Window Channel Balance

Question

CWS Windows-Single Hung-need to know if you have them in stock and the part numbers so we can order them. Thank you.

30 inches 29 9 BSI-8 Pieces

28 inches 27 5 BSI-14 Pieces

Please advise.

User submitted photos of a window balance.

Paul · Accepted Answer

Most CWS windows use Series 385 side load balances, with the 19-005 top and 15-004 (1-3/32" depth) bottom balance fittings attached. Please compare those attachments. For your 28" balance, use S385-28. The spring weight for "27-5" is "2750," for a sash weight range of 26 to 30 pounds. The 30" balance would be S385-30, and the spring weight "29-9" would be "2965" for a sash weight of 35 to 39 pounds. I hope that helps!