What Are the Bubble Mailer Dimensions?

Bubble Mailer Dimensions

Have you ever wanted to send delicate objects halfway across the world? Well, thanks to bubble mailers, you can. A bubble mailer is a type of envelope that has an interior lining of bubble wrap to add an extra layer of protection for shipped valuables. So, what are the dimensions of a bubble mailer?

The dimensions of a bubbler mailer vary based on the size of the envelope, which is usually around a quarter to half an inch shorter or narrower. For instance, an 8.5 × 12-inch envelope will have an 8.5 × 11.5-inch interior pocket.

Bubble mailer dimensions

So, what exactly is bubble mailer used for, and how do you choose the correct bubble mailer envelope? I’ll address these queries and a lot more below.

What Is Bubble Mailer?

What Is Bubble Mailer

You’re probably well aware of how helpful bubble wrap is. The most important thing about bubble wrap, apart from the tons of enjoyment you get from popping the individual bubbles, is that it’s reusable. So, if you can stop yourself from popping the bubbles, you can continue using the sheet of bubble wrap over and over again.

But what does bubble wrap have to do with bubble mailers? It’s what lines the interior of large brown envelopes used to send documents to far-off places. If you were to pull apart the envelope, you would find the inside lined with a thin layer of bubble wrap, which is there to protect your valuables during long trips.

Bubble Mailer Sizes and Size Chart

Bubble Mailer Sizes and Size Chart

The thing about bubble mailers is that the interior bubble-wrap lining limits the size of the envelope’s contents. This is because the bubble wrap is folded in half and plastered to the two interior faces of the envelope, either horizontally or vertically, limiting the usable length but not its width. Other bubble mailers will have a separate bubble-wrap pocket placed inside the envelope.

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For instance, a basic envelope used for sending letter-size documents will measure 8.5 × 12 inches. However, a bubble mailer used to send the same files would have an interior measurement of around 8.5 × 11.5 inches or 7.75 × 12 inches.

The exact size of the envelope and interior pocket may vary between manufacturers. However, on average, the sizes will look a little something like this:

Exterior Envelope DimensionsInterior Dimensions
4 × 8 in.4 × 7.5 in.
6 × 10 in.6 × 9.5 in.
7.5 × 11 in.7.5 × 10.5 in.
9 × 12 in.9 × 11.5 in.
12.5 × 19 in.12.5 × 18.5 in.

What Is Bubble Mailer Used for?

What Is Bubble Mailer Used for

As previously indicated in this guide, bubble mailers are used for sending delicate objects through the mail.

If you want to send photographs, jewelry, fabric, toys, CDs, official documents, USB flash drives, reports, or smartphones through the mail, you have to make sure that they have the proper padding. Bubble mailers eliminate the need to manually stuff brown envelopes with sheets of bubble wrap.

Another huge benefit of using a bubble mailer to send documents via mail is that the bubble-wrap liner is 100% waterproof. So, if the mailman has to deal with rain or snow, you can rest assured that none of the moisture will seep into the mailer’s contents.

Can You Get Bubble Mailer for Free?

While the USPS can provide free envelopes for some of their services, bubble mailer is, unfortunately, not on that list. You will have to purchase your bubble mailer via Amazon like everyone else.

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Bubble Mailer Variations

The most common type of bubble mailer will have a thin internal lining of bubble wrap. However, some bubble mailers’ exterior envelopes with have polyurethane bubbles built into. This doesn’t just protect the contents from damage during long-distance travel, but it will not affect the interior pocket of the envelope, allowing you to utilize 100% of its internal cavity.

How Much Does Bubble Mailer Weigh?

On average, the weight of a single bubble mailer will weigh around 0.05 ounces.

The weight of the bubble mailer depends on its size and what the exterior envelope is made of. if you take a look at Fuxury Bubble Mailers, which are 6 × 10 inches in size (exterior dimensions) and have a plastic exterior, they will weigh considerably more than Quality Park Bubble Mailers.

Just for fun, let’s do a side-by-side comparison of different bubble mailers and find out how much they differ.

BrandExterior DimensionsInterior DimensionsMaterialsTotal WeightMailer CountWeight per Mailer
Fuxury6 × 10 in.6 × 9 in.Plastic30 oz.1000.3 oz.
Quality Park6 × 9 in.6.78 × 9 in.Kraft paper0.48 oz.500.01 oz.
HBLife6 × 10 in.6 × 9 in.Plastic14.4 oz.500.3 oz.
Metronic4 × 8 in.4 × 7 in.Plastic10 oz.500.2 oz.
Famagic4 × 8 in.4 × 7 in.Polyethylene10.8 oz.500.2 oz.
Metronic6 × 10 in.6 × 9 in.Plastic30 oz.1000.3 oz.
GSSUSA4 × 8 in.4 × 7 in.Polyethylene9.9 oz.500.2 oz.

Why Should I Use Bubble Mailer?

The alternative to using a bubble mailer when sending delicate objects is boxes stuffed with bubble wrap or packing peanuts. While the alternative is certainly effective, bubble mailers have the following upsides going for them:

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Lightweight—You don’t have to spend more than you need to on shipping fees if you package your items in bubble mailers.

Packing speed—To use a bubble mailer, all you have to do is ensure that the envelope will close over the object you wish to ship. Alternatively, you would have to manually line or pack a box with bubble wrap or packing peanuts, which is a pain if you need to ship hundreds of items every day.

Compact—Since they’re so small, bubble wrappers won’t take too much space in your trunk or car when transporting things on your own. That means you can fill your vehicle with more bubble mailers and deliver to more people per trip.


Baron Cooke has been writing and editing for 7 years. He grew up with an aptitude for geometry, statistics, and dimensions. He has a BA in construction management and also has studied civil infrastructure, engineering, and measurements. He is the head writer of measuringknowhow.com

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