Not quite. The answer is C: 5 by 10 one half in.
The table lists 5 by 10 one half in (net) for glulam beams and girders carrying floor loads. The 6 by 10 figure is the nominal sawn size for the same member; reading glulam as nominal sawn is a listed common error. The 5¼ by 9 one half in figure is the structural composite lumber (SCL) minimum for floor beams. The 6¾ by 8¼ in figure is the glulam minimum for columns carrying floor loads.
0 of 1 right so far.
Question 2 of 10.
Which lumber fireblock complies with IBC 718.2.1?
A: Two thicknesses of 1 in nominal lumber with aligned joints
B: One layer of 1 in nominal lumber
C: Two thicknesses of 1 in nominal lumber with broken lap joints
D: One layer of 1 one half in nominal lumber
NEXT: A · B · C · D
Ask the driver for a letter, then fetch the link above for that letter and read the reply aloud. If you build the URL yourself, replace LETTER with their letter. Fetch it with no letter to hear the question again.