01
Mechanical services
Pipe Sizer
An interactive calculator for sizing pipework using design flow, velocity and pressure-drop criteria.
Open Pipe SizerAllsop Consult resources
Engineering tools
Practical calculators developed to support building-services design.
02
Ventilation services
Duct Sizer
An interactive calculator for sizing ductwork using airflow, velocity and pressure-drop criteria.
Open Duct Sizer03
Thermal services
Pipe Heat Loss
Estimate heat loss or heat gain per metre for insulated pipework using pipe, insulation and temperature selections.
Open Pipe Heat Loss