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Fact: All lumber, regardless of the species of wood, will eventually split or crack.
Reason:
Lumber is a porous material. Wood swells when it absorbs moisture from rain or snow and shrinks when the sun’s heat releases the moisture. This drying process creates stresses in the wood which are often relieved by warping, splitting, and cracking.
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Fact: The natural drying process of wood causes shrinkage, warping and twisting.
Reason:
In the installed climate, wood cells lose their natural water content to the air, which causes shrinkage and movement.
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Fact: Splitting can occur near the end of a piece of wood when installed.
Reason:
Nails can cause the wood fibers to split. Additionally, the ends of a board dry quicker than the middle. This stress can cause splits.
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Fact: Gaps will develop between pickets and boards.
Reason:
Every piece of wood is constantly taking on or giving off moisture in an attempt to reach the same humidity level as the surrounding atmosphere. During long dry periods, boards will shrink, leaving gaps. Additionally, during periods of heavy rain, the wood expands and the gaps will close.
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Fact: Water repellent board will initially shrink when installed.
Reason:
All ACQ treated lumber, including water repellent, will internally dry during the first 60 to 90 days after installation. This drying process will lead to shrinkage and some checking on the boards.
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Fact: The heads of nails driven into fencing will eventually rust, and “streaking” will occur down the face of the pickets or boards.
Reason:
When nails are driven into a piece of wood, usually the hammer knocks off the galvanized coating on the head of the nail. Eventually, the streaking caused by the rusting of the nail head will blend with the weathered gray of the wood.
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Fact: Wood changes color over time.
Reason:
Many species of wood turn gray as it ages, but some turn silver or almost black. This is a natural reaction to the aging process.
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Fact: All wood fence weight and sizes can only be approximate.
Reason:
A variation in moisture, content, and industry standards all contribute to the size and weight of wood fences.
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