How to Calculate Scaffolding Needs for Your Slab

A step-by-step technical guide for engineers and project managers to estimate shoring quantities accurately. [cite: 23]

Accurate scaffolding calculation is crucial for both project safety and cost control. [cite: 24]

Step 1: Determine the Slab Load

The total load includes the "Dead Load" (weight of concrete and formwork) and "Live Load". [cite: 25]

Concrete Weight: ~24 kN/m³ [cite: 26]
Total Design Load: ~7.3 kN/m² [cite: 27]

Step 2: Check Component Load Capacity

Refer to your manufacturer's data sheet. For example, an Oscaffold Adjustable Steel Prop might have a safe working load (SWL) of 20 kN at a 3-meter extension. [cite: 28]

Step 3: Calculate Spacing (The Grid)

Maximum Area per Prop = Prop Capacity / Total Design Load [cite: 29]

Using our example: 20 kN / 7.3 kN/m² = 2.74 m² per prop. [cite: 29]

Let Us Do The Math For You

Send us your project drawings, and Oscaffold's engineering team will provide a full BOM and load calculation report. [cite: 32]