This is the fastest way to determine what springs you have.
HOW TO DETERMINE WIRE SIZE ON UNWOUND SPRINGS
STEP 1: CAREFULLY COUNT 20 COILS AND MEASURE TO THE NEAREST 1/16". THEN SEE THE CHART BELOW TO DETERMINE YOUR WIRE SIZE. STANDARD RESIDENTIAL WIRE SIZES ARE .207, .218, .225, .234, .243, .250, .262.
STEP 2: THE NEXT THING TO DO IS MEASURE THE LENGTH OF AN UNWOUND SPRING ***COUNTING COILS AND MEASURING WOUND SPRINGS, TO DETERMINE SPRING WIRE SIZE, WILL PROVIDE FALSE DATA***
STEP 3: DETERMINE THE INSIDE DIAMETER OF THE SPRING.(STANDARD INSIDE DIAMETERS ARE 1 3/4" AND 2")
LENGTH OF 20 COILS WIRE SIZE
4 1/8" .207
4 3/8" .218
4 1/2" .2253
4 5/8" .2343
4 7/8" .2437
5" .250
5 1/4" .262
IF YOU HAVE 1 3/4" ID SPRINGS, CONTACT US WITH WIRE SIZE AND LENGTH SO WE CAN RECOMMEND A CORRESPONDING 2" SPRING.
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