What is pressure treated timber?

You heard about pressure treated lumber, but what does it mean?

Developed by a doctor named karl wolman, which is the process of placing preservatives into wood. Because of the invention a new industry a come about. From using rebar and pressure treated lumber solid structures that are long lasting can be constructed.

Pressure treating is a process that forces a chemical preservative deep into the wood. A wood product will be placed in an air tight tank and the air is completely removed. The tank is then filled with the preservative under high pressure, forcing it deeply into the wood. The tank is then drained and the remaining preservative reused. Once the wood is taken out it sent to the lumberyard to be shipped. This is how pressure treated timber process works.

By doing this it offers an unappatizing meal for insects. This unique application boomed the "http://www.usexportdirect.com">wholesale wall timber companies.

There are four levels for pressure treatment for pressure treated lumber, regardless the chemical used. The standard 4 ratings are:
0.25 Above ground level
0.40 Ground contact
0.60 Wood foundation that is permanent
2.50 Salt water

This information is required to be posted on each board and is either marked with ink on the board or on a plastic tag that is stapled onto the end of. Since climates differ you shouldn't need be concernced with thses numbers as the lumber yard will be. In order to get the best product for your project tell you building supplier the pt number either it is below, above, or on.!

A project deadline is important as is the materials used for the project. Research companies who offer wholesale building supplies as they can give you some great prices and may even be able to buy your products from you.

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Markus Skupeika
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