I have a window that needs four Series 145 Coil Balance.
The window weighs 8lb 14 oz. Do I need 2 or 3lb coils?
I have the Double Side Load Carriers already.
Coil Balance weight

Quick Learner from Los Angeles, CA
Nov 26, 2024 5:44 pm
3 user uploaded images
2 Replies

Jasmine from SWISCO
Nov 27, 2024 10:05 am


Thanks for posting! Since the window weighs between 8 and 9lbs, I would suggest using the S145-2 Balance Spring to complete your assembly.
A 3lb coil would be tensioned for 12lbs of weight, which would be too strong for your sash.
Please feel free to reach out with any questions.
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