per wiki
A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members.
What does "vertical member" mean here? Is hanging beam a type of such vertical members?
Best Answer
A beam is a Horizontal member, it transfers the load to the vertical members such as wall studs or posts.
When you lay down on a bed or on the floor you are the horizontal position, When you are standing on your feet you are in the vertical position.
Wikipedia