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Rise, distance, between steps
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Fire resistant cover door construction
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White sheet metal clad bottom side, 3/4" particle board core, 1.5" polystyrene foam panel on the top of
the cover door, White MDF panel on the top of insulation, Fire resistant, no rating available.
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Fire rated cover door construction
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White sheet metal clad all sides, 7/8" Grenamat(R) board core (mineral based product), all seams overlap
are riveted, 1.5" polystyrene foam panel on the top of the cover door, White MDF panel on the top of insulation, * 1 hour
fire rating available
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*Clear opening
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(C) - 5", rough opening width minus 5"
(D) - 11", rough opening length minus 11"
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