unless you got a great deal on them, it would never make $$$ sense to use a microlam in lieu of a TJI joist or dimensional lumber. . .microlam is too costly
if you have them on hand, I would call the manufacturer. . .they should be able to give you the numbers or send you a book with the span charts
14ft to girder
A joist note on a first floor plan would refer to the Joist below that floor, a joist note on the third floor plan woud be for that floor.
To calculate floor support requirements you need to calculate the maximum load. Determine the breadth of the joist, span and fiber stress for each floor system. In addition, you will need to determine the total area supported and divide it by one joist.
it depen on the size of the joist
Floor joist or ceiling joist? Floor joist have a board on the end all the way along the side of the building called a rim joist. Like the cross bar on the top of a T. Ceiling joist are nailed down into the top plate of the wall and to the rafters where possible.
to support the sub floor.
Joist possibly ? A joist is the boards under the floor and above the ceiling that span the room or building. What the floor or ceiling is attached to.
Not sure what you mean? floor joist span table???
Joist = one of the parallel pieces of timber to which the boards of a ceiling or floor are fastened
As a roof truss/I-joist/beam designer, I can tell you that you should not cut ANY holes in a microlam beam without consulting an I-joist/beam designer first. Microlam beams are not calculated to have holes cut in them. This requires special engineering.Depending on the size of the hole and it's placement, and the load that the beam is carrying you may not be able to cut a hole in it at all. Considering the 25' length (if this is a clear-spanning beam) I can warn you that abeam designer is probably going to tell you to find a different solution for this issue.Hope this helps!
It is called bridging.
30 degrees