Square Roof Curbs (Non insulated) - 12 inch Tall

AVP's aluminum square roof curbs provide a platform for mounting roof vents and exhaust fans on flat roofs. These 12" curbs come in widths to fit vents from 3" to 48". They are non-flammable, rust-free, and compatible with EPDM, PVC, and TPO roofing systems. They satisfy roofing manufacturer warranty requirements and can also serve as a hatch for attic maintenance.… Read More

Grid View

Outer Width	Inside Opening	For Vent or Fan size:	Model 12" High

6"	5"	3"	SRC-3-H12
7"	6"	4"	SRC-4-H12
8"	7"	5"	SRC-5-H12
9"	8"	6"	SRC-6-H12
10"	9"	7"	SRC-7-H12
11"	10"	8"	SRC-8-H12
12"	11"	9"	SRC-9-H12
13"	12"	10"	SRC-10-H12

Outer Width	Inside Opening	For Vent or Fan size:	Model 12" High
15"	13"	12"	SRC-12-H12
17"	15"	14"	SRC-14-H12
19"	17"	16"	SRC-16-H12
21"	19"	18"	SRC-18-H12
23"	21"	20"	SRC-20-H12
27"	25"	24"	SRC-24-H12
33"	31"	30"	SRC-30-H12
39"	37"	36"	SRC-36-H12
45"	43"	42"	SRC-42-H12
51"	49"	48"	SRC-48-H12

18 products

For 3" Dia. Vent or Fan
- Square Roof Curb for 3" Diameter Vent
  
  Square Roof Curb for 3" Diameter Vent
  
  Model No: SRC-3-H12
  
  Fits Vent Size: 3"
  
  Opening: 5"
  
  Height 12"
  
  L x W: 6" x 6"
  
  Price:Regular price $32.00 USD
  
  Regular price Sale price $32.00 USD
  Unit price per
For 4" Dia. Vent or Fan
- Square Roof Curb for 4" Diameter Vent
  
  Square Roof Curb for 4" Diameter Vent
  
  Model No: SRC-4-H12
  
  Fits Vent Size: 4"
  
  Opening: 6"
  
  Height 12"
  
  L x W: 7" x 7"
  
  Price:Regular price $34.00 USD
  
  Regular price Sale price $34.00 USD
  Unit price per
For 5" Dia. Vent or Fan
- Square Roof Curb for 5" Diameter Vent
  
  Square Roof Curb for 5" Diameter Vent
  
  Model No: SRC-5-H12
  
  Fits Vent Size: 5"
  
  Opening: 7"
  
  Height 12"
  
  L x W: 8" x 8"
  
  Price:Regular price $38.00 USD
  
  Regular price Sale price $38.00 USD
  Unit price per
For 6" Dia. Vent or Fan
- Square Roof Curb for 6" Diameter Vent
  
  Square Roof Curb for 6" Diameter Vent
  
  Model No: SRC-6-H12
  
  Fits Vent Size: 6"
  
  Opening: 8"
  
  Height 12"
  
  L x W: 9" x 9"
  
  Price:Regular price $42.00 USD
  
  Regular price Sale price $42.00 USD
  Unit price per
For 7" Dia. Vent or Fan
- Square Roof Curb for 7" Diameter Vent
  
  Square Roof Curb for 7" Diameter Vent
  
  Model No: SRC-7-H12
  
  Fits Vent Size: 7"
  
  Opening: 9"
  
  Height 12"
  
  L x W: 10" x 10"
  
  Price:Regular price $46.00 USD
  
  Regular price Sale price $46.00 USD
  Unit price per
For 8" Dia. Vent or Fan
- Square Roof Curb for 8" Diameter Vent
  
  Square Roof Curb for 8" Diameter Vent
  
  Model No: SRC-8-H12
  
  Fits Vent Size: 8"
  
  Opening: 10"
  
  Height 12"
  
  L x W: 11" x 11"
  
  Price:Regular price $51.00 USD
  
  Regular price Sale price $51.00 USD
  Unit price per
For 9" Dia. Vent or Fan
- Square Roof Curb for 9" Diameter Vent
  
  Square Roof Curb for 9" Diameter Vent
  
  Model No: SRC-9-H12
  
  Fits Vent Size: 9"
  
