What Stamp for my Series 385 Channel balance

Question

My window weight 28 LB, what is option number it right for window weight?.
The channel balance it 30 inch long.
Thank you.

Paul · Accepted Answer

Did you see the chart of options we have posted on the S385-30 store page? We show that a stamp of 2940 can support a window sash weight of 23 through 28 pounds. Would that work? If your sash weight goes a little over 28 pounds, then you may want to go with the 2950 instead, which can support 28 through 32 pounds.