The Best Air Compressor for Coil Nailers
For a single coil roofing or siding nailer, a 6-gallon pancake compressor (delivering ~2.5–4 CFM at 90 PSI) is all you need. Running two guns, or nailing nonstop, calls for a larger wheelbarrow or twin-tank unit with more CFM. The number that matters is CFM, not tank size.
What coil nailers actually need
Coil roofing and siding nailers run at roughly 90–120 PSI and, because they fire in bursts, don't demand huge airflow. A quality pancake compressor keeps up with one gun easily. The trap people fall into is buying by tank size — what really matters is CFM (airflow) at 90 PSI, plus how fast the pump recovers between bursts.
How to size it
| Setup | What to get |
|---|---|
| One coil nailer, DIY / small jobs | 6-gal pancake, ~2.5–4 CFM @ 90 PSI |
| One nailer, all-day / production | Hot-dog or larger pancake with faster recovery |
| Two guns / a crew | Wheelbarrow or twin-tank, higher CFM |
| Noise-sensitive (occupied homes) | A quiet compressor (e.g., California Air Tools) |
Top picks
- Best overall (one gun): a name-brand 6-gallon pancake (Bostitch, DeWalt, Metabo HPT) — cheap, portable, and plenty for a roofing or siding nailer.
- Best quiet: California Air Tools ultra-quiet models — a fraction of the noise, great for occupied homes.
- Best for a crew: a wheelbarrow or twin-tank with higher CFM to feed two guns without starving them.
Hose and fittings
For roofing, a longer hose (50 ft+) saves moving the compressor around the roof; a lightweight hybrid or PVC hose is easier to drag. Keep quick-connect fittings and a little pneumatic oil on hand if your gun needs it.
Frequently asked questions
What size compressor for a roofing nailer?
A 6-gallon pancake (~2.5–4 CFM at 90 PSI) runs one roofing nailer fine. Add CFM if you run two guns.
How many CFM does a coil nailer need?
Not much — they fire in bursts. Aim for a compressor rated around 2.5+ CFM at 90 PSI per gun, with good recovery.
Can one compressor run two nailers?
Only if it has the CFM for it — step up to a wheelbarrow or twin-tank unit for two guns.