Shop By Category

Square Roof Curbs (Non insulated)

60 products

  • Roof Curb 6 inches tall for 3 inch Diameter Vents

    Model RC-3-H6

    Model RC-3-H6

    Opening: 5"

    Height 6"

    Lenth: 6"

    SKU: SRC-3-H6

    Price: $15.00 USD

    $15.00 USD
  • Roof Curb (Inside Throat Diameter: 5? Outside Length & Width: 6? Height: 8? ) | Model RC-3-H8

    Model RC-3-H8

    Model RC-3-H8

    Opening: 5"

    Height 8"

    Lenth: 6"

    SKU: SRC-3-H8

    Price: $18.00 USD

    $18.00 USD
  • Roof Curb 12 inches tall for 3 inch Diameter Vents

    Model RC-3-H12

    Model RC-3-H12

    Opening: 5"

    Height 12"

    Lenth: 6"

    SKU: SRC-3-H12

    Price: $24.00 USD

    $24.00 USD
  • Roof Curb 6 inches tall for 4 inch Diameter Vents

    Model RC-4-H6

    Model RC-4-H6

    Opening: 6"

    Height 6"

    Lenth: 7"

    SKU: SRC-4-H6

    Price: $18.00 USD

    $18.00 USD
  • Roof Curb (Inside Throat Diameter: 6” Outside Length & Width: 7” Height: 8”) | Model RC-4-H8

    Model RC-4-H8

    Model RC-4-H8

    Opening: 6"

    Height 8"

    Lenth: 7"

    SKU: SRC-4-H8

    Price: $20.00 USD

    $20.00 USD
  • Roof Curb 12 inches tall for 4 inch Diameter Vents or Fan

    Model RC-4-H12

    Model RC-4-H12

    Opening: 6"

    Height 12"

    Lenth: 7"

    SKU: SRC-4-H12

    Price: $26.00 USD

    $26.00 USD
  • Roof Curb 6 inches tall for 5 inch Diameter Vents

    Model RC-5-H6

    Model RC-5-H6

    Opening: 7"

    Height 6"

    Lenth: 8"

    SKU: SRC-5-H6

    Price: $21.00 USD

    $21.00 USD
  • Roof Curb (Inside Throat Diameter: 7” Outside Length & Width: 8” Height: 8”) | Model RC-5-H8

    Model RC-5-H8

    Model RC-5-H8

    Opening: 7"

    Height 8"

    Lenth: 8"

    SKU: SRC-5-H8

    Price: $23.00 USD

    $23.00 USD
  • Roof Curb 12 inches tall for 5 inch Diameter Vents or Fan

    Model RC-5-H12

    Model RC-5-H12

    Opening: 7"

    Height 12"

    Lenth: 8"

    SKU: SRC-5-H12

    Price: $29.00 USD

    $29.00 USD
  • Roof Curb 6 inches tall for 6 inch Diameter Vents

    Model RC-6-H6

    Model RC-6-H6

    Opening: 8"

    Height 6"

    Lenth: 9"

    SKU: SRC-6-H6

    Price: $24.00 USD

    $24.00 USD
  • Roof Curb (Inside Throat Diameter: 8” Outside Length & Width: 9” Height: 8”) | Model RC-6-H8

    Model RC-6-H8

    Model RC-6-H8

    Opening: 8"

    Height 8"

    Lenth: 9"

    SKU: SRC-6-H8

    Price: $26.00 USD

    $26.00 USD
  • Roof Curb 12 inches tall for 6 inch Diameter Vents or Fans

    Model RC-6-H12

    Model RC-6-H12

    Opening: 8"

    Height 12"

    Lenth: 9"

    SKU: SRC-6-H12

    Price: $32.00 USD

    $32.00 USD
  • Roof Curb 6 inches tall for 7 inch Diameter Vents

    Model RC-7-H6

    Model RC-7-H6

    Opening: 9"

    Height 6"

    Lenth: 10"

    SKU: SRC-7-H6

    Price: $27.00 USD

    $27.00 USD
  • Model RC-7-H8 | Roof Curb for 7" Diameter Vent | 8" high walls

    Model RC-7-H8

    Model RC-7-H8

    Opening: 9"

    Height 8"

    Lenth: 10"

    SKU: SRC-7-H8

    Price: $29.00 USD

    $29.00 USD
  • Roof Curb 12 inches tall for 7 inch Diameter Vents or Fans

    Model RC-7-H12

    Model RC-7-H12

    Opening: 9"

    Height 12"

    Lenth: 10"

