Window Balances by Unit Width | OEM Replacement Parts
7 subcategories — 18 SKUs
Window balances by unit width organize replacement balance assemblies across standard double-hung frame dimensions. Contractors and glaziers stock these by frame height to match unit specs during sash repair and replacement work.
36" Unit Height
40" Unit Height
48" Unit Height
54" Unit Height
60" Unit Height
66" Unit Height
72" Unit Height
Match Balance to Unit Height for Proper Sash Operation
Unit-width balances are sized to compensate sash weight across standard frame heights, from 36" through 72". Correct height selection is critical—balance strength and stroke length must align with the unit dimension to maintain sash control and prevent binding. Installation requires identifying the existing unit height and selecting the matching balance assembly.
Identify Your Unit Height Before Selection
Unit height measures the full frame opening vertically, not sash height. Available stock spans 36", 40", 48", 54", 60", 66", and 72" unit heights. Verify the dimension on the frame itself or original specification sheet. Incorrect height selection results in weak sash support or excessive friction.
Balance Stroke Length and Sash Weight Compensation
Each unit height carries a specific balance stroke and tension rating designed for that frame dimension. Double-hung units typically require paired balances; confirm quantity needed before ordering. Cross-reference your unit height with the balance part number to ensure OEM compatibility and sash performance.
- →Constant Force Coil Window Balances
- →Window Balances by Glass Width
- →Single & Double Hung Windows Parts
Trade Volume Ordering and Technical Support
All About Windows supplies balances in bulk for contractor and dealer accounts. Confirm unit height and balance type with your customer's original hardware or frame specification before bulk ordering. Technical support available to verify compatibility across multiple frame brands and vintage installations.