gen. It's also why protected wood

Many different commercial treatment methods have been developed to protect wood from deterioration. The degree of success in using treated wood depends not only on the preservative and wood species but on the treatment method as well. These methods are divided into two main classes: pressure and nonpressure.

Q Logs that have been under water for decades are being hauled up out of rivers on the West Coast, and the wood is usable. AWPA Standard M4, in addition to requiring the use of pressure-treated wood, requires that copper naphthenate, a topical wood preservative, be applied to cut ends of and holes

Most pressure-treated lumber in the South is. Southern yellow pine. Moisture. It is commonly believed that wood shrinks as it loses moisture and swells as it gains mois- ture. This is partially true. Actually, wood will change dimension only between two precise moisture conditions. One condition is when the wood is void of

Treated wood is used for decks, mailbox and light posts, swing sets and playscapes, picnic tables, landscape ties, underwater dock pilings, oceanside boardwalks, telephone utility poles and, believe it or not, residential building foundations in some parts of the country! You can purchase pressure-treated (PT) wood as

What are the main advantages of choosing Wood? 2. What makes Fence-All Wood different? 3. What type of wood is best? 4. Do you offer alternatives? 5. Can you tell me more about Red Cedar versus White Cedar? 6. Is Pressure Treated a more expensive, maintenance-free lumber? 7.

By comparison, if I had used 4-by-4 southern pine posts pressure-treated with CCA (chromated copper arsenate), it is unlikely that they would have held up even this long. Understanding Decay it sank a century ago. (Underwater, where there is very little oxygen, wood lasts for decades, or even centuries, with little decay.)

The Wood Doctor offers his prognosis for outdoor projects using cedar and treated pine. 1998. Properly treated southern pine lumber or posts will last for a hundred years even when in contact with the wet soil. Unfortunately, though it was said pressure treated pine would last decades, that is not always the case.

Hot-dip galvanized or stainless steel fasteners, anchors and hardware are recommended by the Pressure Treated Wood Industry for use with treated wood. This has Installation of pile using an impact hammer (i.e., pile driving) can generate intense underwater sound pressure waves that can injure or kill fish. Measures to

Fighting Decay in Harsh Conditions. Proper installation, coating, and maintenance are important to keep wood from rotting (see the previous post on How to Keep Wood Homes Solid). For exposed places that naturally get very wet or that touch the soil, pressure-treated wood is often used as an additional

It is essential Radiata Pine that is treated with a process called Acetylation. This process chemically alters the wood making it extremely dimensionally stable (won't shrink or twist), unattractive to insects and extraordinarily rot-resistant. Unlike pressure treated wood there are no harsh chemicals used in

Wolmanized wood is poles, piles, timbers, posts, or plywood that is pressure-treated with CCA preservative to provide structural protection from termites and fungal decay. For 70 years, CCA-treated wood has been specified in a wide variety of applications; as of December 30, 2003, Wolmanized wood may be produced

According to Building Products Plus, a timber-supply company, pressured-treated lumber is necessary when constructing a dock in a freshwater or saltwater location. However, harmful chemicals can enter the water supply from the chemicals used in making pressure-treated lumber, so a builder must be

Frequently Asked Questions. Home Product Info Frequently Asked Questions. You've got questions about lumber, and Spartanburg Forest Products has the answers. After more than three decades in the business, we've shared a lot of information. Here is a list of the most frequently asked questions we receive.