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 1-Line 2023      $485     Updated For 2023 NEC

1-Line Load Calculation Software

for Commercial and Industrial Applications

1-Line 2023 is a full function design package that will simplify the time consuming task of preparing 1-line drawings, panel schedules, and load calculations. Simply input the loads for your sub panels and the program will create a 1-line drawing.

With this program you may have up 24 panels fed from the main switchboard. Each panel may have a sub panel or transformer & sub panel.



1-Line 2023 is an Microsoft Excel template program that will run on any Windows platform. User furnished copy of Microsoft Excel 2007 or later is required.

View Input Screens
SAMPLE DOWNLOADS (Excel xls format)


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   (No Hard Copy)
   (Download + CD Hard Copy)
Hard Copy
   (CD Hard Copy no Download)

Non Cart Orders
If you prefer not to use the shopping cart you may place your order by calling (509) 844-1914 or buy using the order forms below.
Excel Order Form
PDF Order Form
Upgrades   $275
If you are a registered user of a previous version of Panel Software or 1-Line Software you may place your upgrade order by calling (509) 844-1914 or buy using the order forms below.
Excel Upgrade Order Form
PDF Upgrade Order Form





Sample 1-Line Sample 1-Line Sample 1-Line    
  With Meters With Meters  

Main Switchboard Load Summary Panel Calcs Panel Schedule
Calcs Printout   Printout
Subpanel Circuit User's Manual