📏 Input Parameters

Project Settings

First Flight

Second Flight

Landing & Additional

📊 Formwork Results

First Flight - Bottom Area
Actual sloped soffit formwork area (hypotenuse × width)
Formula: √(Length² + Rise²) × Width = √(2.80² + 1.80²) × 1.2
0.00 m²
First Flight - Step Risers
Vertical face formwork for all step risers
Formula: Steps × Rise × Width = 10 × 0.180 × 1.2
0.00 m²
First Flight - Side Forms
Sloped edge both sides + stepped profile area
Formula: (Hypotenuse×Thickness×2) + (Rise×Tread×Steps) = (3.33×0.15×2) + (0.18×0.28×10)
0.00 m²
Second Flight - Bottom Area
Actual sloped soffit formwork area (hypotenuse × width)
Formula: √(Length² + Rise²) × Width = √(2.24² + 1.44²) × 1.2
0.00 m²
Second Flight - Step Risers
Vertical face formwork for all step risers
Formula: Steps × Rise × Width = 8 × 0.180 × 1.2
0.00 m²
Second Flight - Side Forms
Sloped edge both sides + stepped profile area
Formula: (Hypotenuse×Thickness×2) + (Rise×Tread×Steps) = (2.67×0.15×2) + (0.18×0.28×8)
0.00 m²
Landing - Bottom Area
Horizontal soffit formwork for landing platform
Formula: Length × Width = 1.5 × 1.2
0.00 m²
Landing - Edge Forms
Perimeter edge formwork (perimeter × slab thickness)
Formula: 2 × (Length + Width) × Thickness = 2 × (1.5 + 1.2) × 0.15
0.00 m²
Support Beam Forms
Vertical formwork for supporting beams
Formula: Perimeter × Beam Height = 5.4 × 0.30
0.00 m²
Total Formwork Area (All Floors)
0.00 m²

🏗️ Concrete Volumes

First Flight Volume
Individual step volumes + base slab volume
Formula: (Steps×T×W×R) + (L×W×Slab) = (10×0.280×1.2×0.180) + (2.80×1.2×0.15)
0.00 m³
Second Flight Volume
Individual step volumes + base slab volume
Formula: (Steps×T×W×R) + (L×W×Slab) = (8×0.280×1.2×0.180) + (2.24×1.2×0.15)
0.00 m³
Landing Volume
Horizontal slab concrete volume
Formula: Length × Width × Thickness = 1.5 × 1.2 × 0.15
0.00 m³
Total Concrete Volume (All Floors)
0.00 m³

📝 Notes

Multiple Floors: Total calculations include specified number of floors with stairs
Same Flights: Check to automatically copy Flight 1 dimensions to Flight 2
Bottom Area: Uses hypotenuse (actual sloped surface) × width
Side Forms: Sloped main × thickness + step profile area × number of steps × 2 sides
Concrete Volume: Step volumes + base slab (Steps×T×W×R + L×W×Slab)
💡 Tip: Add 5-10% waste factor for both formwork & concrete