    SKU: SRC-7-H12

    Price: $35.00 USD

    $35.00 USD
  • Roof Curb 6 inches tall for 8 inch Diameter Vents

    Model RC-8-H6

    Model RC-8-H6

    Opening: 10"

    Height 6"

    Lenth: 11"

    SKU: SRC-8-H6

    Price: $30.00 USD

    $30.00 USD
  • Roof Curb (Inside Throat Diameter: 10” Outside Length & Width: 11” Height: 8”) | Model RC-8-H8

    Model RC-8-H8

    Model RC-8-H8

    Opening: 10"

    Height 8"

    Lenth: 11"

    SKU: SRC-8-H8

    Price: $32.00 USD

    $32.00 USD
  • Roof Curb 12 inch Tall for 8 inch Diameter Vents or Fans

    Model RC-8-H12

    Model RC-8-H12

    Opening: 10"

    Height 12"

    Lenth: 11"

    SKU: SRC-8-H12

    Price: $39.00 USD

    $39.00 USD
  • Roof Curb 6 inches tall for 9 inch Diameter Vents

    Model RC-9-H6

    Model RC-9-H6

    Opening: 11"

    Height 6"

    Lenth: 12"

    SKU: SRC-9-H6

    Price: $35.00 USD

    $35.00 USD
  • Roof Curb (Inside Throat Diameter: 11” Outside Length & Width: 12” Height: 8”) | Model RC-9-H8

    Model RC-9-H8

    Model RC-9-H8

    Opening: 11"

    Height 8"

    Lenth: 12"

    SKU: SRC-9-H8

    Price: $37.00 USD

    $37.00 USD
  • Roof Curb 12 inch Tall for 9 inch Diameter Vents or Fans

    Model RC-9-H12

    Model RC-9-H12

    Opening: 11"

    Height 12"

    Lenth: 12"

    SKU: SRC-9-H12

    Price: $43.00 USD

    $43.00 USD
  • Roof Curb 6 inches tall for 10 inch Diameter Vents

    Model RC-10-H6

    Model RC-10-H6

    Opening: 12"

    Height 6"

    Lenth: 13"

    SKU: SRC-10-H6

    Price: $40.00 USD

    $40.00 USD
  • Roof Curb (Inside Throat Diameter: 12” Outside Length & Width: 13” Height: 8”) | Model RC-10-H8

    Model RC-10-H8

    Model RC-10-H8

    Opening: 12"

    Height 8"

    Lenth: 13"

    SKU: SRC-10-H8

    Price: $42.00 USD

    $42.00 USD
  • Roof for 12 inch Tall 10 inch Diameter Vent or Fan

    Model RC-10-H12

    Model RC-10-H12

    Opening: 12"

    Height 12"

    Lenth: 13"

    SKU: SRC-10-H12

    Price: $47.00 USD

    $47.00 USD
  • Roof Curb 6 inches tall for 12 inch diameter vents

    Model RC-12-H6

    Model RC-12-H6

    Opening: 13"

    Height 6"

    Lenth: 15"

    SKU: SRC-12-H6

    Price: $45.00 USD

    $45.00 USD
  • Roof Curb (Inside Opening: 13” Outside Length & Width: 15” Height: 8”) | Model RC-12-H8

    Model RC-12-H8

    Model RC-12-H8

    Opening: 13"

    Height 8"

    Lenth: 15"

    SKU: SRC-12-H8

    Price: $50.00 USD

    $50.00 USD
  • Roof for 12 inch Tall12 inch Diameter Vent or Fan

    Model RC-12-H12

    Model RC-12-H12

    Opening: 13"

    Height 12"

    Lenth: 15"

    SKU: SRC-12-H12

    Price: $60.00 USD

    $60.00 USD
  • Roof Curb for 12 inch diameter vents or fans

    Model RC-12-H18

    Model RC-12-H18

    Opening: 13"

    Height 18"

    Lenth: 15"

    SKU: SRC-12-H18

    Price: $100.00 USD

    $100.00 USD
  • Roof Curb 6 inches tall for 14 inch diameter vents

    Model RC-14-H6

    Model RC-14-H6

    Opening: 15"

    Height 6"

    Lenth: 17"

    SKU: SRC-14-H6

    Price: $50.00 USD

    $50.00 USD
  • Roof Curb (Inside Opening: 15” Outside Length & Width: 17” Height: 8”) | Model RC-14-H8

    Model RC-14-H8

    Model RC-14-H8

    Opening: 15"

    Height 8"

    Lenth: 17"