  Opening: 11"
  
  Height 12"
  
  L x W: 12" x 12"
  
  Price:Regular price $56.00 USD
  
  Regular price Sale price $56.00 USD
  Unit price per
For 10" Dia. Vent or Fan
- Square Roof Curb for 10" Diameter Vent
  
  Square Roof Curb for 10" Diameter Vent
  
  Model No: SRC-10-H12
  
  Fits Vent Size: 10"
  
  Opening: 12"
  
  Height 12"
  
  L x W: 13" x 13"
  
  Price:Regular price $62.00 USD
  
  Regular price Sale price $62.00 USD
  Unit price per
For 12" Dia. Vent or Fan
- Square Roof Curb for 12" Diameter Vent
  
  Square Roof Curb for 12" Diameter Vent
  
  Model No: SRC-12-H12
  
  Fits Vent Size: 12"
  
  Opening: 13"
  
  Height 12"
  
  L x W: 15" x 15"
  
  Price:Regular price $78.00 USD
  
  Regular price Sale price $78.00 USD
  Unit price per
For 14" Dia. Vent or Fan
- Square Roof Curb for 14" Diameter Vent
  
  Square Roof Curb for 14" Diameter Vent
  
  Model No: SRC-14-H12
  
  Fits Vent Size: 14"
  
  Opening: 15"
  
  Height 12"
  
  L x W: 17" x 17"
  
  Price:Regular price $91.00 USD
  
  Regular price Sale price $91.00 USD
  Unit price per
For 16" Dia. Vent or Fan
- Square Roof Curb for 16" Diameter Vent
  
  Square Roof Curb for 16" Diameter Vent
  
  Model No: SRC-16-H12
  
  Fits Vent Size: 16"
  
  Opening: 17"
  
  Height 12"
  
  L x W: 19" x 19"
  
  Price:Regular price $104.00 USD
  
  Regular price Sale price $104.00 USD
  Unit price per
For 18" Dia. Vent or Fan
- Square Roof Curb for 18" Diameter Vent
  
  Square Roof Curb for 18" Diameter Vent
  
  Model No: SRC-18-H12
  
  Fits Vent Size: 18"
  
  Opening: 19"
  
  Height 12"
  
  L x W: 21" x 21"
  
  Price:Regular price $117.00 USD
  
  Regular price Sale price $117.00 USD
  Unit price per
For 20" Dia. Vent or Fan
- Square Roof Curb for 20" Diameter Vent
  
  Square Roof Curb for 20" Diameter Vent
  
  Model No: SRC-20-H12
  
  Fits Vent Size: 20"
  
  Opening: 21"
  
  Height 12"
  
  L x W: 23" x 23"
  
  Price:Regular price $137.00 USD
  
  Regular price Sale price $137.00 USD
  Unit price per
For 24" Dia. Vent or Fan
- Square Roof Curb for 24" Diameter Vent
  
  Square Roof Curb for 24" Diameter Vent
  
  Model No: SRC-24-H12
  
  Fits Vent Size: 24"
  
  Opening: 25"
  
  Height 12"
  
  L x W: 27" x 27"
  
  Price:Regular price $169.00 USD
  
  Regular price Sale price $169.00 USD
  Unit price per
For 30" Dia. Vent or Fan
- Square Roof Curb for 30" Diameter Vent
  
  Square Roof Curb for 30" Diameter Vent
  
  Model No: SRC-30-H12
  
  Fits Vent Size: 30"
  
  Opening: 31"
  
  Height 12"
  
  L x W: 33" x 33"
  
  Price:Regular price $202.00 USD
  
  Regular price Sale price $202.00 USD
  Unit price per
For 36" Dia. Vent or Fan
- Square Roof Curb for 36" Diameter Vent
  
  Square Roof Curb for 36" Diameter Vent
  
  Model No: SRC-36-H12
  
  Fits Vent Size: 36"
  
  Opening: 37"
  
  Height 12"
  
  L x W: 39" x 39"
  
  Price:Regular price $234.00 USD
  
  Regular price Sale price $234.00 USD
  Unit price per
For 42" Dia. Vent or Fan
- Square Roof Curb for 42" Diameter Vent
  
