Sizing tools for MEP engineers
Accurate duct and pipe calculations for commercial design work, grounded in published engineering standards.
Tools
Duct Sizer
Round, rectangular & flat oval sizing using the ASHRAE equal friction method. Includes velocity and pressure drop validation.
ASHRAE Ch. 21
Pipe Sizer
Hydronic pipe sizing with system type, glycol correction, and temperature corrections per ASHRAE Chapter 22.
ASHRAE Ch. 22
Hydronic Head Loss
Total Dynamic Head (TDH) for closed hydronic loops. Darcy-Weisbach pipe friction, K-factor fittings, velocity-interpolated LR ell data, and Crane TP-410 for large pipe sizes.
ASHRAE Ch. 22 + Crane TP-410
Domestic Water Pipe Sizer
Size domestic cold and hot water piping using fixture units, velocity limits, and pressure budget per IPC / UPC.
IPC / UPC 2021
Water Service Sizer
Size building water service and meter from fixture counts per IPC / UPC and AWWA M22.
IPC / UPC / AWWA M22