What FedEx packaging is

What FedEx Packaging Is

FedEx packaging is FedEx's own range of envelopes, paks, boxes and tubes for FedEx Express shipments. Some of it changes how a shipment is priced: the FedEx Envelope and FedEx Pak have their own rows in FedEx's Canadian rate charts, and the 10kg and 25kg boxes carry one rate per destination zone, whatever they weigh up to their limit, on international shipments. That is FedEx Canada's version of flat-rate shipping; the U.S. One Rate program does not appear in either Canadian guide.

2.2 lb Pak rate limit
1 lb Envelope rate limit
$500 max value in an Envelope or Pak

Each piece of packaging comes with limits, on weight, on value and on what can go inside, and going over one changes how the shipment is billed or breaks FedEx's terms. This page gives you the sizes and then the rules. For how a normal FedEx price is built, see our FedEx Shipping Rates guide.

Source: FedEx Express Rates, Canadian Edition, effective 5 Jan 2026

FedEx Envelope and FedEx Pak

FedEx Envelope and FedEx Pak

FedEx states that its Envelope and Pak are "designed to contain documents or flat, non-fragile material only". Watch the special-rate column: going over it changes how the shipment is billed.

PackagingInside sizeMax weightSpecial rate up toNotes
FedEx Envelope (legal size, reusable)9.5 x 15.5 in (24.1 x 39.4 cm)Not stated1 lb (0.5 kg)Documents and flat, non-fragile items; designed to be used twice
FedEx Envelope without pouch9.5 x 12.5 in (24.1 x 31.8 cm)Not stated1 lb (0.5 kg)For FedEx Ship Manager thermal labels
FedEx Pak (reusable)12 x 15.5 in (30.5 x 39.4 cm)20 lb (9.1 kg)2.2 lb (1 kg)Documents and flat, non-fragile items
FedEx Padded Pak (reusable)11.75 x 14.75 in (29.8 x 37.5 cm)20 lb (9.1 kg)2.2 lb (1 kg)Bubble padded; same content rules as the Pak

A FedEx Pak holds up to 20 lb, but its rate stops at 2.2 lb. Within Canada, a Pak over 2.2 lb (1 kg) is billed by weight at Priority Overnight rates, and an Envelope over 1 lb (0.5 kg), including its contents and air waybill, is billed the same way. Internationally, an Envelope over 1 lb is billed at the International Priority Express, International Priority or Pak rate, and the Pak rate applies up to 2.2 lb to the U.S., Europe and the Far East only; to everywhere else a Pak is always billed by weight. Heavier contents are rated to the next whole pound. The thresholds are in the FedEx Service Guide.

For diagnostic specimens, FedEx also lists a Clinical Pak and a UN 3373 Pak (12 x 16.5 in, 20 lb).

Source: FedEx Canada, Learn to Pack and Order Supplies

FedEx box sizes in Canada

FedEx Box Sizes in Canada

Three box sizes and a tube, for FedEx Express within Canada and internationally. FedEx's rate guide lists no special rate for them: they are billed by weight, with a minimum.

PackagingInside sizeMax weightSpecial rate up toNotes
FedEx Small Box12.25 x 10.9 x 1.5 in (31.1 x 27.7 x 3.8 cm)20 lb (9.1 kg)None listed, billed by weightBilled at 2 lb (1 kg) minimum
FedEx Medium Box13.25 x 11.5 x 2.38 in (33.7 x 29.2 x 6.0 cm)20 lb (9.1 kg)None listed, billed by weightBilled at 2 lb (1 kg) minimum
FedEx Large Box17.56 x 12.38 x 3 in (44.6 x 31.5 x 7.6 cm)30 lb (13.6 kg)None listed, billed by weightBilled at 2 lb (1 kg) minimum
FedEx Tube38 x 6 x 6 in (96.5 x 15.2 x 15.2 cm)20 lb (9.1 kg)None listed, billed by weightBilled at 7 lb (3 kg) minimum within Canada, 9 lb (4 kg) internationally

FedEx boxes and tubes are not accepted on FedEx Economy. To ship on Economy, use your own box. The minimums matter for light items too: a few ounces in a FedEx Tube is billed as 7 lb within Canada, per FedEx's rate guide. There is no Extra Large FedEx Box in Canada; that is a U.S. product.

Source: FedEx Canada, Learn to Pack and Order Supplies

FedEx 10kg and 25kg boxes

International Flat-Rate Boxes: 10kg and 25kg

For shipments leaving Canada, FedEx offers two boxes priced at one rate per destination zone up to their weight limit, for FedEx International Priority shipments. They are not available for shipments within Canada.

PackagingInside sizeMax weightSpecial rate up toNotes
FedEx 10kg Box15.81 x 12.94 x 10.19 in (40.2 x 32.8 x 25.9 cm)22 lb (10 kg)22 lb (10 kg)One rate per destination zone
FedEx 25kg Box21.56 x 15.56 x 13.19 in (54.8 x 39.5 x 33.5 cm)56 lb (25 kg)56 lb (25 kg)One rate per destination zone

A fixed price is not automatically a good price. A box filled close to its weight limit gets the most out of the rate, while a light item in a 25kg Box pays for weight it does not use. Customs still applies on top, covered in our FedEx Customs & Duties guide.

