Sendle parcel sizes and weights

Choosing the right size option for your parcel will ensure there are no hiccups along the way. And we can show you how!

This article has all the information you need to master the Sendle booking process, how to choose the right size for your parcel and how the shipping cost is calculated.

Size calculation

Sendle has five general parcel sizes to slot your shipment into. Think of each as a size ceiling that your parcel must fit under to qualify. Using weight and volume, you can easily find the parcel size that’s right for your shipment.

You need to choose a size that is under both the weight and volume limit. Here are the current Sendle size options:

  • Envelope (<0.5 lb)
  • Pouch (<1 lb)
  • Small Box (<5 lb and <¾ gal)
  • Medium Box (<10 lb and <2¼ gal)
  • Large Box (<20 lb and <3¾ gal)

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Maximum sizes

  • The maximum combined length and circumference of any parcel is 108”
  • The largest standard-sized parcel is 20 lb and up to 3¾ gal
  • Sendle can deliver parcels of up to 70 lb and 52 gallons

Examples

Both of these fit under the weight and volume limit for a 20 lb and 3¾ gallon large box size parcel:

  • 12” x 12” x 8” (3⅓ gal) + 18 lb
  • 10” x 6” x 2” (½ gal) + 11 lb

Neither of the following parcels fit into the 20 lb and 3¾ gal size parcel. Either the weight or the volume exceeds the parcel limits:

  • 10” x 10” x 8” (3½ gal) + 25 lb = too heavy
  • 14” x 14” x 10” (8½ gal) + 5 lb = too large

How to calculate volume: 

Volume is calculated as a cube (like a box). We represent this volume in gallons. Find your volume in gallons by first finding your box’s cubic inch volume. Calculator in hand, multiply your box length by width by height in inches to get the cubic inch volume. Now, divide your cubic inches by 231 to get your volume in gallons. Voila! Volume!

Mailing tubes/cylinder-shaped parcels

Mailing tubes, or any parcel that is cylinder-shaped, are charged on the same basis as all Sendle parcels—that is, we need to consider both the weight (in pounds) and the volume (in gallons). 

  • To find the volume of a cylinder is a bit more complicated than your standard box. In equation form that looks like V=𝝅r2h. If that’s your thing, have at it.
  • To make your life easier, let us Google that for you (or use this handy calculator). On the other side, you can simply enter your radius (half your diameter) and the cylinder height to get your cubic inch volume. Much nicer than whatever math lecture we would have put you through.
  • Finally, take those cubic inches and divide by 231 to get your volume in gallons. Or, if you are using the Omni calculator, just choose US gallons as the volume measure.

Here’s an example: A tube that is 40 inches long and a radius of 5 inches would come to approximately 3,142 cubic inches. Dividing that by 231 gives us 13.6 gallons, a volume far larger than our standard sizes allow. 

Parcel restrictions

  • In addition to the gallon volume, weight must also be considered when selecting the right parcel size. For example, if the tube has a volume of under 2 gallons and weighs under 10 lb, it must be booked as a Medium Box size (<10 lb and <2¼ gal).
  • All standard-sized parcels sent with Sendle need to be under 3¾ gallons, under 20 lb and with a combined length and circumference of 108” or less in order to be fit for Sendle.
  • Also, take note of how your label fits on the tube. It’s very important that the parcel can scan correctly. Otherwise, the courier may reject it at pick-up.

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