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Chimney Pipe Elbow Offset Charts

Jun 8th 2020

Chimney Pipe Elbow Offset Charts

Simpson DuraTech 5"-8" Chart
Simpson DuraTech 5"-8"
Size 5", 6", 7", 8" Diameters
Elbow Angle from Vertical Chimney Length Between Elbows Offset Inches Rise Inches
15° 0" 2" 16 1/2"
15° 6" 3 1/4" 21 1/4"
15° 9" 4" 24 1/8"
15° 12" 4 3/4" 27"
15° 18" 6 1/4" 32 3/4"
15° 24" 8" 38 1/2"
15° 36" 11" 50 1/4"
15° 48" 14 1/4" 61 3/4"
15° 48" + 6" 15 1/2" 66 1/2"
15° 48" + 9" 16 1/4" 69 3/8"
15° 48" + 12" 17" 72 1/4"
15° 48" + 18" 18 1/2" 78"
15° 48" + 24" 20" 83 3/4"
30° 0" 4" 15 3/4"
30° 6" 6 1/4" 20"
30° 9" 7 3/4" 22 5/8"
30° 12" 9 1/4" 25 1/4"
30° 18" 12 1/4" 30 1/4"
30° 24" 15 1/4" 35 1/2"
30° 36" 21 1/4" 46"
30° 48" 27 1/4" 56 1/4"
30° 48" + 6" 29 3/4" 60 1/2"
30° 48" + 9" 31 1/4" 63 1/8"
30° 48" 12" 32 3/4" 65 3/4"
30° 48" + 18" 35 3/4" 71"
30° 48" + 24" 38 3/4" 76"


Simpson DuraTech 10"-16" Chart
Simpson DuraTech 10"-16"
Size 10", 12", 14", 16" Diameters
Elbow Angle from Vertical Chimney Length Between Elbows Offset Inches Rise Inches
15° 0" 2 3/4" 22 1/4"
15° 6" 4 1/4" 27 1/4"
15° 9" 5" 30 1/4"
15° 12" 5 3/4" 33 1/4"
15° 18" 7 1/4" 39"
15° 24" 9" 44 3/4"
15° 36" 12" 56 1/4"
15° 24" + 24" 14 3/4" 66 3/4"
30° 0" 6 1/4" 23 3/4"
30° 6" 8 3/4" 27 3/4"
30° 9" 10 1/4" 30 1/4"
30° 12" 11 3/4" 33"
30° 18" 14 3/4" 38 1/4"
30° 24" 17 3/4" 43 1/4"
30° 36" 23 3/4" 53 3/4"
30° 24" + 24" 29" 63"


Simpson DuraTech 18"-24" Chart
Simpson DuraTech 18"-24"
Size 18", 20", 22", 24" Diameters
Elbow Angle from Vertical Chimney Length Between Elbows Offset Inches Rise Inches
15° 0" 4 1/2" 34 1/2"
15° 12" 7 1/4" 45"
15° 18" 8 3/4" 50 3/4"
15° 24" 10 1/4" 56 1/2"
15° 36" 13 1/2" 68 1/4"
15° 24" + 24" 16 1/4" 78 3/4"
30° 0" 8 1/2" 32 3/4"
30° 12" 14" 42 1/4"
30° 18" 17" 47 1/2"
30° 24" 20" 52 3/4"
30° 36" 26" 63"
30° 24" + 24" 31 1/2" 72 1/2"


Simpson DuraPlus 6"-8" Chart
Simpson DuraPlus 6"-8"
Size 6" Diameter 7" Diameter 8" Diameter
Elbow Degrees Chimney Section Offset Inches Rise Inches Offset Inches Rise Inches Offset Inches Rise Inches
15° 0" 1 1/2" 12" 1 3/4" 13 1/2" 1 3/4" 13 1/2"
15° 12" 4 1/4" 23 1/2" 4 1/4" 20 1/2" 4 1/4" 23 1/2"
15° 24" 7 1/2" 34" 7 3/4" 35 1/2" 6 3/4" 35 1/2"
15° 36" 10 1/2" 45 1/2" 10 3/4" 46 3/4" 9 1/2" 47"
15° 48" 13 1/4" 55 1/2" 13 1/2" 57" 12" 57 1/4"
30° 0" 3 3/4" 14 3/4" 3 3/4" 14 1/4" 3 3/4" 14 3/4"
30° 12" 9" 24" 9" 24" 9" 24"
30° 24" 15" 33 3/4" 15" 33 1/4" 14 3/4" 34 1/4"
30° 36" 21" 44" 21" 43 1/2" 20 1/2" 44 3/4"
30° 48" 26 1/4" 53" 26" 52 1/2" 25 1/2" 53 3/4"


