PVC pipe sizes

Here are some PVC pipe sizes available in Australia

These tables come from the IPLEX website.
The highlighted rows are sizes that have been used in projects on this site.

All measurements are in mm

DWV - Drain, Waste and Vent, commonly known as Sewer Pipe

Nominal Dia Class Mean Outside Diameter Mean Wall Thickness Mean Inside Diameter
32 SH 36.3 2.1 32
40 SH 42.9 2.2 38
50 SH 55.8 2.2 51
65 SH 68.9 2.9 63
80 SH 82.5 3.1 76
100 SN6 110.2 3.0 104
100 SN10 110.2 3.5 103
150 SN4 160.3 4.0 152
150 SN8 160.3 4.8 150
225 SN4 250.4 6.1 238
225 SN8 250.4 7.6 235
300 SN4 315.5 7.7 300
300 SN8 315.5 9.6 296
375 SN4 400.5 9.7 381
375 SN8 400.5 12.1 376

PVC-U - commonly known as Stormwater Pipe

Nominal Dia Mean Outside Diameter Mean Wall Thickness Mean Inside Diameter
75 75 1.6 71.8
90 90 1.9 86.2
90 extra heavy 90 2.5 85
100 110 2.4 105.2
150 160 3.2 155.6
225 240 5.0 230
300 315 6.0 302
375 400 7.9 384.2

In Australia, the 90mm stormwater comes in grey, green or white. The green is the recycled product, and is becoming more common. The grey looks better, so it pays to ring ahead to see if it's in stock

If you a confident that you will only be building one speaker, you can buy short (1metre or 3m) lengths of some sizes from Bunnings.

If you have the merest suspicion that you might build others later, I would suggest you buy a full length (6m). Usually, the best place to buy it is from the trade desk of your local plumbers supplier, although the most recent lot of 6inch pipe would have been cheaper at the local hardware store, so shop around!

/pipe-sizes.htm last modified: 25 August 2019
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