Approved Software

Only ACCA-approved software complies with our design standards and meets building code requirements! If software is not listed on this page, then it is not ACCA-approved, and it does not produce results in compliance with our rigorous standards.

Especially in terms of Manual J® residential load calculation, make sure that you only use ACCA-approved software in order to ensure compliance with building codes.

Manual J®, Manual D®, and Manual N® are all federally-registered trademarks of ACCA. All rights reserved. See our legal policies page.


Powered by ACCA Manual J - Full Residential Load Calculation 

(Supports Block LoadTM, Room-by-Room LoadTM, Zone-by-ZoneTM and Adequate Exposure DiversityTM or AEDTM Calculations)

Wrightsoft Right-J8 Windows
Elite RHVAC Windows
Adtek Acculoads Windows
Florida Solar Energy Center's EnergyGauge Windows
Carmelsoft HVAC ResLoad-J iPad
Avenir MJ8 Editions of HeatCAD and LoopCAD Windows
Cool Calc Manual J Browser

Manual J Block Load Compliant - Limited to Block Load Only

Wrightsoft Right-J Mobile Browser
CalcuNow MJ8-Calc Browser

Powered by ACCA Manual D - Residential Duct Design

Wrightsoft Right-D Windows
Elite Ductsize Windows
Adtek Accuduct Windows

Powered by ACCA Manual D - Excludes Manual ZR ComplianceTM and Panned Airway ComplianceTM

Florida Solar Energy Center's EnergyGauge Windows

become an acca member

And Get Member Exclusives

learn more

PLUS It's Risk-Free!

Corporate Partners