Simpson DuraPlus HTC 6"-8" Chart
Simpson DuraPlus HTC 6"-8"
Size 6" Diameter 7" Diameter 8" Diameter
Elbow Degrees Chimney Section Offset Inches Rise Inches Offset Inches Rise Inches Offset Inches Rise Inches
15° 0" 1 1/2" 12" 1 3/4" 13 1/2" 1 3/4" 13 1/2"
15° 12" 4 1/4" 23 1/2" 4 1/4" 20 1/2" 4 1/4" 23 1/2"
15° 24" 7 1/2" 34" 7 3/4" 35 1/2" 6 3/4" 35 1/2"
15° 36" 10 1/2" 45 1/2" 10 3/4" 46 3/4" 9 1/2" 47"
15° 48" 13 1/4" 55 1/2" 13 1/2" 57" 12" 57 1/4"
30° 0" 3 3/4" 14 1/4" 3 3/4" 14 1/4" 3 3/4" 14 3/4"
30° 12" 9" 24" 9" 24" 9" 24"
30° 24" 15" 33 3/4" 15" 33 1/4" 14 3/4" 34 1/4"
30° 36" 21" 44" 21" 43 1/2" 20 1/2" 44 3/4"
30° 48" 26 1/4" 53" 26" 52 1/2" 25 1/2" 53 3/4"
45° 0" 7 5/8" 19 7/8" 7 5/8" 19 7/8" 7 5/8" 19 7/8"
45° 12" 16" 28 1/4" 16" 28 1/4" 16" 28 1/4"
45° 24" 24 1/2" 36 7/8" 24 1/2" 36 7/8" 24 1/2" 36 7/8"
45° 36" 33" 45 1/4" 33" 45 1/4" 33" 45 1/2"
45° 48" 41 1/2" 53 3/4" 41 1/2" 53 3/4" 41 1/2" 53 3/4"


Simpson DuraChimney II 10"-16" Chart
Simpson DuraChimney II 10"-16"
Size 10", 12", 14", 16" Diameters
Elbow Angle from Vertical Chimney Length Between Elbows Offset Inches Rise Inches
15° 0" 2 3/4" 22 1/4"
15° 6" 4 1/4" 27 1/4"
15° 9" 5" 30 1/4"
15° 12" 5 3/4" 33 1/4"
15° 18" 7 1/4" 39"
15° 24" 9" 44 3/4"
15° 36" 12" 56 1/4"
15° 24" + 24" 14 3/4" 66 3/4"
30° 0" 6 1/4" 23 3/4"
30° 6" 8 3/4" 27 3/4"
30° 9" 10 1/4" 30 1/4"
30° 12" 11 3/4" 33"
30° 18" 14 3/4" 38 1/4"
30° 24" 17 3/4" 43 1/4"
30° 36" 23 3/4" 53 3/4"
30° 24" + 24" 29" 63"


Simpson DVL 6"-8" Chart
Simpson DVL 6"-8"
Size 6" Diameter 7" Diameter 8" Diameter
Elbow Degrees Chimney Section Offset Inches Rise Inches Offset Inches Rise Inches Offset Inches Rise Inches
45° 0" 4 1/2" 12" 4 5/8" 12 1/2" 6 1/4" 16 3/8"
45° 6" 7 7/8" 15 3/8" 8" 15 7/8" 9 5/8" 19 3/4"
45° 12" 12 3/32" 19 5/8" 12 1/4" 20 1/8" 13 7/8" 24"
45° 18" 16 5/16" 23 7/8" 16 1/2" 24 3/8" 18 1/8" 28 1/4"
45° 24" 20 9/16" 28 1/8" 20 3/4" 28 5/8" 22 3/8" 32 3/8"
45° 48" 37 1/2" 45 1/8" 37 3/4" 45 5/8" 39 1/4" 49 3/8"
90° 0" 11 1/8" 12 3/8" 12 3/4" 14" 13 3/4" 15"
90° 6" 15 7/8" 12 3/8" 17 1/2" 14" 18 1/2" 15"
90° 12" 21 7/8" 12 3/8" 23 1/2" 14" 24 1/2" 15"
90° 18" 27 7/8" 12 3/8" 29 1/2" 14" 30 1/2" 15"
90° 24" 33 7/8" 12 3/8" 35 1/2" 14" 36 1/2" 15"
90° 48" 57 7/8" 12 3/8" 59 1/2" 14" 60 1/2" 15"


