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Definitions (18)
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sub-structure
The deck construction that is located below, and supports the deck boards and railing system. Components include joists and hangers, ledgers, rim joists, beams, posts, anchors and footers. Wind Load:
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pressure treated wood
Wood subjected to a high pressure treatment of chemicals as a preservative. Rise:
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riser
The vertical piece between two stair steps. Shade Structure:
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post anchor
A metal piece attached to or imbedded in the footing that attaches the post to the footing and keeps the post from being exposed to moisture in the ground. Post Cap:
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pier block
A masonry post. Piers often serve as above-grade footings for posts and often are made of pre-cast concrete. Post:
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ledger
A length of board, that is horizontally attached to the side of a house and holds up one edge of a deck. Linear Feet:
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live load
The amount of weight a deck is designed to support. Most deck designs call for a live load of 60 pounds per square foot. Low-Voltage Lighting:
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nominal dimensions
The label given to a standard piece of lumber. For example, 2x4 is the name for a rough- cut piece of about 2x4 inches. It is then finished by planing and sometimes sanding it down to its actual dimensions (1 7/16" x 3 1/2"). On Center:
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footing
The below-ground support of a deck's post, usually made from concrete. Grade:
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joist hanger
A pre-manufactured metal piece typically attached to a ledger or beam to support a joist. Joist hangers should be galvanized. Joists:
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