PVC Pipe Sizing & Dimensions Guide

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All technical information is current as at June, 2026.

This centralised guide provides comprehensive PVC pipe dimensions and sizes for Australian infrastructure projects.

 

Find technical specifications for standard PVC pipe sizes across all Iplex PVC-U, PVC-M, and PVC-O systems, including comprehensive PVC pipe diameters for non-pressure or pressure applications below. 

Disclaimer: All drawings and information contained on this page are the exclusive property of Iplex. Iplex reserves the right to change product specifications and other information without prior notification. Measurements provided are for reference purposes only. Information is given in good faith and no warranty is provided or is to be implied with respect to either the information or the product, in particular the suitability of the product for any particular purpose. The purchaser should independently determine the suitability of the product for the intended application. For more information refer to our technical guide.

Non-Pressure PVC System Dimensions

Non-pressure systems are primarily used for gravity-fed applications where PVC pipe ID size (Internal Diameter) is critical for flow rate calculations.

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Stormwater Pipe Sizes

PVC Stormwater systems offer major advantages over other materials, including corrosion resistance, installation economics, operating efficiencies and reductions in maintenance costs. Find Iplex’s PVC-U stormwater pipe size information below.

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Stormwater pipe

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Product code Typical Dimensions
DN Nominal size (mm) Rating Dim (m) L Min. mean outside dia. (mm) L1 Typical wall thickness min. (mm) L2
WPSO75 75 SN2 6 75.0 1.6
WPSO90 90 SN2 6 90.0 1.9
WPSO90EH 90 SN4 6 90.0 2.5
WPSO90EHJAZZ 90 SN4 6 90.0 2.5
WPSO150 150 SN2 6 160.0 3.2
WPSO225 250 SN2 6 250.0 5.5
WPSO300 300 SN2 6 315.0 6.0
WPSO375 375 SN2 6 400.0 7.9

Slotted stormwater pipe

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Product code Typical Dimensions
DN Nominal size (mm) Rating Dim (m) L Min. mean outside dia. (mm) L1 Typical wall thickness min. (mm) L2
WPSO90SL 90 6 90.0 90.3 1.9
WPSO150SL 150 6 160.0 160.5 3.2

Rainwater downpipe

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Product code Typical Dimensions
DN Nominal size (mm) Rating Dim (m) L Min. mean outside dia. (mm) L1 Typical wall thickness min. (mm) L2
RDP075 75 N/A 3 75.0 1.6
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DWV Pipe Sizes

Iplex is a pioneer in PVC Drain, Waste, and Vent (DWV) systems, offering a comprehensive range of DWV pipe sizes, ranging from 40mm to 375mm in diameter.

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Drain, waste and vent pipe - solvent weld

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Product code Typical Dimensions
DN Nominal size (mm) Stiffness rating Length (m) L Min. mean outside dia. (mm) L1 Wall thickness min. (mm) L2
DPSH40 40 SH 6 43 2.0
DPSH50 50 SH 6 56 2.2
DPSH65 65 SH 6 69 2.7
DPSH80 80 SH 6 82 2.9
DSMH100 100 SN6 6 110 3.0
DSMH150 150 SN4 6 160 4.2
DSMH225 225 SN4 6 250 6.6
DSMH300 300 SN4 6 315 8.4
DSME100C 100 SN10 3 110 3.9
DSME100 100 SN10 6 110 3.9
DSME150C 150 SN8 3 160 5.2
DSME150 150 SN8 6 160 5.2
DSME225C 225 SN8 3 250 8.2
DSME225 225 SN8 6 250 8.2
DSEH300C 300 SN8 3 315 10.4
DSEH300 300 SN8 6 315 10.4

Note: Rating SH = Standard.

Drain, waste and vent pipe - rubber ring

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Product code Typical Dimensions
DN Nominal size (mm) Stiffness rating Length (m) L Min. mean outside dia. (mm) L1 Wall thickness min. (mm) L2
DRMH150C 150 SN4 3 160 4.2
DRMH225C 225 SN4 3 250 6.6
DRSH300C 300 SN4 3 315 8.4
DRSH375C 375 SN4 3 400 10.6
DRME150C 150 SN8 3 160 5.2
DRME225C 225 SN8 3 250 8.2
DRME300C 300 SN8 3 315 10.4
DREH375C 375 SN8 3 400 13.2
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Electrical & Telecommunications PVC Conduit Sizes

Find PVC conduit dimensions for electrical and telecommunications in open trench or trenchless applications.

