Check the spline chart to help you determine the size spline you need. Do not measure the spline, measure the width of the cleaned out groove in your chair. If you are in doubt about sizes, send a sample from the old chair and we will match it.

Actual Width of Groove  Size of Spline Needed
1/8″  6.5 
 5/32″  7
 11/64″  7.5
 3/16″  8
 13/64″  8.5
 7/32″  9
 1/4″ 9.5
 9/32″  10
 11/32″  11
 3/8″  12

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