I can help
Do you want the properly sized LVLs?
Is it supporting the second and third floors?
Is there an attic, too?
What is the joist length on each side of the beam?
Will it support any ceramic tile?
But this beam itself is supporting the second and third floors only, correct?
You said snugged next to the front door. Is it parallel or perpendicular to the front door?
Can you estimate the joist length on each side?
You really need a 7" x 24" 2.0E LVL to limit deflection to L/600 for the tile.
You would need a MC12x50 on each side of the existing wood beam
It could be a 3.5" x 24" on each side of the existing.
I listed the steel channel you would need on each side.
If you use the 7" x 24" LVL, then you don't need the channels.
Adding the two channels would be if you leave the existing LVL in place.
Do you have any other questions for me on this topic? If you could rate my answer, I would appreciate it.
I can do that calculation and provide a sketch as a premium service. I will submit the offer now. If you accept it, I'll need about 2 hours to get it together.
I submitted the offer. I'll need to know where the top of the channels are relative to the bottom of the joists.
What is the maximum depth of plate that you can handle there? Just to let you know, the plates will be heavier than the channels since the steel is not as efficiently placed.
What is the exact depth? 11.25" or 11.875"
You would need a 1 7/8" x 12" plate on each side full length.
Yes, but the stiffness of the wood is not high enough to compete with the steel, so it will not attract load. I said the plate would be heavier, because a plate is not an efficient use of steel in bending.
And 12" isn't much depth to support that much load over a 22' span.
No problem. To give you a sense. Each channel weighs 50 pounds per foot. The plates have the exact same moment of inertia (so they will have the exact same deflection), but they weigh 77 pounds per foot.
If you wanted to take out the current beam, I would recommend installing a properly sized I beam with a detail to allow joist hangers into the side.
That would actually make the total weight of the beam drop to 40 pounds per foot, instead of 100 pounds per foot for the 12" channels or 150 pounds per foot for the plates.