Septic Tank size and Soak Pit CAD File Download (DWG) + Size Calculator (India Standard)
📌 Introduction Designing a proper sanitation system requires accurate septic tank size calculation…
Solar Water Heater Calculator (Capacity Calculation + Excel & CAD Free Download)
Use our solar water heater calculator to calculate tank size and system capacity. Download free…
Basement Ventilation Calculator
Basement / Parking Ventilation Calculator Designing an effective ventilation system for basement…
Car Parking Ventilation Calculator (NFPA)
Car Parking Ventilation + Jet Fan + CO Sensor Estimator (NFPA / ASHRAE)
This tool gives preliminary estimation of ventilation air, number of jet fans and CO sensors for enclosed car parks based on NFPA / ASHRAE / NBC planning practice.
• 1 CO sensor ≈ 400 m² coverage
• 1 Jet fan ≈ 350 m² coverage
• Final quantities depend on CFD, layout & consultant design.
Ventilation Design for Basement Parking (System, Layout, Calculation & PDF)
Learn ventilation design for basement parking with layout, calculations, fans, and system design.…
Pipe Size Calculation Formula (Excel Sheet + Calculator + Flow Rate Method)
Learn pipe size calculation formula with flow rate, velocity, and pressure. Download free Excel…
Fire Pump calculation– Fire Fighting Pump Capacity Calculation (NFPA & NBC 2016)
Fire Pump Calculator A fire pump calculator helps engineers determine the required pump capacity…
HVAC Duct Size Calculator – Free Duct Sizing Tool (CFM, Velocity & Friction)
An HVAC duct size calculator helps engineers determine the correct duct dimensions required to…








