When in doubt, check with the nailer manufacturer to make sure your compressor is right for your nailer.
What are the specs for the minimum compressor needed to run a flooring nailer? Would a "hot dog" compressor work?
Stephen Diggins, manager and training director at the Salem, N.H., branch of Wood Pro Inc., answers:
The technical specification for a standard wood floor nailer would call for a 3⁄8-inch hose to consistently produce approximately 75–90 psi (yes, a lot of wood floor guys use 1⁄4-inch fittings and hose because it's lighter, but that isn't recommended because of the backflow it creates). The psi also depends on the species of wood, as well as the model and condition of the nailer—if your nailer is old and grungy and full of gunk, it's going to need more psi! A finish nailer should produce a constant 100–120 psi, although that also depends on the tool and the species.
The baseline compressor most wood flooring pros need is a 6-gallon, 1-hp compressor. That or anything larger will be fine, and it doesn't matter what the style of it is: pancake, twin side, etc. Roofers need a specific compressor because it can't fall off a roof, but it doesn't matter when you're doing a floor.
I think when most pros hear the term "hot dog compressor" they are thinking of a ½-hp, 1-gallon portable air compressor. In my opinion, that would be light for flooring and would likely burn out quickly—with a flooring gun, it would never stop running! The small hot dog is better suited for putting air in your tires or blowing dust out of your equipment.
A small hot dog compressor will cost you about $85. Most 6-gallon units run about $99, so it's a no-brainer to spend a little bit more money to get the bigger size. They last a long time; I have two I've had for probably 25 years with no trouble.
The bottom line: Use the nailer manufacturer's specs and, when in doubt, call their toll-free number and ask for their technical service department. They can supply all the details for your equipment package needs.
