Size and weight restrictions

Each item must meet the following size and weight specifications.

Documents (Priority, Xpresspost, Expedited Parcel, Regular Parcel)

Requirement Minimum Maximum
Length
140 mm
5.5 inches
380 mm
15 inches
Width
90 mm
3.5 inches
270 mm
10.6 inches
Height
1 mm
0.039 inches
20 mm
0.79 inches
Length + girth 1
Not applicable
Not applicable
Not applicable
Not applicable
Weight 2
50 g
0.1 pounds
1.36 kg
3 pounds

1 Girth is (height x 2) + (width x 2)

 

2 Individual items deposited weighing over 22.7 kg (50 pounds) must bear an overweight parcels sticker (33-086-456).

 

For an odd-shaped non-rectangular item, we take measurements at the widest points.

 

Weight and measurement are governed by the Weights and Measures Act and Regulations and its Terms and Conditions. Visit the Measurement Canada website for details.

Parcels (Priority, Xpresspost, Expedited Parcel, Regular Parcel)

Requirement Minimum Maximum
Length
230 mm
9.1 inches
2 m
78.7 inches
Width
200 mm
7.9 inches
2 m
78.7 inches
Height
25 mm
1 inch
2 m
78.7 inches
Length + girth 1
Exceeds the maximum dimension or weight of a packet
Exceeds the maximum dimension or weight of a packet
3 m
118 inches
Weight 2
100 g
0.2 pounds

30 kg

66 pounds

1 Girth is (height x 2) + (width x 2)

 

2 Individual items deposited weighing over 22.7 kg (50 pounds) must bear an Overweight Parcels sticker (33-086-456).

 

For an odd-shaped non-rectangular item, we take measurements at the widest points.

 

Weight and measurement are governed by the Weights and Measures Act and Regulations and its terms and conditions. Visit the Measurement Canada website for details.

Mailing tube (Priority, Xpresspost, Expedited Parcel, Regular Parcel)

We’ll apply a surcharge to mailing tubes that are cylindrical.

Requirement Minimum Maximum
Size
100 mm x 23 mm x 23 mm
3.9 inches x 0.9 inches x 0.9 inches
2 m x 2 m x 2 m
78.7 inches x 78.7 inches x 78.7 inches
Length + girth 1

Exceeds the maximum dimension or weight of a packet 

Exceeds the maximum dimension or weight of a packet
3 m
118 inches
Weight
50 g
0.1 pounds
30 kg
66 pounds

1 Girth is (height x 2) + (width x 2)

Oversize items

We’ll apply a surcharge to all Oversize items.

We consider an item Oversize if it:

  • Has any dimension exceeding 1 m (39.4 inches)

or

  • Measures more than 76 cm (30 inches) along its second longest side

Out-of-spec surcharge

We consider an item out-of-spec if it exceeds the maximum size or weight specifications in any of the above tables.

We’ll apply a surcharge to an out-of-spec item. At any point, we may refuse the item or return it to the shipper. We may deliver the item at our sole discretion and we may apply extra fees.

Prepaid products

You must order prepaid labels in advance, as we need to overprint them with your name and address. Prepaid labels are only available to customers who have signed a Standing Offer Agreement for prepaid products.

You can’t use prepaid labels on:

  • Oversize or unpackaged items
  • Items to air stage offices
  • Items to the Nunavut, Northwest Territories, or Yukon regions

Priority envelopes (rigid paper) maximum requirements 

Requirement Medium Large
Length 318 mm 394 mm
Width 241 mm 314 mm
Thickness 15 mm 30 mm
Weight 500 g 1 kg

Xpresspost envelopes (rigid paper) maximum requirements

 Requirement Small Medium Large

Length

260 mm 318 mm 394 mm
Width 159 mm 241 mm 314 mm
Thickness 15 mm 15 mm 30 mm
Weight 500 g 500 g 1 kg

Value packs are available for Xpresspost™ service. A value pack includes a discount (sold in bundles of four) and is available in small and medium size.

Xpresspost bubble (plastic) envelopes maximum requirements

Requirement Small Large
Length 247 mm 400 mm
Width 190 mm 292 mm
Weight 500 g 1.36 kg

Xpresspost Certified maximum requirements

Requirement Small

Length

260 mm
Width 159 mm
Thickness 15 mm

Weight

500 g

Flat rate box maximum requirements

Flat rate boxes are available at post offices. You can also buy them online. No discount is available for this product.

Requirement Small Medium Large
Length 35 cm 39 cm 40 cm
Width 26 cm 26 cm 30 cm
Height 5 cm 12 cm 19 cm
Weight 5 kg 5 kg 5 kg

How to order prepaid envelopes and labels

There are three ways to order prepaid envelopes and labels (minimum order quantities apply):

  • Online (envelopes only) (www.canadapost.ca/shop)
  • Call customer service at 1-866-607-6301
  • Contact a Canada Post sales representative

Purchasing flat rate boxes

There are two ways to buy flat rate boxes:

  • At a post office
  • Online (minimum order quantities apply)

Please note: No discount is available for this product.