  Square Roof Curb for 42" Diameter Vent
  
  Model No: SRC-42-H12
  
  Fits Vent Size: 42"
  
  Opening: 43"
  
  Height 12"
  
  L x W: 45" x 45"
  
  Price:Regular price $325.00 USD
  
  Regular price Sale price $325.00 USD
  Unit price per
For 48" Dia. Vent or Fan
- Square Roof Curb for 48" Diameter Vent
  
  Square Roof Curb for 48" Diameter Vent
  
  Model No: SRC-48-H12
  
  Fits Vent Size: 48"
  
  Opening: 49"
  
  Height 12"
  
  L x W: 51" x 51"
  
  Price:Regular price $390.00 USD
  
  Regular price Sale price $390.00 USD
  Unit price per

Product Link

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SRC-3-H12

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Square Roof Curb for 3

Square Roof Curb for 3

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Square Roof Curb for 3

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Square Roof Curb for 3

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SRC-4-H12

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Square Roof Curb for 4

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Square Roof Curb for 4

Square Roof Curb for 4

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Square Roof Curb for 4

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SRC-5-H12

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Square Roof Curb for 5

Square Roof Curb for 5

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Square Roof Curb for 5

Square Roof Curb for 5

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Square Roof Curb for 5

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SRC-6-H12

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Square Roof Curb for 6

Square Roof Curb for 6

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Square Roof Curb for 6

Square Roof Curb for 6

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Square Roof Curb for 6

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SRC-7-H12

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Square Roof Curb for 7

Square Roof Curb for 7

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Square Roof Curb for 7

Square Roof Curb for 7

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Square Roof Curb for 7

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SRC-8-H12

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Square Roof Curb for 8

Square Roof Curb for 8

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Square Roof Curb for 8

Square Roof Curb for 8

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Square Roof Curb for 8

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SRC-9-H12

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Square Roof Curb for 9

Square Roof Curb for 9

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Square Roof Curb for 9

Square Roof Curb for 9

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Square Roof Curb for 9

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SRC-10-H12

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Square Roof Curb for 10

Square Roof Curb for 10

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Square Roof Curb for 10

Square Roof Curb for 10

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Square Roof Curb for 10

Product Link

SRC-12-H12

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Square Roof Curb for 12

Square Roof Curb for 12

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Square Roof Curb for 12

Square Roof Curb for 12

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Square Roof Curb for 12

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SRC-14-H12

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Square Roof Curb for 14

Square Roof Curb for 14

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Square Roof Curb for 14

Square Roof Curb for 14

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Square Roof Curb for 14

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SRC-16-H12

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Square Roof Curb for 16

Square Roof Curb for 16

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Square Roof Curb for 16

Square Roof Curb for 16

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Square Roof Curb for 16

Product Link

SRC-18-H12

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Square Roof Curb for 18

Square Roof Curb for 18

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Square Roof Curb for 18

Square Roof Curb for 18

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Square Roof Curb for 18

Product Link

SRC-20-H12

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Square Roof Curb for 20

Square Roof Curb for 20

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Square Roof Curb for 20

Square Roof Curb for 20

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Square Roof Curb for 20

Product Link

SRC-24-H12

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Square Roof Curb for 24

Square Roof Curb for 24

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Square Roof Curb for 24

Square Roof Curb for 24

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Square Roof Curb for 24

Product Link

SRC-30-H12

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Square Roof Curb for 30

Square Roof Curb for 30

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Square Roof Curb for 30

Square Roof Curb for 30

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Square Roof Curb for 30

Product Link

SRC-36-H12

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Square Roof Curb for 36

Square Roof Curb for 36

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Square Roof Curb for 36

Square Roof Curb for 36

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Square Roof Curb for 36

Product Link

SRC-42-H12

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Square Roof Curb for 42

Square Roof Curb for 42

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Square Roof Curb for 42

Square Roof Curb for 42

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Square Roof Curb for 42

Product Link

SRC-48-H12

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Square Roof Curb for 48

Square Roof Curb for 48

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Square Roof Curb for 48

Square Roof Curb for 48

Drawing-Cutaway

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Square Roof Curb for 48