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PVC conduits for telecommunications

PVC conduits - white (branded “telecommunications”)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
CTCO20 20 26.8 23.4 1.7 4.5 38
CTCR50 50 60.3 54.7 2.8 4.5 64
P900100445 100 114.3 104.6 4.9 4.5 104

PVC conduits - white (heavy duty)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
P600506WHT 50 49.9 42.6 3.7 6 55
P600804WHT 80 88.9 79 5.0 4 78
P6001004WHT 100 114.3 101.7 6.3 4 105
P6001504WHT 150 160.3 142.7 8.8 4 127

PVC conduits - white (manufactured to AUSTEL Spec TS009 branded “telecommunications”)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
P900204 20 19.9 16 2.0 4 16
P900254 25 24.9 21 2.0 4 20
P900324 32 31.9 27.4 2.3 4 25
P900504 50 49.9 44 3.0 4 40
P900806 80 88.9 81.3 3.8 6 73
P9001006 100 114.3 104.6 4.9 6 99

PVC communication conduits - solid wall layered heavy duty white (Qld TMR market)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
EHDOSC100DWHT 100 114.3 101.7 6 4 101.5

PVC communication conduits - solid wall heavy duty white (Vic market)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
EHDOW100D 100 114.3 101.7 6 4 101.5
EHDOW125D 125 140 124.9 7.2 4 115

PVC conduits for electrical

PVC electrical conduits - light duty orange

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
P300806* 80 88.7 94.9 2 6 75
P400806 80 88.7 83.7 2.6 6 75
P4001006 100 114.1 107.8 3.2 6 105
P4001256 125 140 132.2 4 6 120
P4001506 150 160 151.3 4.5 6 128
P4002006 200 225 213.8 5.7 6 150

*Very Light Duty.

PVC electrical conduits - medium duty grey

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
P500164 16 15.7 12.4 1.6 4 30
P500204 20 19.7 16 1.8 4 30
P500254 25 24.7 21 1.8 4 37
P500324 32 31.7 27.4 2.1 4 45
P500404 40 39.7 34.8 2.4 4 45
P500504 50 49.7 44 2.8 4 55

PVC electrical conduits - heavy duty orange

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
P600204 20 19.7 15 2.4 4 30
P600254 25 24.7 19.6 2.6 4 37
P600324 32 31.7 26.2 2.8 4 45
P600404 40 39.7 33.4 3.2 4 45
P600504 50 49.7 42.6 3.6 4 55
P600634 63 62.7 54.5 4.2 4 55
P600804* 80 88.7 79 4.9 4 78
P6001004* 100 114.1 101.7 6.3 4 105
P6001254* 125 140 124.9 7.6 4 117
P6001504* 150 160 142.7 8.8 4 127
P6002004* 200 225 203.1 11.1 4 150

*Sizes 80mm - 200mm are foam core construction

PVC electrical conduits - solid wall heavy duty orange (Vic market)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
EHDO80D 80 88.7 79 4.9 4 75
EHDO100D 100 114.1 101.7 6.3 4 102
EHDO125D 125 140 124.9 7.6 4 117
EHDO150D 150 160 142.7 8.8 4 127
EHDO200F 200 225 203.1 11.1 6 150

PVC electrical conduits - solid wall heavy duty orange (Qld TMR market)

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Product code Typical Dimensions
DN Nominal size (mm) Mean OD (mm) L1 Mean ID (mm) L2 Wall thickness (mm) L3 Nominal length (m) L4 Socket length (mm) L5
EHDOSC80D 80 88.7 79 4.6 4 73
EHDOSC100D 100 114.1 101.7 5.9 4 99
EHDOSC125D 125 140 124.9 7.2 4 115
EHDOSC150D 150 160 142.7 8.3 4 124
EHDOSC200F 200 225 203.1 10.5 6 140

Pressure PVC System Dimensions

Iplex PVC pressure pipes are engineered for durability across high-pressure applications. Our advanced manufacturing and quality assurance ensure consistent performance across all pressure pipe dimensions for water supply, irrigation, and sewerage systems.

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PVC-U Pressure Pipe Sizes

Trusted for decades, Iplex PVC-U pressure pipes provide a rigid, cost-effective solution for potable water trunk mains and industrial process pipelines. PVC-U pressure system pipe sizes available from DN15 to DN375.

