Takeoff

• Weight comes from the IFC itself where the exporter wrote it (Tekla Weight, IFC NetWeight): IFC. Otherwise it is estimated from the solid volume × 7850 kg/m³: geometry.
• Length likewise: the exporter’s length, or the longest side of the member’s own bounding box.
• Paint area is the surface of each part: all faces for open sections and plates, the outside only for hollow sections (box and tube). It is the exporter’s surface area where written, otherwise measured from the 3D geometry (round tubes read about 1% low).
• Bolts are grouped by diameter × length, grade, standard and site/shop assembly. Welds that some exporters write as fasteners are recognised and left out of the bolt count.
• Steel is recognised from the material name (S235, S355, Q235, A36, “steel”…). Members without a material are counted as steel; concrete and other materials are listed separately.
• Analyze this model opens the steel structure in the free 3D Frame Analysis: beams, columns and members on their axes, joined where they touch, ready for loads. The file is handed over inside your browser; it is still not uploaded.
• Click a row to highlight those members in 3D; click a member in 3D to see its data. Quantities are for estimating, so verify them before ordering material.
• Viewer tools: Plan, Front and Side are true orthographic views (drag to pan, scroll to zoom). Section cuts the model horizontally or vertically with a slider, or shows one floor at a time from the levels in the IFC. Measure gives the distance and ΔX / ΔY / ΔZ between two points and snaps to member corners. Grid shows the grid lines and their marks when the IFC contains a grid (IfcGrid); with a floor selected the grid sits at that level. Isolate and Hide work on the selection; Full screen for site tablets.
• Missing something? Suggest a feature or a new tool.