Size Guide
By The Case Place Team · Updated October 2026 · 6 min read
Pelican's Storm (iM-series) cases come in a lot of sizes, and the model numbers don't tell you much on their own. This chart puts the most popular Storm cases side by side with real interior dimensions. You can match a case to your gear in under a minute, and every model listed is one we currently stock.
TL;DR — Quick Answer
Measure your largest item, add about 1 inch per side for foam, then find the smallest Storm case below whose interior beats those numbers. For handheld kits, look at the iM2100 through iM2600. For rolling cases, the iM2750 is the all-rounder, and the iM2975 and iM3075 handle long or bulky loads.
Pelican Storm Case Sizes (Inches)
| Model | Interior (L x W x D) | Exterior (L x W x D) | Style | Good for |
|---|---|---|---|---|
| iM2100 | 13.00 x 9.20 x 6.00 | 14.20 x 11.40 x 6.50 | Handheld | Pistols, meters, small camera kits |
| iM2200 | 15.00 x 10.50 x 6.00 | 16.20 x 12.70 x 6.60 | Handheld | Two pistols, compact drones, radios |
| iM2300 | 17.00 x 11.70 x 6.20 | 18.20 x 13.90 x 6.70 | Handheld | Mirrorless kits, tools, test gear |
| iM2500 | 20.50 x 11.50 x 7.20 | 21.70 x 14.10 x 8.90 | Carry-on, wheels | Air travel, camera bodies + lenses |
| iM2600 | 20.00 x 14.00 x 7.70 | 21.20 x 16.00 x 8.30 | Handheld | Laptops + accessories, large drone kits |
| iM2750 | 22.00 x 17.00 x 12.70 | 24.60 x 19.70 x 14.40 | Rolling | Deep camera/lighting kits, medical, tools |
| iM2875 | 22.50 x 21.10 x 11.40 | 24.90 x 23.70 x 13.10 | Rolling | Wide, square loads, electronics |
| iM2975 | 29.00 x 18.00 x 13.80 | 31.30 x 20.40 x 15.50 | Rolling | Tripods, light stands, long tools |
| iM3075 | 29.80 x 20.80 x 17.80 | 33.30 x 24.40 x 19.30 | Rolling transport | Bulk gear, deployments, trade shows |
| iM3220 | 44.00 x 14.00 x 8.50 | 47.20 x 16.50 x 9.20 | Long, rolling | Rifles, tripods, survey poles |
Dimensions per Pelican's published specs. Depth is total interior depth (lid + base).
How to Read Storm Model Numbers
Storm models start with "iM" followed by four digits. Higher numbers generally mean bigger cases. The 21xx–26xx cases are handheld, 27xx–30xx are rolling cases, and 3100+ are long cases. The numbers don't correspond to inches, so always check the interior dimensions.
Most Popular Storm Sizes
Storm iM2750: The Do-Everything Rolling Case
With a 22 x 17 x 12.7 in interior, wheels and a telescoping handle, the iM2750 covers more jobs than any other Storm case. Read our full iM2750 review.
In Stock at The Case Place
$152 $288.95 list · Used, Grade A/B · Free shipping (lower 48)
Used, Grade A/B. Inspected, cleaned and fully functional, and one of our deepest-stocked Storm cases.
Shop the Pelican Storm iM2750 →Storm iM2500: The Carry-On
The iM2500 is Storm's answer to the Pelican 1510. Its 21.7 x 14.1 x 8.9 in exterior is built around common airline carry-on limits. See our Pelican carry-on guide.
In Stock at The Case Place
$169 $229.95 list · Used, Grade A/B · Free shipping (lower 48)
Rolling carry-on with Press & Pull latches, in green.
Shop the Pelican Storm iM2500 Carry-On →Storm iM3220: Long Case for Rifles and Tripods
A 44-inch interior with wheels makes the iM3220 a favorite for rifles, survey gear and light stands.
In Stock at The Case Place
Pelican Storm iM3220 Long Case
$189 $329.95 list · Used, Grade B/C · Free shipping (lower 48)
Used, Grade B/C, with foam. Heavier cosmetic wear, fully functional, with a 44 x 14 x 8.5 in interior for long gear.
Shop the Pelican Storm iM3220 Long Case →💡 Pro Tip: Storm and Protector cases with similar footprints often share foam inserts and accessories, but not always. Check the interior dimensions before ordering replacement foam.
Want to compare with the Protector line? See the Pelican Protector size chart or our Protector vs. Storm comparison.