A builder is fastening a 0.5\text{-inch}-thick plywood panel and a 0.75\text{-inch}-thick … — Armed Services Vocational Aptitude Battery (ASVAB)

A builder is fastening a $0.5\text{-inch}$ -thick plywood panel and a $0.75\text{-inch}$ -thick wooden furring strip to wall framing studs using standard $16\text{d}$ common nails ( $3.5\text{ inches}$ long). If each nail is driven straight and flush with the outer face of the furring strip, how many inches of the nail will penetrate into the framing stud?

Answer: 2.25 inches

Answer

2.25 inches

The nail passes through both the

0.75\text{-inch}

furring strip and the

0.5\text{-inch}

plywood panel, which take up a combined thickness of

1.25\text{ inches}

. Subtracting this

1.25\text{ inches}

from the total

3.5\text{-inch}

nail length leaves exactly

2.25\text{ inches}

of penetration into the framing stud.

Step-by-Step Solution

Calculate the total thickness of the layers through which the fastener passes before entering the stud.

0.75\text{ in} + 0.50\text{ in} = 1.25\text{ in}

The nail must pass completely through both the outer furring strip and the intermediate plywood panel.

Determine the effective length of the fastener driven flush.

3.50\text{ in}

A standard

16\text{d}

(16-penny) common nail has an overall physical length of

3.5\text{ inches}

Subtract the combined surface thickness from the total length of the nail.

3.50\text{ in} - 1.25\text{ in} = 2.25\text{ in}

The remaining portion of the nail shank embeds directly into the receiving wooden stud.

Key Concept

Fastener penetration depth and standard pennyweight length calculation

Estimated Time:1m 0s

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

Topics

More questions from this topic