Generator Enclosure FAQ

The Generator Box measures 42″ wide × 33″ deep × 30″ tall on the outside. The usable space inside is slightly smaller, so measure your generator’s full length, width and height, including handles, wheels and fuel cap, and leave room around it for airflow. It holds most portable generators up to about 12,000 watts. For example, a Westinghouse iGen5000 (about 24.5″ × 17.5″ × 20″) fits with room to spare, a Predator 9500 inverter (about 31″ × 23.75″ × 28.87″) fits with roughly an inch of clearance on top, and a DuroMax XP12000EH with its wheel kit (about 40″ × 29″ × 27.5″) squeezes in as a very tight fit. If you’re not sure, call (203) 267-1000 or send us your generator’s make and model and we’ll check the fit before you order.

Yes. That’s what the fold-out side air windows are for, and they must be open whenever the generator is running. Keep the enclosure outdoors, well away from doors, windows and vents, with the exhaust pointed away from the house. Follow your generator manufacturer’s instructions and keep working carbon monoxide alarms inside your home.

No. Aluminum doesn’t rust the way steel does. The Generator Box is built from .080″ aluminum with a white textured powder coat, so it holds up to rain, snow and road salt year after year. Galvanized steel enclosures rely on their coating, and once it’s scratched or cut the steel underneath can rust.

The Generator Box is $1,195 plus a flat $150 for FedEx delivery anywhere in the continental U.S. The box weighs 85 lbs.

Yes. The lid latch takes a standard padlock (padlock not included). The base also has four mounting holes, so you can lag it into a concrete pad or pavers. Once it’s locked and bolted down, wind can’t move it and it’s much harder to steal.

Lift the hinged lid. It gives you access to fill the tank where the generator sits. Always shut the generator off and let it cool before refueling.

An enclosure blocks some noise, but The Generator Box isn’t sold as a soundproof or sound-rated box. The side air windows have to be open while the generator runs, so some sound gets out. For the quietest setup, pair it with an inverter generator and place it as far from living spaces as safety guidelines allow.

It depends on how you use your generator. Tents and running covers are light and inexpensive, but you set them up during a storm and take them down afterward. The Generator Box is a permanent, bolt-down enclosure. The generator stays inside it all year, protected from the weather and ready to start. See our box vs. tent vs. shed comparison.

Use a level, solid surface such as a concrete pad or well-compacted pavers that’s a little larger than the box. A firm base keeps the enclosure square, gives the lag bolts something to grip and keeps the generator out of standing water.

Every Generator Box is fabricated by Microfab Company LLC, a sheet metal fabrication shop at 339 Christian Street in Oxford, Connecticut.

The Generator Box comes standard in a white textured powder coat. We can powder coat almost any color, but custom colors cost extra and are quoted separately. Microfab is a full-service sheet metal shop, so custom sizes for larger generators, pool equipment or compressors can often be quoted too. Call (203) 267-1000 or use our contact form to tell us what you need.

The Generator Box doesn’t come with a written warranty. If your box arrives damaged, we’ll replace it with a new one. Note the damage on the delivery receipt, take photos and contact us right away.

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