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Posts on a deck are also typically pressure treated wood and standard sizes are 4x4, 6x6, and 8x8. These posts give structural support to the railing assembly and are the most critical part for the safety of the guard rail assembly. [15] In between the posts, two 2x4s are attached to the posts with screws for the best connection.
The structural frame of a pole building is made of tree trunks, utility poles, engineered lumber or chemically pressure-treated squared timbers which may be buried in the ground or anchored to a concrete slab. Generally the posts are evenly spaced 8 to 12 feet (2.4 to 3.7 m) apart except to allow for doors.
Non-pressure methods are the application of preservatives by brushing, spraying, or dipping the piece to be treated. Deeper, more thorough penetration is achieved by driving the preservative into the wood cells with pressure. Various combinations of pressure and vacuum are used to force adequate levels of chemical into the wood.
Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
Asthma is one of the most common lung diseases in the world, affecting some 262 million people worldwide and causing more than 450,000 deaths annually, per the World Health Organization.While ...
From June 2009 to December 2012, if you bought shares in companies when Donald E. Powell joined the board, and sold them when she left, you would have a 3.6 percent return on your investment, compared to a 51.3 percent return from the S&P 500.
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