Structural question....A-145.

[Remsbecher]

My question pertains to the aft bulkhead at the rear of the cabin. I have cut it out on both sides to make more room for the side berths. To what degree do I need worry about the boat structure, (having cut away the base of the bulkhead)? The ends, port and starboard, are left attached to the hull. I saw this layout on an Alberg 35 and I liked it. Or is the hull so beefy that there is no problem or at least not major?
Thanks. Arthur.