The FedEx Large Box comes in two versions: 17-1/2 x 12-3/8 x 3 inches (flat) and 11-1/4 x 8-3/4 x 7-3/4 inches (deeper). The FedEx Extra Large Box also comes in two: 11-7/8 x 11 x 10-3/4 inches (nearly a cube) and 15-3/4 x 14-1/8 x 6 inches. These are FedEx’s published dimensions for its free FedEx One Rate packaging.
Both boxes are small compared with the “extra large” name. The Extra Large Box holds about 1,400 cubic inches, roughly a 12-inch cube. Items that won’t fit need your own box, which FedEx prices by weight, dimensions and zone instead of One Rate.
What Are the FedEx Extra Large Box Dimensions?
| FedEx box | Dimensions (inches) | Cubic inches | Good for |
|---|---|---|---|
| Extra Large Box (cube) | 11-7/8 x 11 x 10-3/4 | about 1,404 | Shoes, small appliances, bulky items with a square footprint |
| Extra Large Box (wide) | 15-3/4 x 14-1/8 x 6 | about 1,335 | Folded clothing, binders, flat but wide items |
| Large Box (flat) | 17-1/2 x 12-3/8 x 3 | about 650 | Documents, framed prints, thin electronics |
| Large Box (deep) | 11-1/4 x 8-3/4 x 7-3/4 | about 763 | Boxed products, small parts, gifts |
| Medium Box | 13-1/4 x 11-1/2 x 2-3/8 or 11-1/4 x 8-3/4 x 4-3/8 | about 362 / 431 | Books, small apparel |
| Small Box | 12-3/8 x 10-7/8 x 1-1/2 or 11-1/4 x 8-3/4 x 2-5/8 | about 202 / 258 | Phones, accessories, paperwork |
| Extra Small Box | 7-1/4 x 4-11/16 x 2-1/2 | about 85 | Jewelry, cables, small parts |
| Tube | 38 x 6 x 6 | about 1,368 | Posters, plans, rolled art |
Each size has two versions, so check which one you have before you plan around it. A 14-inch item fits the wide Extra Large Box but not the cube. A 10-inch-tall item fits the cube but not the wide version. For the full lineup, including envelopes and Paks, see our guide to FedEx box sizes.
What Size Is a FedEx Large Box Compared With the Extra Large Box?
The Large Box is about half the volume of the Extra Large Box. Its flat version (17-1/2 x 12-3/8 x 3 inches) is the longest FedEx box apart from the Tube, which makes it the one to use for flat items up to about 17 inches long. Its deep version (11-1/4 x 8-3/4 x 7-3/4 inches) suits boxed products.
Pick the Large Box when the item fits, and step up to the Extra Large Box only when it doesn’t. Smaller packaging is quicker to pack, uses less fill and protects better, because the item can’t shift. Our page on the FedEx Large Box covers packing tips for that size.
How Much Weight Can a FedEx Extra Large Box Hold?
FedEx says FedEx One Rate boxes, Paks and tubes must weigh less than 50 pounds, and envelopes less than 10 pounds. A package over 50 pounds can still ship, but at standard FedEx rates based on dimensional weight and zone instead of One Rate. For a dense item close to the limit, add extra cushioning or use a sturdier box of your own.
Overstuffing changes how FedEx rates the package. FedEx says an envelope more than 3 inches thick or a Pak more than 5 inches thick on its shortest side is rated as a One Rate box based on its overall cubic volume. A box bulging past its printed size can likewise be re-measured.
Which FedEx Services Can You Use With an Extra Large Box?
FedEx supplies its branded boxes for FedEx Express shipping. FedEx One Rate, the flat-rate pricing these boxes are designed for, is available only for FedEx Express U.S. domestic services, and FedEx says FedEx Ground isn’t available with One Rate pricing.
| FedEx Express service | Delivery commitment (One Rate) |
|---|---|
| FedEx First Overnight | Next business day by 8 or 8:30 a.m. |
| FedEx Priority Overnight | Next business day by 10:30 a.m. |
| FedEx Standard Overnight | Next business day by 5 p.m. (by 8 p.m. to residences) |
| FedEx 2Day A.M. | Second business day by 10:30 a.m. |
| FedEx 2Day | Second business day by 5 p.m. (by 8 p.m. to residences) |
| FedEx Express Saver | Third business day by 5 p.m. |
FedEx notes some exceptions in its farthest zone. One Rate pricing depends on the packaging size, the destination zone and the delivery speed, not the weight, so the Extra Large Box makes sense for heavy, compact items going far and fast. Check current prices in FedEx’s own rate tool. If you’re shipping by Ground, use your own box; our comparison of FedEx Ground vs. Express explains the trade-offs, and whether FedEx delivers on Saturday covers weekend options.