Simpson DuraBlack 6"- 10" Chart
Simpson DuraBlack 6"- 10"
Size 6" Diameter 7" Diameter 8" Diameter 10" Diameter
Elbow Degrees Chimney Section Offset Inches Rise Inches Offset Inches Rise Inches Offset Inches Rise Inches Offset Inches Rise Inches
45° 0" 5 1/2" 14 1/2" 5 1/2" 12 3/4" 5 1/2" 14 3/4" 5 3/4" 15"
45° 12" 13" 22" 13 1/4" 22 1/4" 13 1/4" 22 1/4" 13 1/4" 22 3/4"
45° 24" 21 1/2" 30 1/2" 21 3/4" 30 3/4" 21 3/4" 30 3/4" 21 3/4" 31 1/4"
45° 48" 38 1/2" 44 1/2" 38 3/4" 47 3/4" 38 3/4" 47 3/4" 38 3/4" 48 1/4"
90° 0" 14 3/4" 16" 15" 16 1/4" 14 3/4" 16" 14 1/2" 16 3/4"
90° 12" 25 1/2" 16" 25 3/4" 16 1/4" 25 1/2" 16" 25 1/4" 16 3/4"
90° 24" 37 1/4" 16" 37 3/4" 16 1/4" 37 1/4" 16" 37 1/4" 16 3/4"
90° 48" 61 1/2" 16" 61 1/4" 16 1/4" 61 1/2" 16" 61 1/4" 16 3/4"


Simpson PelletVent Pro 3" -4" Chart
Simpson PelletVent Pro 3" -4"
Elbow Angle from Vertical Chimney Length Between Elbows Ø3" Offset Ø3" Rise Ø4" Offset Ø4" Rise
45° 0" 4 1/4" 11" 5" 12 3/4"
45° 6" 8" 14 3/4" 8 5/8" 16 3/8"
45° 12" 12 1/4" 19" 13 1/2" 21 1/8"
45° 24" 20 3/4" 27 3/8" 21 7/8" 29 5/8"
45° 36" 29 1/4" 36" 30 3/8" 38 1/8"
45° 24" + 24" 36 5/8" 43 3/8" 37 3/4" 45 1/2"
45° 60" 46 1/8" 52 7/8" 46 3/4" 54 1/2"
45° 36" + 36" 53 1/2" 60 3/8" 54 1/4" 62"
90° 0" 9 1/8" 10 3/8" 10 5/8" 11 3/8"
90° 6" 14 1/8" 10 3/8" 15 1/8" 11 3/8"
90° 12" 20 1/8" 10 3/8" 21 1/8" 11 3/8"
90° 24" 32 1/8" 10 3/8" 33 1/8" 11 3/8"
90° 36" 44 1/8" 10 3/8" 45 1/8" 11 3/8"
90° 24" + 24" 54 5/8" 10 3/8" 55 1/8" 11 3/8"
90° 60" 68 1/8" 10 3/8" 69 1/8" 11 3/8"
90° 36" + 36" 78 5/8" 10 3/8" 79 1/8" 11 3/8"


Simpson PelletVent 3" -4" Chart
Simpson PelletVent 3" -4"
Elbow Angle from Vertical Chimney Length Between Elbows Ø3" Offset Ø3" Rise Ø4" Offset Ø4" Rise
45° 0" 4 1/4" 11" 5" 12 3/4"
45° 6" 8" 14 3/4" 8 5/8" 16 3/8"
45° 12" 12 1/4" 19" 13 1/2" 21 1/8"
45° 24" 20 3/4" 27 3/8" 21 7/8" 29 5/8"
45° 36" 29 1/4" 36" 30 3/8" 38 1/8"
45° 24" + 24" 36 5/8" 43 3/8" 37 3/4" 45 1/2"
45° 60" 46 1/8" 52 7/8" 46 3/4" 54 1/2"
45° 36" + 36" 53 1/2" 60 3/8" 54 1/4" 62"
90° 0" 9 1/8" 10 3/8" 10 5/8" 11 3/8"
90° 6" 14 1/8" 10 3/8" 15 1/8" 11 3/8"
90° 12" 20 1/8" 10 3/8" 21 1/8" 11 3/8"
90° 24" 32 1/8" 10 3/8" 33 1/8" 11 3/8"
90° 36" 44 1/8" 10 3/8" 45 1/8" 11 3/8"
90° 24" + 24" 54 5/8" 10 3/8" 55 1/8" 11 3/8"
90° 60" 68 1/8" 10 3/8" 69 1/8" 11 3/8"
90° 36" + 36" 78 5/8" 10 3/8" 79 1/8" 11 3/8"


Simpson DirectVent Pro Chart
Simpson DirectVent Pro
Size 4" x 6 5/8" 5" x 8"
Elbow Degrees Chimney Section Offset Inches Rise Inches Offset Inches Rise Inches
45° 0" 4 7/8" 13 3/8" 5 5/8" 15 3/8"
45° 6" 8" 16 1/2" 8 7/8" 18 3/8"
45° 9" 10 1/8" 18 5/8" 10 7/8" 20 5/8"
45° 12" 12 1/4" 20 3/4" 13" 22 5/8"
45° 24" 20 5/8" 29 1/8" 21 3/8" 31 1/8"
45° 36" 29" 37 1/2" 29 7/8" 39 3/8"
45° 48" 37 3/8" 45 7/8" 38 1/4" 47 7/8"