Joists -- Hang Them or let them ride?
Joists -- Hang Them or let them ride?
(OP)
When joists run over beams; what is the difference in letting them ride on the beam or just hang them with joist hangers. What is the difference structurally and cost? I am not sure how expensive joist hangers are?






RE: Joists -- Hang Them or let them ride?
Hangers are used when the space is not available and the beam is required to be in the same plane as the joists.
RE: Joists -- Hang Them or let them ride?
If possible, joists fastened to a nailer bolted to the top flange of the beam is prefered, if it works with the total building.
RE: Joists -- Hang Them or let them ride?
if you lap them over the beam, make sure you provide blocking to prevent rotation.
RE: Joists -- Hang Them or let them ride?
If hanging dimension lumber joists from steel beams, be sure to set top of joist higher than top of steel to allow for shrinkage of the joist. Otherwise, you will see a hump in the floor or roof after shrinkage has taken place.
BA
RE: Joists -- Hang Them or let them ride?
1. The overall allowable building height, and
2. Mechanical chase issues.
Mike McCann
MMC Engineering