Wall Plate A horizontal timber which runs along the top of a wall to support the ends of joists and spread their load.
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Waney edge An un-smoothed, natural wavy edge on a plank, which could be covered by tree bark.
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Warp To bend or twist as a result of damp or heat.
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Wastepipe Drainage pipe for baths, basins, WCs.
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Weathered Wear and tear caused by exposure to the weather.
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Weep Hole A small hole at the bottom of a wall which allows water absorbed by the wall to drain away outside.
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Wet Rot Damage and decay of timber caused by damp, less serious than Dry Rot.
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Wet Trades All plastering and rendering, both of which require large amounts of water.
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Woodworm Colloquial term for beetle infestation, by far the most frequently encountered insect attack in structural and joinery timbers.
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