One Step Chase Cover

$0.51 sq. in.

For use on framed chases and masonry chimneys. 16oz Bright Copper. 20oz Bright Copper, 16oz lead coated copper, and 16oz Freedom Gray Copper are available.

Covers are diagonally creased for strength.

Enter the desired LENGTH & WIDTH. Enter Fractions as Decimals. Please measure all four sides, since some chimneys/chases are not perfectly square or rectangular.

Standard Side Flange Height is 2 Inches.  Order a Taller Side Flange Height Here. 

Bottom Edge of the Side Flange is Hemmed. Add a Drip Kick on the Side Flange Here.

Locate the hole(s) desired and enter that information in the box provided. Square and rectangular openings are also available.

Select Flue Hole(s) Diameter and Height Here.

Shipped fully assembled. Tools needed: Drill, Phillips screwdriver, measuring tape, and a caulk gun. The top is removable for flue cleaning.

Free Lower 48 State Shipping.

Total Area (sq. in.)
Product Price

Additional information


16oz Bright Copper, 20oz Bright Copper, 16oz Lead Coated Copper, 16oz Freedom Gray Copper