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PVC-U (SWJ) pressure pipe series 1 pipe dimensions

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Nominal Diameter DN Mean outside diameter PN4.5 PN6 PN9 PN12 (PN15*) PN18
T ID T ID T ID T ID T ID
15 21.4 - - - - - - - 1.5* 18.3* 1.8 17.8
20 26.8 - - - - - - - 1.5 23.7 2.2 22.4
25 33.6 - - - - 1.5 30.5 1.9 29.8 2.7 28.1
32 42.3 - - - - 1.9 38.5 2.4 37.5 3.4 35.4
40 48.3 - - 1.5 45.2 2.1 44.1 2.7 42.8 3.9 40.5
50 60.4 - - 1.8 56.8 2.6 55.2 3.3 53.7 4.9 50.5
65 75.4 1.7 72 2.2 71 3.2 68.9 4.2 67 6.1 63.2
80 88.9 2 84.9 2.6 83.7 3.8 81.3 4.9 79 7.1 74.6
100 114.3 2.5 109.3 3.2 107.8 4.8 104.6 6.3 101.7 9.1 96
125 140.2 3 134.1 4 132.2 5.9 128.4 7.6 124.9 - -
150 160.3 3.4 153.4 4.5 151.3 6.7 146.9 8.8 142.7 12.8 134.7

PVC-U (SWJ) pressure pipe series 1 pipe dimensions

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Nominal Diameter DN Socket length Chamfer length Maximum outside diameter of socket
SWJ SWJ PN6 PN9 PN12 PN18
15 36 3 - - - 25.3
20 36 3 - - 30.1 31.5
25 36 3 - 36.9 37.7 39.3
32 36 3 - 46.4 47.4 49.4
40 49 3 51.6 52.8 54 56.4
50 62 3 64.3 65.9 67.3 70.5
65 62 3 - - 84.1 87.9
80 75.0 3 94.5 96.0 99.1 103.5
100 101.0 3 121.3 9.0 127.5 133.1
125 128 3 148.8 152.6 156.0 -
150 128.0 3 148.8 124.5 156.0 -

Overall length of SWJ pipe = effective length + socket length.

PVC-U (RRJ) pressure pipe series 1 pipe dimensions

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Nominal Diameter DN RRJ - rubber ring joint Insertion Length Chamfer Length Maximum outside diameter over ring groove (mm)
RRJ RRJ PN 4.5 PN 6 PN 9 PN 12 PN 15 PN 18
80 121 13 114.1 115.3 117.9 120.3 122.7 124.9
100 155 11 142.4 144 147.4 150.4 153.4 156.4
125
150 146 18 193.9 196.1 200.7 205.1 209.3 213.5
200 173 17 269.8 272.8 278.4 284 289.4 294.8
225 180 25 295.6 298.8 305.2 311.4 317.4 323.4
250 194 27 330.2 333.8 341 347.8 354.6 361.2
300 201 30 366.7 370.9 378.7 386.5 394.1 401.5
375 236 35 461.2 466.4 476.4 486.4 496 505.4

Overall length of RRJ pipe = effective length + insertion length

Note:
All dimensions are in millimetres. T = average mean wall thickness ID = average mean inside diameter
The standard effective length for all pipes is 6 m + 50 mm, -0 mm
Some sizes and classes are subject to minimum order quantities and availability at time of order

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PVC-M Pressure Pipe Sizes - Rhino®

Iplex Rhino® PVC-M pipes incorporate the advancements of modified PVC technology to deliver a high-performance pressure piping solution.

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Rhino (Series 1) pipe dimensions

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Nominal Diameter DN Mean outside diameter PN6 PN9 PN12 PN15 PN18
T ID T ID T ID T ID
100 114.3 3.2 107.9 3.2 107.9 4.1 106.1 5.1 104.1 6.0 102.3
150 160.3 3.7 152.9 4.3 151.7 5.7 148.9 7.1 146.1 8.3 143.7
200 225.3 5.2 214.9 6.1 213.1 8.0 209.3 9.9 205.5 11.7 201.9
225 250.4 5.8 238.8 6.7 237.0 8.8 232.8 10.9 228.6 13.1 224.2
250 280.4 6.4 267.6 7.5 265.4 9.9 260.6 12.4 255.6 14.5 251.4
300 315.5 7.2 301.1 8.4 298.7 11.2 293.1 13.8 287.9 16.3 282.9
375 400.5 9.2 382.1 10.6 379.3 14.1 372.3 17.5 365.5 20.7 359.1
450* 500.5 11.8 476.9 13.8 472.9 18.1 464.3
500* 560.5 13.2 534.1 15.5 529.5 20.3 519.9
575* 630.5 14.7 601.1 17.3 595.9 22.8 584.9

Note: *These sizes are made to order only.

