The Generator Box — Portable Generator Enclosure
$1,295.00
Rust-proof aluminum portable generator enclosure. 42″W x 33″D x 30″H, 85 lbs. Bolt it down once, leave it outside for good.
- .080" aluminum with white textured powder coat. It will never rust.
- Fits most portable generators up to ~12,000W
- Hinged lid for refueling in place
- Fold-out side air windows for ventilation while running
- Locks with a padlock (padlock not included)
- Four lag-down holes for concrete or pavers
- Fabricated by Microfab in Oxford, CT
Ships within 5 business days · Delivered in 10–15 business days via FedEx Ground (lower 48 states)
Shipping: Flat-rate $150 FedEx Ground to the lower 48 states. Alaska and Hawaii: call for a quote.
Arrives damaged? Photograph the box before opening it and we'll replace any damaged panel at no cost.
Custom color? White is standard. Other colors are quoted separately.
Not sure it fits? Call (203) 267-1000 or send us your generator model.
A generator box built to live outside
The Generator Box gives your portable generator a permanent, weather-tight home on your pad, so you never have to drag it out of the garage in a storm again. It's formed from heavy .080" aluminum and finished in a white textured powder coat, so it will never rust.
- Hinged lid: lift it to refuel and reach the controls where the generator sits.
- Fold-out side air windows: louvered side panels open for ventilation and cooling. They must be open whenever the generator runs.
- Lockable: the latch takes a standard padlock (not included).
- 4-point lag-down base: anchor it to concrete or pavers so it stays put.
- White textured powder coat: custom colors are available and quoted separately.
- Made in Connecticut by Microfab Company LLC.
Shipping & arrival
$1,295 plus a flat $150 for FedEx Ground delivery to the lower 48 states. It ships within 5 business days and arrives in 10–15 business days. Alaska and Hawaii: call (203) 267-1000 for a shipping quote. The box weighs 85 lbs. If your box arrives damaged, photograph the shipping box before you open it and we'll replace any damaged panel at no cost.
Safety: Run generators outdoors only, away from doors, windows and vents, with the exhaust pointed away from the home. Always open the side air windows before starting, and keep CO alarms in your home.
| Material | .080" thick aluminum |
|---|---|
| Finish | White textured powder coat (custom colors quoted separately) |
| Outside dimensions | 42" W × 33" D × 30" H |
| Weight | 85 lbs |
| Generator capacity | Most portable generators up to ~12,000W (see fit guide) |
| Fuel access | Hinged lid |
| Ventilation | Fold-out louvered side air windows (must be open while running) |
| Security | Locks with a padlock (not included) + bolt-down base |
| Mounting | 4 base holes to lag into concrete or pavers |
| Made in | Oxford, Connecticut, USA |
| Arrival guarantee | Arrives damaged? Photograph the box before opening it and we'll replace any damaged panel at no cost. |
| Shipping | $150 flat rate via FedEx |
| Price | $1,295 + $150 shipping (lower 48 states) |
| Generator class | Example model | Approx. size | Fit |
|---|---|---|---|
| Medium inverter (3,000–5,000W) | Westinghouse iGen5000 | 24.5" L × 17.5" W × 20" H | Fits with room to spare |
| Large inverter (7,000–9,500W) | Predator 9500 | 31" L × 23.75" W × 28.87" H | Fits (about 1" clearance on top) |
| Open-frame (7,000W running / 9,000W starting) | Champion 9000W (shown in our photos) | Open frame with wheel kit | Fits |
| Large open-frame (7,500–12,000W) | DuroMax XP12000EH | 40" L × 29" W × 27.5" H (with wheel kit) | Squeezes in — very tight fit |
Outside dimensions: 42" W × 33" D × 30" H. Not sure? Send us your model or call (203) 267-1000.
What size generator fits in The Generator Box?
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.
Can I run my generator while it is inside the enclosure?
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.
Will an aluminum generator box rust?
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.
How much does The Generator Box cost, and how much is shipping?
The Generator Box is $1,295 plus a flat $150 for FedEx Ground delivery to the lower 48 states. It ships within 5 business days and arrives in 10–15 business days. Shipping to Alaska and Hawaii costs extra, so call (203) 267-1000 for a quote before ordering. The box weighs 85 lbs.
Does The Generator Box lock?
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.
How do I refuel without removing the generator?
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.
Run it outdoors, with the windows open
Fold out the side air windows every time the generator runs. Keep the box outdoors, well away from doors, windows and vents, and keep CO alarms in the home. Generator safety guide →