We have a ceiling beam that is a standard 4x8 over 12 feet.
Let's stipulate that is properly sized for the weight load over that span.
But, what if, in order to place that beam, we need to notch it a bit on the very end: so it is a 4x6 for 2 inches where it rests on the post, but is then 4x8 the rest of the (unsupported) span.
I assume the deflection is now greater than when it was 4x8.
But is it degraded all the way to the deflection of a 4x6 ? Or is it somewhere inbetween ? This only happens on one end - on the other end, it is a full 4x8.
If it's somewhere inbetween is it ... just a bit weaker than a 4x8 or just a bit stronger than a 4x6 or ... ?