Picture Wire Length Calculator
Calculate the exact wire length to cut for your picture frame, including D-ring placement, sag, and wrapping allowance.
Back of Frame
How to Use This Calculator
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1
Enter frame dimensions
Input the width and height of your frame. These determine the D-ring positions and wire span.
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2
Set D-ring position
Adjust where the D-rings sit on the frame back. The default is 1/3 from the top, which suits most frames.
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3
Choose wire sag
Set how much droop you want in the wire. 25mm is standard for most frames.
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4
Add weight (optional)
Enter the frame weight for a wire gauge recommendation. Heavier frames need thicker wire.
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5
Cut your wire
Use the total length shown, including wrapping allowance. Thread through D-rings and secure tightly.
Frequently Asked Questions
How much sag should picture wire have?
Standard sag is 20-30mm. Too little makes hanging difficult because the wire is too taut to hook easily. Too much sag lets the wire show above the frame top when hung. A sag of around 25mm works well for most frames.
Where should D-rings be placed?
Standard placement is 1/3 from the top of the frame. This provides a good balance between stability and keeping the frame flush against the wall. Lower placement increases stability but puts more tension on the wire, requiring stronger gauge wire.
What type of wire should I use?
Braided stainless steel wire is most common. Use heavier gauge for heavier frames. For frames over 23kg, consider French cleats or security hangers instead of wire, as wire alone may not provide enough support.