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Hole saw size for pipe
The hole saw to bore for each pipe size through studs, joists and plates, from the pipe's outside diameter plus about 1/8″ of room.
Go bigger for hubs, slope through a run of joists, or insulation. Check the framing rules before boring structural members.
Verify with your local code and AHJ. Reference only, no warranty.
PVC & ABS Sch 40
| OD, in | Hole saw | |
|---|---|---|
| 1 1/4″ | 1.660 | 2″ |
| 1 1/2″ | 1.900 | 2 1/4″ |
| 2″ | 2.375 | 2 3/4″ |
| 2 1/2″ | 2.875 | 3 1/4″ |
| 3″ | 3.500 | 3 3/4″ |
| 4″ | 4.500 | 4 3/4″ |
| 6″ | 6.625 | 7″ |
Copper & PEX
| OD, in | Hole saw | |
|---|---|---|
| 1/2″ | 0.625 | 7/8″ |
| 3/4″ | 0.875 | 1 1/8″ |
| 1″ | 1.125 | 1 3/8″ |
| 1 1/4″ | 1.375 | 1 5/8″ |
| 1 1/2″ | 1.625 | 2″ |
| 2″ | 2.125 | 2 1/2″ |
About 1/8″ around the pipe. Go bigger for hubs, slope or insulation.
Open this sheet in the toolkitQuestions
What size hole saw for 2 inch PVC?
2 3/4″ for Schedule 40 (OD 2.375″).
What size hole for 3 inch PVC?
A 3 3/4″ hole saw for Schedule 40 (OD 3.500″).
What hole saw for 1/2 inch PEX or copper?
A 7/8″ hole saw (OD 0.625″).