Originally Posted by Zephod_beeblebrox2
The beams supporting the floor. That's a definite no no
That would not stop me.
I would cut what you need to, add some support back to the side of the member you cut.
My shed has three ribs that have completely failed, broken and no longer connected to the sheet metal floor. It's still more than strong enough.
Even if you just cut that one and don't add any other support, you will still be fine.