    SKU: SRC-14-H8

    Price: $60.00 USD

    $60.00 USD
  • Roof for 12 inch Tall 14 inch Diameter Vent or Fan

    Model RC-14-H12

    Model RC-14-H12

    Opening: 15"

    Height 12"

    Lenth: 17"

    SKU: SRC-14-H12

    Price: $70.00 USD

    $70.00 USD
  • Roof Curb 18 inches tall for 14 inch diameter vents or fans

    Model RC-14-H18

    Model RC-14-H18

    Opening: 15"

    Height 18"

    Lenth: 17"

    SKU: SRC-14-H18

    Price: $110.00 USD

    $110.00 USD
  • Roof Curb 6 inches tall for 16 inch diameter vents

    Model RC-16-H6

    Model RC-16-H6

    Opening: 17"

    Height 6"

    Lenth: 19"

    SKU: SRC-16-H6

    Price: $55.00 USD

    $55.00 USD
  • Roof Curb (Inside Opening: 17” Outside Length & Width: 19” Height: 8”) | Model RC-16-H8

    Model RC-16-H8

    Model RC-16-H8

    Opening: 17"

    Height 8"

    Lenth: 19"

    SKU: SRC-16-H8

    Price: $70.00 USD

    $70.00 USD
  • Model RC-16-H12 | Roof Curb for 16" Diameter Vent | 12" high walls

    Model RC-16-H12

    Model RC-16-H12

    Opening: 17"

    Height 12"

    Lenth: 19"

    SKU: SRC-16-H12

    Price: $80.00 USD

    $80.00 USD
  • Roof Curb 18 inches tall for 16 inch diameter vents

    Model RC-16-H18

    Model RC-16-H18

    Opening: 17"

    Height 18"

    Lenth: 19"

    SKU: SRC-16-H18

    Price: $125.00 USD

    $125.00 USD
  • Model RC-18-H6 | Roof Curb for 18" Diameter Vent | 6" high walls

    Model RC-18-H6

    Model RC-18-H6

    Opening: 19"

    Height 6"

    Lenth: 21"

    SKU: SRC-18-H7

    Price: $60.00 USD

    $60.00 USD
  • Roof Curb (Inside Opening: 19” Outside Length & Width: 21” Height: 8”) | Model RC-18-H8

    Model RC-18-H8

    Model RC-18-H8

    Opening: 19"

    Height 8"

    Lenth: 21"

    SKU: SRC-18-H8

    Price: $80.00 USD

    $80.00 USD
  • Roof Curb 12 inches tall for 18 inch Diameter Vents or Fan

    Model RC-18-H12

    Model RC-18-H12

    Opening: 19"

    Height 12"

    Lenth: 21"

    SKU: SRC-18-H12

    Price: $90.00 USD

    $90.00 USD
  • Roof Curb 18 inches tall for 18 inch diameter vents or fans

    Model RC-18-H18

    Model RC-18-H18

    Opening: 19"

    Height 18"

    Lenth: 21"

    SKU: SRC-18-H19

    Price: $140.00 USD

    $140.00 USD
  • Roof Curb 6 inches tall for 12 inch diameter vents

    Model RC-20-H6

    Model RC-20-H6

    Opening: 21"

    Height 6"

    Lenth: 23"

    SKU: SRC-20-H7

    Price: $70.00 USD

    $70.00 USD
  • Roof Curb (Inside Opening: 21” Outside Length & Width: 23” Height: 8”) | Model RC-20-H8

    Model RC-20-H8

    Model RC-20-H8

    Opening: 21"

    Height 8"

    Lenth: 23"

    SKU: SRC-20-H8

    Price: $90.00 USD

    $90.00 USD
  • Roof Curb 12 inches tall for 20 inch Diameter Vents or Fan

    Model RC-20-H12

    Model RC-20-H12

    Opening: 21"

    Height 12"

    Lenth: 23"

    SKU: SRC-20-H12

    Price: $105.00 USD

    $105.00 USD
  • Roof Curb 18 inch Tall for 20 Inch Diameter Vents and Fans

    Model RC-20-H18

    Model RC-20-H18

    Opening: 21"

    Height 18"

    Lenth: 23"

    SKU: SRC-20-H18

    Price: $155.00 USD

    $155.00 USD
  • Roof Curb 6 inches tall for 24 inch diameter vents

    Model RC-24-H6

    Model RC-24-H6

    Opening: 25"

    Height 6"

    Lenth: 27"

    SKU: SRC-24-H6

    Price: $80.00 USD

    $80.00 USD
  • Roof Curb (Inside Opening: 25” Outside Length & Width: 27” Height: 8”) | Model RC-24-H8

