ARCHitecture

10/08/2026

📐 Calculation of Quantities – RCC Footing Quantity Take-Off

Accurate quantity estimation is one of the most important steps in any construction project. This RCC footing quantity take-off example demonstrates how to calculate concrete volume, dry volume, and the required quantities of cement, sand, and coarse aggregate for multiple footings.

Key Details:

✅ Footing Size: 1.30 m × 1.30 m × 0.30 m

✅ Volume of One Footing: 0.507 m³

✅ Total Wet Concrete (10 Footings): 5.07 m³

✅ Dry Volume (Factor 1.54): 7.81 m³

✅ Concrete Mix Ratio: 1 : 1.5 : 3 (Cement : Sand : Aggregate)

✅ Cement Required: 41 Bags (≈2050 kg)

✅ Sand Required: 2.13 m³ (≈3408 kg)

✅ Coarse Aggregate Required: 4.26 m³ (≈6816 kg)

Important Notes:

Always verify footing dimensions as per structural drawings.

Dry volume factor of 1.54 is commonly used for nominal concrete mixes.

Add 2–3% extra for wastage during material planning.

Actual quantities may vary depending on site conditions and project specifications.

Follow Cement and Concrete

10/08/2026

🏟️ Stadium Seats – Design Details

Stadium seating must be designed for structural safety, comfortable viewing, safe circulation, accessibility, and proper crowd movement. The dimensions shown are typical educational values and must be verified against the applicable local building, fire, accessibility, and stadium standards before construction.

Key details:

Typical riser height: 400 mm

Typical row spacing / tread depth: 800 mm

Minimum aisle width: 1200 mm

Seat pan height: approximately 430 mm

Seat depth: approximately 430 mm

Backrest height: approximately 350 mm

Handrail height: approximately 1100 mm

Maximum handrail post spacing: 1200 mm

Handrail: Ø50 mm stainless steel or approved equivalent

Intermediate rail: Ø25 mm

Seat: UV-resistant blow-molded plastic

Support: MS/approved metal bracket, securely bolted to the concrete step

Concrete: C25/30 minimum, subject to structural design

Handrail base plate: 200 × 200 × 10 mm

Anchorage: chemical anchors sized and designed for the required loads

Provide accessible seating and compliant routes where required.

⚠️ Important: These are illustrative design dimensions, not a construction specification. Final riser/tread geometry, structural reinforcement, handrail loads, anchorage, egress, sightlines, and accessibility must be checked by a qualified engineer against the applicable code.

Follow CIVIL Tech Time

21/04/2026