Help selecting a boat design

[OneWayTraffic]

If you do it in CAD remember that although the plans are originally designed in high precision CAD, they are rounded to 3mm or 1/8th. Don't expect everything to fully line up perfectly, but a 5mm gap is all good.

[pee wee]

One more thing to be aware of, the study plans and b.o.m. are usually for a bare bones boat, often tiller steer. That means any side decks or console is not included. That's not universally the case, but a careful read of the study plans often will reveal what the basic bill of materials includes. Many builders decide it's best to order another sheet of plywood beyond what is calculated, that's especially prudent if you have to pay shipping.

It may not be obvious right now, but if you make a change like raising the sole 1", that means your stringers need to be taller (you could cap the original height with lumber to raise it) and your deck will be both wider and longer. Typically the designer makes the most economic use of a given number of sheets of plywood, so a change or addition to the basics will probably run into extra plywood.

[LarryA]

One engineer to another, don't waste your time putting the boat in CAD. Spend your time building it. The boats are designed in cad which the export to plans. no need to add errors by doing it again.

[jacquesmm]

And please read this about the BOM:
https://forums.bateau2.com/viewtopic.php?f=8&t=51737

As the designer, I must make assumptions to calculate a BOM and my assumptions are always based on a simple standard model.
For the plywood, my nesting drawings are very tight and as somebody else wrote, a 1" change somewhere may result in one or two extra sheets of plywood.