A useful build estimate keeps every grade separate and counts full building-block equivalents. That makes the shopping list reusable for upkeep planning.
Sketch the shell first
Count the blocks in the route you actually plan to build, including the roof and foundations.
Assign the final grade
Enter each block under the grade it will use when the base is finished, not the temporary twig stage.
Save before changing tools
The calculator stores the active profile in this browser. The same counts appear in the upkeep calculator.