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[f]
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Frame top plate 100x50 [2x4]
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[p]
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Sprocket 75x40 [1-1/2x3]. Member from wall to fascia to support soffit
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[j]
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Rafter 100x50 [2x4]
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[s]
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Soffit 4.5 [1/4"] thick under eave cover
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[k]
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Ceiling joist 200x50 [2x8] spans the width of the garage and is fixed to the rafters
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[ba]
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Barge board 150x25 [1x6]
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[m]
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Purlin 75x50 [2x3]
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[fa]
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Fascia board 150x25 [1x6]
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[o]
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Ribbon plate 50x50 [2x2] fixed against wall frame to take sprockets
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The ribbon plate [o] is fixed horizontally to the side walls 96 [3-3/4"] down from the top plate [f]. This is called the "drop height".
