Chimney Liner Size Calculator and Selection Guide

This handy guide is provided to assist you in choosing the right size and type of chimney liner for your home. If you need to convert round liner dimensions to oval or rectangular, try our Liner Shape Calculator. For ordering multiple sections of liner/pipe, try our Chimney Liner and Flue Pipe Length Calculator.

Please call us if you have any questions or need further assistance.

Minimum: 3 inches. Maximum 16 inches.

Minimum: 3 inches. Maximum 16 inches.

Product Recommendations

To replace a in. diameter round liner ( sq. in. cross section):

For flue with inside dimensions: in. x in. (effective dimensions: in. x in.):

Try one of the following options:

Round liner sizes:

Sorry, no matches.

  • in. ( sq. in. cross section)

View Round Liner Details

Rectangle liner sizes:

Sorry, no matches.

  • in. x in. ( sq. in. cross section)

View Rectangle Liner Details

Square liner sizes:

Sorry, no matches.

  • in. x in. ( sq. in. cross section)

View Square Liner Details

Oval liner sizes:

Sorry, no matches.

  • in. x in. ( sq. in. cross section)

View Oval Liner Details