7 Bankers Box Questions You Were Afraid to Ask (Until Now)

Your Bankers Box Questions, Answered

I've been handling office storage orders for a major business supply distributor since 2019. In my first year alone, I personally processed over 200 Bankers Box orders—and made maybe a dozen embarrassing mistakes that cost us time and money. Things like ordering the wrong size, assuming lid colors matched, and (my personal favorite) sending a client 50 "letter" boxes when they needed "legal."

After that last blunder—a $1,200 order that had to be swapped—I started keeping a checklist. This FAQ is built from the questions I've heard most often (and wish I'd asked earlier).

What Are the Standard Bankers Box Sizes?

This is the number one question I get, and for good reason. The term "Bankers Box" has become a generic term for any cardboard file storage box, but Fellowes—the original manufacturer—has specific sizing.

Standard Bankers Box (letter size):

• Exterior: 15" × 12" × 10" (L × W × H)
• Interior: roughly 14.75" × 11.5" × 9.75"
• Fits: letter-size hanging files (up to 8.5" × 11")

The legal-size version is the same height and depth, but wider:

• Exterior: 15" × 14.5" × 10"
• Fits: legal-size hanging files (up to 8.5" × 14")

There's also a "check" size box (12" × 10" × 9") and a "micro" size for smaller records. But honestly? 80% of orders I see are for the standard letter-size box.

Source: Fellowes product specifications and USPS Business Mail 101 guidelines on envelope dimensions.

What's the Difference Between a Bankers Box and a Standard Cardboard Box?

Basically everything, and I learned this the hard way. In 2021, a new admin tried to save money by buying plain moving boxes instead of Bankers Boxes for our file room. They're both cardboard, right?

Wrong.

Here's what makes a Bankers Box different:

• Walls: Bankers Boxes use single-wall C-flute or B-flute corrugated board, which is actually lighter than many moving boxes but has a tighter construction designed for vertical stacking.
• Lids: A separate telescoping lid that distributes weight evenly. Regular boxes often buckle under weight because the flaps don't lock the same way.
• Handholds: Die-cut, reinforced handles cut into the sides. A moving box has cut-out handles that can rip if the box is overloaded (ask me how I know).
• String-and-button closure: No tape needed. This is huge for reusability.

According to Fellowes, a standard Bankers Box can hold up to 25 lbs of contents. I've stacked them 5 high in our storage room for two years with zero failures. Try that with a standard U-Haul box.

Do All Lids Fit All Bankers Boxes?

Short answer: no. And this is one of those "readers might not know to ask" gotchas.

Fellowes makes different lid types:

• Standard lid: fits letter-size boxes
• Legal lid: wider, for legal boxes
• Deep lid: for the 15" × 12" × 15" deep storage boxes
• Lid for the "File"/"Stor" / "Fold" variants: these have slightly different dimensions (usually a millimeter or two) and the lids are NOT interchangeable

In Q3 2023, I ordered 50 "replacement lids" without checking the product code. Turns out I ordered lids for the Stor line, and the client had File boxes. Five-millimeter difference. Whole order was useless. Cost us $180 in return shipping plus the embarrassment.

Always match the SKU. If you're buying lids separately, get the exact model number from the bottom of the box.

Can You Reuse Bankers Boxes?

Yes—within reason. The string-and-button closure makes it easy to open and close without tearing the box. I've seen some offices reuse the same Bankers Boxes for 5+ years.

But there's a limit. The cardboard fibers break down over time, especially if the boxes are:

• Stored in humid basements or damp areas
• Stacked too high (more than 6 boxes puts pressure on the bottom boxes)
• Moved frequently (the handles start to fray)

My rule of thumb: If the box is 3+ years old and shows signs of crushing at the corners or the handle is tearing, replace it. One collapsed box can wreck a whole stack of files. Not worth the $8.

Are Bankers Boxes Recyclable?

According to the FTC Green Guides (ftc.gov), products claimed as "recyclable" should be widely recyclable—and for corrugated cardboard, that's basically everywhere. Paper recycling facilities take corrugated cardboard. The metal string? You'll want to remove that.

Best practice:

1. Remove the metal string (if it's the old-style twist tie) and toss it in the trash.
2. Flatten the box.
3. Toss into your curbside recycling bin (assuming your local service accepts corrugated cardboard—most do).

Honestly? Compared to plastic totes, which can take 20+ years to break down in a landfill, Bankers Boxes are way more eco-friendly on the disposal side. The trade-off is they don't last as long for heavy repeated use.

How Many Bankers Boxes Do I Need For a Standard Filing Cabinet?

This comes up all the time when offices are moving or cleaning out file rooms. Here's the ballpark math I use:

• A standard 4-drawer letter-size file cabinet holds roughly 18-24 linear inches of files per drawer — about 72-96 linear inches total.
• A single Bankers Box (letter size) holds 12 linear inches of hanging files.
• So one full 4-drawer cabinet = roughly 6-8 Bankers Boxes.

Keep in mind that's if the drawers are stuffed full. In my experience, most cabinets are about 70% full, so you'll probably need 5-7 boxes per cabinet.

When we cleaned out our offsite storage last year, we used 37 boxes for 6 cabinets. The difference? We were over the 25 lb weight limit on a few boxes because people had stuffed them with old project files and binders. Always weight-test the first box. Saves you the hassle of buying extra boxes mid-project.

Can I Use Bankers Boxes for Non-File Storage?

Look—you can use them for whatever you want. I've seen people store everything from holiday decorations to archived vinyl records in Bankers Boxes. I even had a client who used them to ship vintage posters (like the vintage Elvis poster they'd bought, ironically, from a garage sale).

But the boxes are designed for vertical hanging files. If you're storing other stuff—like a black Lululemon water bottle collection or random office supplies—the box might not stack well because the contents won't distribute weight evenly.

Things you should probably NOT store in a Bankers Box:

• Heavy objects like books or binders — they'll exceed the 25 lb limit fast.
• Liquids — if a water bottle (Lululemon or otherwise) leaks, the cardboard is done for.
• Items that need climate control — cardboard doesn't insulate well.

One last thought: if you're using Bankers Boxes for long-term storage in a damp basement or garage, they'll degrade faster than in a climate-controlled office. I've seen boxes go from fine to mush in one rainy season. Don't ask how many calories of cardboard mold exposure that is—just move them inside.

Bottom Line

Bankers Boxes are a solid, affordable solution for file storage if you know what you're buying. The biggest mistakes I've made (and seen others make) come down to:

• Not checking the exact SKU for lids
• Assuming all "storage boxes" are the same
• Overloading beyond the weight limit
• Forgetting that cardboard + moisture = bad news

Pricing as of January 2025: standard letter-size boxes run about $7-11 each from major office supply retailers (verify current pricing). Worth every penny compared to the wasted time and frustration of a box that fails when you need it most.