Important Warning Steel Reinforcement Sample Design Table		How to use the Design Tables Example: Determine required lintel specification for a 1800mm window opening and supporting colorbond steel roof residence with a 3.6m roof load width. Typical ‘insulbrick’ Lintel Codes & Details Steps Step 1 Step 2 Step 3 Determine roof loads RLW = 3600mm Adopt 4500mma Select insulbrick lintel dimensions 240 x 600 deep insulbrick lintel Determine required lintel span Span = 1600mm Adopt 1800mm Step 4 Step 5   Cross reference table to determine lintel codes Adopt = IB-246-A Refer 'insulbrick lintel codes' table to determine corresponding insulbrick lintel specifications

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