Rhino (Series 2) pipe dimensions

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Nominal Diameter DN Mean outside diameter PN6 PN9 PN12 PN15 PN18
T ID T ID T ID T ID T ID
100 121.9 4.4 113.1 5.7 110.5 6.4 109.1 7.1 107.7
150 177.4 6.3 164.8 8.3 160.8 9.2 159.0 10.2 157.0
200 232.3 8.2 215.9 10.8 210.7 12.0 208.3 13.3 205.7
225 259.3 7.0 245.3 9.2 240.9 12.0 235.3 13.4 232.5 14.8 229.7
250 286.2 7.7 270.8 10.1 266.0 13.3 259.6 14.8 256.6 16.4 253.4
300 345.4 9.3 326.8 12.2 321.0 16.0 313.4 17.8 309.8 19.7 306.0
375 426.2 11.4 403.4 14.9 396.4 19.7 386.8 22.0 382.2 24.3 377.6
450* 507.0 13.5 480.0 17.8 471.4 23.4 460.2
500* 560.3 18.4 523.5 20.3 519.7

Note: *These sizes are made to order only.

All dimensions are in millimetres. T = average mean wall thickness. ID = average mean inside diameter.

The standard effective length for all pipes is 6m+50/-0mm.

Rhino (Series 1) RRJ pipe dimensions

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Nominal Diameter DN RRJ - rubber ring joint
Insertion Length Chamfer Length Maximum outside diameter over ring groove (mm)
PN6 PN9 PN12 PN15 PN18
100 155.0 19.0 143.8 144.8 146.8 149.0 205.7
150 166.0 17.0 195.5 197.1 199.7 202.7 287.2
200 199.0 21.0 272.8 274.8 279.0 283.0 314.8
225 203.0 23.0 299.0 301.0 305.6 310.2 351.4
250 220.0 25.0 333.6 336.2 341.2 346.6 390.7
300 227.0 27.0 370.5 373.1 379.1 384.9 491.2
375 262.0 32.0 465.8 469.4 476.6 484.2 612.6
450* 209.0 38.0 581.0 585.2 594.4 604.2 682.7
500* 327.0 42.0 647.1 652.1 662.3 673.3
575 350.0 45.0

Rhino (Series 2) RRJ pipe dimensions

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Nominal Diameter DN RRJ - rubber ring joint
Insertion Length Chamfer Length Maximum outside diameter over ring groove (mm)
RRJ RRJ PN6 PN9 PN12 PN15 PN18
100 152.0 15.0 154.7 157.7 100
150 174.0 18.0 217.1 221.5 150
200 201.0 21.0 281.7 287.5 200
225 209.0 22.0 305.7 307.7 312.5 319.1 225
250 218.0 23.0 335.6 338.0 343.4 350.2 250
300 234.0 26.0 402.2 405.2 411.6 419.8 300
375 280.0 30.0 492.9 496.7 504.7 515.1 375
450* 307.0 32.0 583.1 587.5 596.9 609.3 450*
500* 320.0 42.0

Overall Length of RRJ pipe = Effective length + Insertion length.

The diagrams below provide a visual reference for the dimensional details listed in the above tables. They show key features such as effective length, insertion length, witness marks, and other measurements relevant to jointing and installation.

PVC-O Pressure Pipe Sizes (Apollo®)

PVC-O is highly impact resistant and provides increased hydraulic capacity compared to other PVC systems due to its exceptionally smooth and enlarged bore.

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Apollo Blue (Series 1) pipe dimensions

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Nominal Diameter DN Nominal outside diameter mm Nominal thickness mm Nominal internal diameter ID Witness mark length Chamfer length (10-15° angle)
100 121.7 3.4 114.9 146.0 6.0
150 177.1 4.9 167.9 165.0 9.0
200 231.9 6.4 219.1 186.0 12.0
225 258.9 7.1 244.7 200.0 13.0
250 285.8 7.9 270.0 208.0 14.0
300 344.9 9.5 325.9 218.0 17.0

Sustainability & Best Environmental Practice PVC

Iplex is proudly committed to the circular economy through the manufacturing of Best Environmental Practice PVC. Our PVC pipes are engineered to meet rigorous standards while minimising lifecycle environmental impacts.

Find more information about our PipeBack PVC recycling program.

Interpreting PVC Dimensions & Standards

Understanding the relationship between nominal and actual dimensions is critical for accurate hydraulic modelling and on-site installation. Iplex PVC systems are manufactured to specific Australian Standards (AS/NZS), where "Nominal" sizes do not always equal the physical measurement.

DN vs. OD vs. ID

A higher pressure rating requires a thicker wall, which reduces the ID.

DN (Nominal Diameter)

A dimensionless alphanumeric designation used for reference. For example, a DN150 pipe is a reference term, not an exact measurement of 150mm.

OD (Outside Diameter)

The critical dimension for jointing. In PVC systems, the OD is controlled to ensure compatibility with fittings and couplings.

ID (Inside Diameter / Mean Bore)

The critical dimension for hydraulic capacity. Unlike OD, the ID varies based on the Pressure Class (PN) or Stiffness Rating (SN).