No cutting plan can use less stock for these cuts. How we know.
Buy the fewest bars, waste the least material, empty the offcut rack, spend the fewest dollars, spare the bloke on the saw, or cut a whole bundle in one setup. Same job, different answers. Which to pick.
Before you see a plan, it's checked cut by cut: nothing missing, everything fits, blade width included.
When you see the green tick, no plan on earth uses less stock for your cuts. See the jobs that prove it.
The same solver, set up for what you are actually cutting. Each page carries the stock lengths that material is sold in and the kerf that suits it.
Read what the 1D cutting stock problem is and how an exact solver beats a first-fit guess, see how the optimizer works, or check how it compares with the other cut list optimizers.