Balance weight threshold compared to measurements?

A handy person from California says:
I inquired about block and tackle balances, specifically the series 351 17". Dave suggested I measure the window to find the weight.

Does this mean you can guage the weight by the measurements? If so the window is 34 1/2" x 17 1/2". The frame is 1" thick with a single pane of 1/8". I have noting to weigh the window in the frame and I don't want to remove it from the frame.

I was able to restring the balance and get it to work. The windows are going to be replaced this Summer during an remodel. If I had to guess, the window weighs about 10 pounds. All I need is balances to last until the remodel. I hope you can help.


Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting, John.

You should take a look at our S351-17 Channel Balance. I think this will suit what you need.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at