Now Includes The New CAN/CSA F280-12! 



Wrightsoft is pleased to offer Right-F280™, the industry's premier residential load calculator for Canada that uses CAN/CSA F280-12 as calculation method. Right-F280™ is F280-12 on a screen and quickly enables you to meet code requirements.

Bottom Line.

Right-F280 is the easiest to learn and easiest to use F280-12 load calculation tool.

Right-F280 HRAI Load Worksheet
The Right-F280 worksheet is a computerized version of F280-12 load method.
Use the libraries to select your building materials and rapidly calculate your load!

More Right-F280 Information

As part of Right-Suite® Universal, Right-F280 enables a new level of productivity. Your loads are automatically Hotlinked to all your other purchased Right-Suite Universal modules, including Right-Draw®, Right-Duct™, and Wrightsoft’s other design and sales modules.

Hotlink Technology™ means that your designs, sales proposals, and operating cost analysis require little additional input to complete and any changes you make to your load or design instantly updates every other module of the program. Hotlink means that your complete project design can be done in only a little more time than it takes to do a load!

  • Easy to learn and easy to use.
  • Hotlink Technology automatically recalculates your load and design based on changes–at blazing speed!
  • All F280-12 Tables, including mobile homes.
  • Materials library including custom surfaces for unusual materials.
  • Whole house block load calculations or detailed room-by-room BTU’s and CFM’s.
  • Zoning is easy! Multizone with a single central VAV or multiple pieces of equipment.
  • Preloaded ARI/GAMA electronic equipment directory ensures accurate technical data and sizing.
  • Handles hydronics easily! Use hi & low density baseboards.
  • Expert assistant reviews your data for accuracy and compliance and alerts you to potential problems or errors.
  • Detailed pie charts give the breakdown for heating and cooling loads.
  • Both design and sales-oriented reports.
  • Add on Right-ProposalTM for fully customized proposals. These proposals can fill out automatically based on your calculation!
  • Simple, detailed, and blower door infiltration calculations.


For over ten years, Norm Belanger has been using Wrightsoft to calculate his heating and cooling loads. Overall, he feels that it has helped him tremendously and he can provide a service to his customers by installing properly sized systems.

"If more contractors would use load software on every job, it would help our industry."
–Norm Belanger