Skip to content
English
Sign in
Go to endtoendit.com
  • There are no suggestions because the search field is empty.

Calculating Sash Travel

For cord hung sash windows, learn how restricted sash travel is calculated in integrate.

 

Key Points: Sash Travel Calculations

 Tolerance = 50
 
1. Maximum sash travel
MaxSashTravel = OverallSashHeight - SashHeight
 
2. Maximum lead travel
MaxLeadTravel = OverallSashHeight - 150 - Tolerance
 
3. Lead height
LeadHeight = SashWeight * (LeadHeight  Per lb / 2)
 
4. Calculated sash travel
CalculatedSashTravel = MaxLeadTravel - LeadHeight
 
5. Percentage opening
Opening % = 100 * (CalculatedSashTravel / MaxSashTravel)
 
 
Lead Height Per Lb Lead Bar Sash Thickness
44.7 1 1/4" ... - 38mm
29.7 1 1/2" 39mm - 44mm
22.4 1 1/3" 45mm - 50mm
16.1 2" 51mm - ...