Framing & StructuralQuestion 337 of 700
CALCULATION: An engineered LVL header is specified as a 3-1/2 inch wide member built up from plies that are each 1-3/4 inch thick. How many plies are laminated together?
a.1 ply
b.2 plies
c.3 plies
d.4 plies
Explanation
Total width divided by ply thickness: 3.5 / 1.75 = 2 plies. A single 1-3/4 inch ply gives only 1-3/4 inch, three plies give 5-1/4 inch, and four plies give 7 inch, none of which equals the specified 3-1/2 inch width.
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