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Superior Clay Corporation
Superior Clay Flue Liners & Flue Rings

Flue Sizes Typically Used in Fireplaces

Standard Two Foot Flues

Nominal Size
(In.)

Eff. Net Area
(Sq. In.)

Weight
(lbs.)

No. Per Pallet
8-1/2 x 8-1/2 49 36 72
8-1/2 x 13 76 50 60
13 x 13 127 66 40
13 x 18 173 99 24
18 x 18

233 141 18

Modular Two Foot Flues

Nominal Size
(In.)

Eff. Net Area
(Sq. In.)

Weight
(lbs.)

No. Per Pallet
8 x 8 42 30 72
8 x 12 67 41 60
12 x 12 102 52 40
12 x 16 131 82 32
16 x 16 181 109 24
16 x 20 222 142 18
20 x 20 298 202 12
20 x 24 335 241 12
24 x 24 431 275 12

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