For the preconstruction estimate lock at the community-pool bathhouse, the stair return run requires 107 LF of handrail tube stock plus 10% waste. Stock comes in 20 ft lengths. How many lengths are required?
Correct Answer
B) 6 lengths
Linear stock count equals required length with waste divided by stock length, rounded up.
Why This Is the Correct Answer
Linear stock count equals required length with waste divided by stock length, rounded up.
Why the Other Options Are Wrong
Option A: 5 lengths
5 lengths is below the supported result for handrail tube stock; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 7 lengths
7 lengths is above the supported result for handrail tube stock; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 8 lengths
8 lengths is above the supported result for handrail tube stock; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Field Engineer takeoff: count the condition before counting the package Tie the cue to Handrail Tube Stock Field.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Metals; handrail stock length estimating; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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