StackDesign is free during the open beta
Plan a Systainer wall, size every cabinet to the boxes you actually own, and pull the cut list. All of it is free while the beta runs.
What is actually free
The planner, the wall fit, the cut list and the sheet layouts. Nothing is parked behind a paid tier at the moment.
Signing up still runs through our billing system on a plan priced at zero, so nothing is charged. The reason to do it that way rather than skipping billing is practical: you get a real account, and a bank you planned last month is still there when you come back to build it.
How long it lasts
No end date has been set. The paid plans are paused rather than deleted and the prices on the pricing page are the ones that come back, so when the beta ends it is a switch turned back on rather than a surprise. You will get an email before it happens, and it will be posted here.
Where to start
Tell the planner what wall you have and which boxes you own, and it sizes the cabinets around them instead of making you work backwards from a standard width.
If you want the numbers first, the guides start with the real Systainer3 dimensions and go from there.
Free while the beta runs
Open the planner
Pick your boxes, set your wall, and walk away with a cut list.