How much steel required for 100 square feet lintel?

The amount of steel required for a lintel typically depends on its design, load-bearing requirements, and local building codes. Generally, for a standard lintel, you might use around 0.1 to 0.15 kg of steel per square foot. Therefore, for a 100 square foot lintel, you would need approximately 10 to 15 kg of steel. It's important to consult with a structural engineer for precise calculations based on specific conditions.