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Square Rock-Flex Stainless Steel Chimney Liner Conversion Chart

This chart is designed to assist you in selecting a square shaped chimney liner. The top row shows the original round liner dimensions; the bottom rows shows the dimensions of the liner after it is squarized. You can also try our Liner Shape Calculator.

Please give us a call at 1-866-708-2446 to confirm your dimensions before placing your order.

Square Chimney Liner Conversion Chart

Round to Square Liner Dimensions
Diameter 5" 5.5" 6" 6.5" 7" 7.5" 8" 9" 10" 11" 12" 14" 16"
Squarized 4.75"
x
4.75"
5.25"
x
5.25"
5.5"
x
5.5"
6"
x
6"
6.5"
x
6.5"
6.75"
x
6.75"
7.5"
x
7.5"
8.25"
x
8.25"
9"
x
9"
9.75"
x
9.75"
10.5"
x
10.5"
12"
x
12"
14"
x
14"