The Speed-Sheets are Excel spreadsheet you can use in conjunction with the abridged edition of Manual J (residential load calculation) or 5th edition of Manual N (light commercial load calculation) to ensure proper system design. Speed-Sheets are available for free!

Speed-Sheets require Microsoft Excel. (Excel is a trademark of Microsoft Corporation.)

Download the Speed-Sheet for Manual J here.

Download the Speed-Sheet for Manual N here.

Training Video for Manual J Speed-Sheet
An online video offers you step-by-step training in the use of the Speed-Sheet. Watch it online here. (Requires Adobe Flash; this is a large file, please give it time to download and begin.)