How Does Dimensional Weight Apply to a FedEx Extra Large Box?
Outside One Rate, FedEx bills the greater of actual weight and dimensional weight. The cube-shaped Extra Large Box (about 1,404 cubic inches) has a dimensional weight of about 10 pounds at FedEx’s 139 divisor. That means a 3-pound item packed in it bills as roughly 10 pounds under standard rates.
That’s the reason to right-size: if an item fits the Large Box, it bills at roughly half the dimensional weight. For anything bigger than the Extra Large Box, custom packaging or FedEx custom boxes sized to the item usually beat oversize cartons stuffed with fill.
What If Your Item Doesn’t Fit the FedEx Extra Large Box?
Use your own box and ship it at standard rates. Keep in mind the larger-package thresholds that come with bigger cartons; our guide to FedEx oversize dimensions lists the limits. For things that don’t fit in any box, such as furniture, rugs or equipment, see our methods for shipping a large item without a box.
Heavy or palletized shipments are freight, not parcels. Our LTL freight and logistics guide explains less-than-truckload shipping, and our guide to FedEx Freight rates covers how FedEx prices pallets. ParcelPath’s PalletPath quotes LTL freight in the ParcelPath freight quote tool.
How Do You Pack and Label a FedEx Extra Large Box?
- Choose the right version. Measure the item and pick the cube or the wide Extra Large Box, whichever leaves about 2 inches for cushioning.
- Cushion all sides. FedEx says internal packing materials aren’t included with One Rate packaging, so supply bubble wrap, foam or crumpled paper yourself.
- Fill the voids. Contents shouldn’t move when you shake the box.
- Seal with packing tape. Use the H-taping method across the center seam and edges.
- Create and attach the label. Select FedEx packaging (and One Rate, if you’re using it) when you create the shipment. Our guide on how to create a FedEx label walks through the steps, and FedEx labels and supplies covers ordering free boxes.
After the box ships, use the tracking number to follow it; our FedEx tracking and delivery guide explains scan events. If a delivery attempt fails, the driver leaves a notice; see what a FedEx door tag means and how to reschedule.
Are There Alternatives to the FedEx Extra Large Box?
Yes. If you’re open to UPS or USPS instead, ParcelPath offers up to 85% off UPS and up to 89% off USPS, free, with no subscription or per-label fee. You can ship a box of similar size in your own packaging with UPS Ground or USPS Ground Advantage, or use USPS Priority Mail Flat Rate boxes for heavy, compact items. Compare your box’s dimensions and weight in the ParcelPath rate calculator.
For a broader look at carriers, our roundup of the best shipping services and solutions compares options, and the FedEx shipping hub covers FedEx rates, tracking and services.
Frequently Asked Questions
What are the FedEx Extra Large Box dimensions?
FedEx lists two Extra Large Boxes: 11-7/8 x 11 x 10-3/4 inches, which is nearly a cube, and 15-3/4 x 14-1/8 x 6 inches, which is wider and shallower. Each holds about 1,300 to 1,400 cubic inches. They’re free FedEx One Rate packaging, limited to less than 50 pounds for One Rate pricing.
What size is a FedEx Large Box?
The FedEx Large Box comes in two versions: 17-1/2 x 12-3/8 x 3 inches, a long, flat box for documents and thin items, and 11-1/4 x 8-3/4 x 7-3/4 inches, a deeper box for boxed products. Either one holds about 650 to 760 cubic inches, roughly half the volume of the Extra Large Box.
Can I use a FedEx Extra Large Box for FedEx Ground?
FedEx supplies its branded boxes for FedEx Express shipping, and FedEx says One Rate pricing isn’t available with FedEx Ground; it covers FedEx Express U.S. domestic services only. For a Ground shipment, pack the item in your own box and ship it at standard rates based on weight, dimensions and zone.
How much weight can a FedEx Extra Large Box hold?
For FedEx One Rate, boxes must weigh less than 50 pounds; envelopes must weigh less than 10 pounds. Heavier packages ship at standard FedEx rates based on dimensional weight and zone instead. For dense items close to the limit, add extra cushioning or use a sturdier box of your own.
Sources
- FedEx One Rate: packaging dimensions, weight limits, eligible services and FAQs
- FedEx rate tool (FedEx Rate Finder)
Part of our FedEx Box Sizes and Prices guide. Related: FedEx Oversize Dimensions, FedEx Labels and Supplies, FedEx Custom Boxes.