    Model RC-24-H8

    Model RC-24-H8

    Opening: 25"

    Height 8"

    Lenth: 27"

    SKU: SRC-24-H8

    Price: $100.00 USD

    $100.00 USD
  • Model RC-24-H12 | Roof Curb for 24" Diameter Vent | 12" high walls

    Model RC-24-H12

    Model RC-24-H12

    Opening: 25"

    Height 12"

    Lenth: 27"

    SKU: SRC-24-H12

    Price: $130.00 USD

    $130.00 USD
  • Roof Curb 18 inch Tall for 24 Inch Diameter Vents and Fans

    Model RC-24-H18

    Model RC-24-H18

    Opening: 25"

    Height 18"

    Lenth: 27"

    SKU: SRC-24-H18

    Price: $175.00 USD

    $175.00 USD
  • Roof Curb (Inside Throat Diameter: 31? Outside Length & Width: 33? Height: 8? ) | Model RC-30-H8

    Model RC-30-H8

    Model RC-30-H8

    Opening: 31"

    Height 8"

    Lenth: 33"

    SKU: SRC-30-H8

    Price: $120.00 USD

    $120.00 USD
  • Model RC-30-H12 | Roof Curb for 30" Diameter Vent | 12" high walls

    Model RC-30-H12

    Model RC-30-H12

    Opening: 31"

    Height 12"

    Lenth: 33"

    SKU: SRC-30-H12

    Price: $155.00 USD

    $155.00 USD
  • Roof Curb 18 inch Tall for 30 Inch Diameter Vents and Fans

    Model RC-30-H18

    Model RC-30-H18

    Opening: 31"

    Height 18"

    Lenth: 33"

    SKU: SRC-30-H18

    Price: $200.00 USD

    $200.00 USD
  • Roof Curb (Inside Throat Diameter: 37? Outside Length & Width: 39? Height: 8? ) | Model RC-36-H8

    Model RC-36-H8

    Model RC-36-H8

    Opening: 37"

    Height 8"

    Lenth: 39"

    SKU: SRC-36-H8

    Price: $140.00 USD

    $140.00 USD
  • Roof Curb for 36 inch diameter vents or fans

    Model RC-36-H12

    Model RC-36-H12

    Opening: 37"

    Height 12"

    Lenth: 39"

    SKU: SRC-36-H12

    Price: $180.00 USD

    $180.00 USD
  • Roof Curb 18 inch Tall for 36 inch Diameter Vents and Fans

    Model RC-36-H18

    Model RC-36-H18

    Opening: 37"

    Height 18"

    Lenth: 39"

    SKU: SRC-36-H18

    Price: $250.00 USD

    $250.00 USD
  • Roof Curb (Inside Throat Diameter: 43? Outside Length & Width: 45? Height: 8? ) | Model RC-42-H8

    Model RC-42-H8

    Model RC-42-H8

    Opening: 43"

    Height 8"

    Lenth: 45"

    SKU: SRC-42-H8

    Price: $165.00 USD

    $165.00 USD
  • Roof Curb for 42 inch diameter vents or fans

    Model RC-42-H12

    Model RC-42-H12

    Opening: 43"

    Height 12"

    Lenth: 45"

    SKU: SRC-42-H12

    Price: $250.00 USD

    $250.00 USD
  • Roof Curb 18 inch Tall for 42 Inch Diameter Vents and Fans

    Model RC-42-H18

    Model RC-42-H18

    Opening: 43"

    Height 18"

    Lenth: 45"

    SKU: SRC-42-H20

    Price: $300.00 USD

    $300.00 USD
  • Roof Curb (Inside Throat Diameter: 49? Outside Length & Width: 51? Height: 8? ) | Model RC-48-H8

    Model RC-48-H8

    Model RC-48-H8

    Opening: 49"

    Height 8"

    Lenth: 51"

    SKU: SRC-48-H8

    Price: $200.00 USD

    $200.00 USD
  • Roof Curb 12 inch Tall for 48 inch Diameter Vents or Fan

    Model RC-48-H12

    Model RC-48-H12

    Opening: 49"

    Height 12"

    Lenth: 51"

    SKU: SRC-48-H12

    Price: $300.00 USD

    $300.00 USD
  • Roof Curb 18 inch tall for 48 inch Diameter Vents and Fans

    Model RC-48-H18

    Model RC-48-H18

    Opening: 49"

    Height 18"

    Lenth: 51"

    SKU: SRC-48-H18

    Price: $350.00 USD

    $350.00 USD