The top table lists available materials with their unit weights (kN/m³) or area loads (kN/m²). Click a row to select it — a red dot appears to confirm your selection.

• Export txt — saves the current library to a tab-delimited .txt file.
• Import txt — loads materials from a tab-delimited .txt file and appends them to the existing list. Expected columns: Material · kN/m³ · kN/m² (header row is optional).
• Clear all — removes all materials from both the library and the load composition table.

Build up the load by adding materials from the library:

• Add — adds the selected material as a new row.
• Enter L (length), W (width) and H (height) in metres. For area loads (kN/m²) the height field is disabled.
• The Weight [kN] is calculated automatically:
  — volumetric: kN/m³ × L × W × H
  — area load: kN/m² × L × W
• Remove Selected — click a row to select it, then press this button to delete it.
• Clear All — empties the load composition table.

The results update automatically as you enter data:

• Total Load [kN] — sum of all weights in the load composition.
• Line Load [kN/m] — total load divided by the beam span. Enter the span in metres to activate.
• Load per m² [kN/m²] — total load divided by the tributary width. Enter the width in metres to activate.

Press PDF to open the browser print dialog. Choose Save as PDF as the destination. Only the Load Composition and Results sections are included — the Material Library and buttons are hidden.