With window sash less than 12 lbs the weight variation from counter weights to window sash weight can be a half pound.
Victorian sash window weights.
The sash weight is connected to the window by a braided cotton sash cord or a chain that runs over a pulley at the top of the frame although spring balances are sometimes used.
Sash window weights worth much at local scrappy.
Made of iron weights can be installed alone or stacked and are ideal for vintage window restoration or new period style home construction.
Upper window sash should be hung with two 8 lb.
And a lower 15 lb.
This is to ensure that the upper sash stays up and the lower sash stays down.
For window sash weighing over 12 lbs the variation should be a pound difference.
Antique vintage window sash weight approx 5 7lb ea.
When selecting weights remember although they can allow for smooth operating windows oversize weights can impede sash movement and cause the window to malfunction.
Replacement window sash weights cast iron square stackable sash weight 3 lb.
Sash should be hung with two 7 lb.
I replaced my victorian sash with upvc sash and have to say they ve been superb 15 years old now and still.
Sash weights create the proper counterbalance for each window sash allowing for smooth operating double hung windows.
Vintage window weights antique architectural salvage cast iron 7 8 lb 18 19 inch.