A drywall scope has 28 outside corners, each 9 ft high. Corner bead is ordered in 10 ft sticks with no splicing planned. What stick count is needed?
Correct Answer
C) 28 sticks
Each 9 ft corner needs one 10 ft stick when no splicing is planned. With 28 outside corners, the order is 28 sticks. Other choices divide total footage by stick length and ignore no-splice waste, or add extra allowance not stated.
Why This Is the Correct Answer
Each 9 ft corner needs one 10 ft stick when no splicing is planned. With 28 outside corners, the order is 28 sticks. Other choices divide total footage by stick length and ignore no-splice waste, or add extra allowance not stated.
Why the Other Options Are Wrong
Option A: 26 sticks
corner bead length, choice b: 26 sticks backs into 26 when divided by 28 / 28; the accepted setup gives 28 on that same base.
Option B: 31 sticks
corner bead length, choice c: 31 sticks backs into 31 when divided by 28 / 28; the accepted setup gives 28 on that same base.
Option D: 35 sticks
corner bead length, choice d: 35 sticks backs into 35 when divided by 28 / 28; the accepted setup gives 28 on that same base.
Memory Technique
Say the corner bead length rule aloud as a chain; the chain ends at 28 sticks, not an intermediate stop.
Reference Hint
Open Gypsum Construction Handbook, 7th Ed., 2014; use the index entry or section for "Gypsum board corner reinforcement takeoff" to confirm that Each 9 ft corner needs one 10 ft stick when no splicing is planned.
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