Source: FedEx Canada, Learn to Pack and Order Supplies

Rules for using FedEx packaging

Rules for Using FedEx Packaging

Four rules decide whether FedEx's packaging is the right choice:

  • Envelopes and Paks are for documents and flat, non-fragile items. FedEx states they "should not be used for other goods which may be susceptible to damage".
  • Keep goods worth more than $500 out of an Envelope or Pak. FedEx caps the declared value for customs at $500 and says goods with a value over $500 "should not be shipped" in them. The declared value for carriage is capped at $100 within Canada, and internationally at the greater of $100 or the Convention liability limit.
  • One per air waybill, in the real packaging. Envelope, Pak, 10kg Box and 25kg Box shipments must use the actual FedEx packaging, and only one can go on a single air waybill.
  • No dangerous goods. Dangerous goods cannot go in any FedEx Envelope, Pak, Box, Tube, 10kg Box or 25kg Box. The one exception is permitted IATA Section II lithium batteries in FedEx boxes and tubes.

So if the contents are worth more than $500, or could break, an Envelope or Pak is the wrong choice. Use your own box and declare the value instead: within Canada, the declared value for carriage can go up to $50,000 ($100,000 on 1Day Freight), for a fee listed in our FedEx surcharges list. FedEx states it does not provide insurance of any kind, so declared value limits what FedEx will pay. The terms are in the FedEx Service Guide.

Source: FedEx Service Guide, Canadian Edition, effective 11 Sep 2026

FedEx weight limits by packaging

FedEx Weight Limits by Packaging

FedEx's weight limit is 150 lb (68 kg) per package on both FedEx Express and FedEx Ground, except that FedEx Ground stops at 70 lb (32 kg) for Newfoundland and Labrador and the territories. FedEx's own packaging holds much less, between 20 lb and 56 lb depending on the item, as the tables above show, so anything heavy belongs in your own box. Size limits for your own box are in our FedEx Canada guide.

Source: FedEx Express Rates, Canadian Edition, effective 5 Jan 2026

Where to get FedEx packaging

Where to Get FedEx Packaging, and When Your Own Box Is Better

FedEx lists its packaging and supplies at fedex.ca/packaging. Its own packaging pays off in two cases: documents and light, flat items that stay under the Envelope or Pak rate limits, and international shipments that fill a 10kg or 25kg Box. For anything heavier, bulkier, fragile, valuable or on FedEx Economy, your own box is the better fit, and then the price comes down to weight, size and route. Compare FedEx with other carriers for your parcel before you book.

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More FedEx Guides

FedEx shipping in Canada

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FedEx services in Canada

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FedEx surcharges and fees

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FedEx shipping alternatives

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Frequently Asked Questions About FedEx Packaging

What is a FedEx Pak?

A reusable FedEx shipping pack for FedEx Express shipments, which FedEx says is for documents or flat, non-fragile material only. The standard Pak measures 12 x 15.5 in (30.5 x 39.4 cm) inside, and there is also a bubble-padded version. Within Canada it gets FedEx's special Pak rate up to 2.2 lb (1 kg); above that it is billed by weight.


How much can a FedEx Pak hold?

Up to 20 lb (9.1 kg), but only the first 2.2 lb (1 kg) gets the Pak rate within Canada. A heavier Pak is billed by weight at Priority Overnight rates, and internationally the Pak rate applies only to the U.S., Europe and the Far East.


What size is a FedEx Envelope?

The reusable legal-size FedEx Envelope measures 9.5 x 15.5 in (24.1 x 39.4 cm) inside, and the version without a pouch, for thermal labels, measures 9.5 x 12.5 in (24.1 x 31.8 cm). It gets FedEx's special Envelope rate up to 1 lb (0.5 kg), counting the contents and air waybill. Above that it is billed at the Priority Overnight rate within Canada, or at the International Priority Express, International Priority or Pak rate internationally.


What is the FedEx weight limit?

150 lb (68 kg) per package on both FedEx Express and FedEx Ground, except that FedEx Ground stops at 70 lb (32 kg) for Newfoundland and Labrador and the territories. FedEx's own packaging holds less: 20 lb for a Pak, Small Box, Medium Box or Tube, and 30 lb for the Large Box. Above 150 lb, a shipment is freight rather than a package.


Is there a FedEx Extra Large Box in Canada?

No. FedEx's 2026 Canadian rate guide lists the Small, Medium and Large FedEx Box and the FedEx Tube, plus the 10kg and 25kg boxes for international shipments. The Extra Large Box, like the One Rate program, is a U.S. offer. Within Canada, for anything bigger than the Large Box, use your own box.


Can I ship valuables in a FedEx Envelope?

Not above $500. FedEx caps the declared value for customs on an Envelope or Pak at $500 and states that goods worth more "should not be shipped" in one, and the declared value for carriage is capped at $100 within Canada. Ship valuables in your own box and declare their value, keeping in mind that FedEx states it does not provide insurance of any kind.


Can I use FedEx boxes with FedEx Economy?

No. FedEx states its boxes are not accepted on FedEx Economy, and the same applies to the FedEx Tube. To ship on Economy, use your own box. Our FedEx Services guide compares the Express services.


Sources

All packaging details on this page are sourced from official FedEx documentation. Last updated: October 29, 2026.

  • FedEx Canada, Learn to Pack and Order Supplies, FedEx Express supplies. fedex.ca
  • FedEx Service Guide, Canadian Edition, effective 11 September 2026. fedex.com
  • FedEx Express Rates, Canadian Edition, effective 5 January 2026. fedex.com