20-gallon quiet compressor
Both are oil-free, quiet-series 20-gallon compressors, so they are tolerable in an attached garage. Pick on the sale, the warranty path and the noise rating you can live with.
Machine fit · Grizzly T32337
Will the Grizzly T32337 fit your garage?
The Grizzly T32337 measures 20 x 17 in (1.7 x 1.4 ft) and weighs 114 lb, runs on 120V at 13.5 A. It fits with operator room in 6 of our 6 garage sizes, the smallest being the 12x20 one-car, and it fits with a sedan parked inside from the 12x20 one-car up.
20 x 17 infootprint
114 lbship weight
120V13.5 A
2.5 HPmotor
From the grizzly.com listing: 5.6 SCFM at 90 PSI, 6.2 SCFM at 40 PSI, 175 PSI maximum, 20 gallon tank, 60 to 73 dB, base footprint 19-1/2 x 13.
Fit in each garage size
| Garage | Alone, operator room | Car parked, working | Car parked, stored | Share of floor |
|---|---|---|---|---|
| One-car, 12 x 20 | yes | yes | yes | 1% |
| One-car, 12 x 22 | yes | yes | yes | 1% |
| Two-car, 20 x 20 | yes | yes | yes | 1% |
| Two-car, 22 x 22 | yes | yes | yes | 0% |
| Two-car, 24 x 24 | yes | yes | yes | 0% |
| Three-car, 32 x 24 | yes | yes | yes | 0% |
"Operator room" keeps 12 in clear around the machine, and "stored" drops that zone, for a machine you roll out only when the car is gone. Both leave a 24 in apron in front of the overhead door and a 30 in walk-around beside any parked sedan.
Electrical and moving it
- Circuit: 13.5 A at 120V on the listing: a 20 A breaker and 12 AWG copper covers the 125 percent rule. On NEC Table 430.248 amps the same 2.5 HP motor comes to 45 A and 6 AWG on a 30 ft run. Have a licensed electrician confirm.
- Moving it: at 114 lb (shipping weight) a mobile base rated 150 lb or more is the minimum, for example the WEN Mobile Base.
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Moving and protecting it
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Frequently asked questions
Does the Grizzly T32337 fit in a one-car garage?
Yes, in a 12 x 20 ft one-car garage with no vehicle it fits with its operator zone clear and uses 1 percent of the floor. It also fits with a sedan parked inside.
What circuit does the Grizzly T32337 need?
It draws 13.5 A at 120V (listing), so a 20 A breaker with 12 AWG copper covers the 125 percent rule. On NEC table amps for 2.5 HP the circuit comes out to a 45 A breaker and 6 AWG copper over a 30 ft run. A licensed electrician confirms the circuit before you wire.
This page is researched guidance, not professional electrical, engineering or safety advice. Circuits, loads and clearances depend on your house, your service and your town: have a licensed electrician confirm any wiring, and check local code and each manufacturer's manual before you act.
