▦Cost sheets
A product is a cost sheet plus pricing settings. Costs come in three tables: materials, labor and additional items.
- Materials come from your inventory at their current unit cost; type a name that does not exist and it is created on the spot.
- Buy in one unit, use in another: kilograms to grams, board feet to inches — units of a family convert exactly, and lumber lines get a board-foot calculator.
- Labor is minutes at an hourly rate; a play button times an operation and adds the elapsed minutes.
- Waste per line (lumber loses 15–30 %), batch yield when one sheet makes several units, overhead per labor hour or as a percentage.
- Freeze a unit cost on one line (the lock) while the rest of the sheet follows your inventory.










































