Basement & Substructure Calculators
Basement works, retaining structures and below-ground construction.
Civil & Structural Live Tool
Basement Works Calculator
Basement structure takeoff: base slab, retaining walls, basement columns, grade beams, ramp decks, tanking, sumps and reinforcement — from the building footprint and perimeter.
Base Slab = Footprint × Thickness × Levels; Retaining Walls = Perimeter × Depth × Thickness × Levels; Waterproofing = Slab + Wall Faces; Rebar = Concrete × kg/m³ Construction & QS Live Tool
Waterproofing Takeoff Calculator
Measured-area takeoff for waterproofable surfaces, with declared layer counts. Material quantity stays unresolved until a product coverage rate is supplied.
A = L x W per surface ; area to treat = total measured area x declared layers ; units = area / user-entered coverage