Material Editor & Library
In the Material tab (left bar) you maintain the project's material catalog. Every carcass, front, back-panel, bottom, and plinth material is chosen from this catalog. Material drives thickness, appearance, grain logic, and cost.

A material card
One card per material, with:
- Name: display name (e.g. "White chipboard 19 mm").
- Thickness (1–80 mm): the sheet thickness. When a material is chosen as the carcass material, this thickness automatically sets the carcass's material thickness.
- Sheet W / Sheet H (sheet length × width, mm): the raw sheet format for the cut list. Common German formats are e.g. 2800 × 2070 mm.
- Price €/m²: optional, for the cost calculation (material/cost list and estimated sheet cost).
- Color: hex color for the 3D view.
- Grain: does the material have a grain direction?
- On: parts of this material keep their grain direction when nesting (they are not rotated) and get grain stripes in the plan. Needed for decors/solid wood, at some cost to sheet yield.
- Off: parts may be freely rotated → better yield (correct for homogeneous sheets such as white chipboard/MDF).
Actions per card: To library (saves this material into the cross-project library) and Remove (the last material cannot be removed — a project needs at least one).
You extend the catalog with + Material.
Material library

Via Library you open a cross-project collection of saved materials — so you don't have to recreate your favorite sheets in every project.
Save all: places all project materials into the library.
Export / Import: backs up the library as a file or loads it.
Per library entry: Add to project (plus) or Remove from library (trash). Materials already in the project are marked as "in project".
Pros & cons: maintain once, use everywhere — consistent materials, prices, and formats across projects. The library lives in the browser; with export/import you can take it to another computer.
Next: New-Carcass Wizard