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Deep Seat Cut Questioned To the Editor: The article “Fast Layout for Tall Rake Walls” (4/01) appears to recommend a construction shortcut that is not permitted by the building code used widely in the Northeast (CABO One and Two Family Dwelling Code). The author finds himself with a plan showing both 2x6 and 2x10 rafters. To simplify his wall framing, he sets all the wall plates at the same elevation. To achieve a consistent eaves line, he is then forced to cut a deep notch to form his birdsmouth in the 2x10 rafters. The code prohibits such notching for the reason that horizontal shear forces at such notches can cause splitting to propagate up the member from the corner