how to find out what is the balance weight required? My stamp is 29DS 38
balance weight
Home Owner from Fort Myers
May 17, 2025 5:49 pm
1 user uploaded image
8 Replies
Bob from SWISCO
May 18, 2025 1:30 pm
Thanks for posting. Good question, as that stamp is certainly a bit unusual. Most likely the weight is the '38' engraved after the 'DS'. A 38 pound window sash means you could choose a stamp option of 2965, which designates a channel balance that can support a window sash in the weight range of 35 through 39 pounds. You can always weigh the window sash to confirm it falls in that range. Let me know if you have other questions.
Home Owner from Fort Myers
May 18, 2025 1:53 pm
Is it ok to use higher wight balance or you have to use what is recommended?
Bob from SWISCO
May 18, 2025 2:42 pm
No, you want to stay within the recommended range. A stronger stamp option will make the window very difficult to close and keep closed--the balances will force the sash to keep 'drifting' upward. Conversely, too light a stamp option will make the sash difficult to open and keep open. You want it to be within the correct range.
Home Owner from Fort Myers
May 19, 2025 9:28 am
Thank you for your help. Can you send me a video how to replace the balance. I'm good at things but I would like to make sure I'm doing it right. Thank you.
Bob from SWISCO
May 19, 2025 3:36 pm
Sure, see the video below. Let me know if you have further questions.
Home Owner from Fort Myers
May 19, 2025 3:46 pm
Thank you.
Bob from SWISCO
May 20, 2025 3:25 pm
My pleasure. Again, let us know if you have further questions, and thanks again for contacting us.
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