The maximum notch depth is how many fractions of the joist depth?

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Multiple Choice

The maximum notch depth is how many fractions of the joist depth?

Explanation:
Notches weaken a joist’s bending strength, so the depth is limited to keep enough material reacting to the load. The standard rule is that a notch may not exceed one-quarter of the joist depth. This 25% limit helps preserve sufficient cross‑sectional area and stiffness; deeper notches would significantly reduce capacity and may require reinforcement. So the maximum notch depth is a quarter of the joist depth.

Notches weaken a joist’s bending strength, so the depth is limited to keep enough material reacting to the load. The standard rule is that a notch may not exceed one-quarter of the joist depth. This 25% limit helps preserve sufficient cross‑sectional area and stiffness; deeper notches would significantly reduce capacity and may require reinforcement. So the maximum notch depth is a quarter of the joist depth.

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