Best Multi-Depth Box Mailers of 2026

Jordan Akhtar Avatar
Jordan Akhtar
Last Updated: 10 Feb 2026

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Multi-Depth Box Mailers are a versatile packaging solution for businesses that need to ship a variety of products in different sizes. These mailers are designed to be adjustable, with multiple score lines that can be easily folded to create a custom fit for each item. They are made from sturdy corrugated cardboard, providing excellent protection during transit. Multi-Depth Box Mailers are an efficient and cost-effective way to package and ship products, reducing the need for multiple box sizes and streamlining the shipping process.

At a Glance: Our Top Picks

25 Pack Small Parcel Cardboard Boxes Cover #TOP 1
25 Pack Small Parcel Cardboard Boxes
ftb score rating icon 9.9
Kraft Brown 1-12 Vinyl 7" Record Mailers Cover #TOP 2
Kraft Brown 1-12 Vinyl 7" Record Mailers
ftb score rating icon 9.8
CH-BOX 50 Pack 282x219x mm Small Cardboard Postal Boxes Cover #TOP 3
CH-BOX 50 Pack 282x219x mm Small Cardboard Postal Boxes
ftb score rating icon 9.6

Top 10 Multi-Depth Box Mailers

#TOP 1

25 Pack Small Parcel Cardboard Boxes

IDUKSAPMAXI-25
Brown
25 Pack Small Parcel Cardboard Boxes Cover
25 x New 450x350x160mm Mail Max Size Small Parcel Cardboard Postal Boxes - Single Wall Boxes With Multi-depth

The iDEALS Small Parcel Boxes are crafted from new, improved cardboard that ensures sturdiness and a high-quality finish. Measuring 450x350x160mm externally, these boxes fit perfectly within Royal Mail's Small Parcel guidelines, making shipping hassle-free. With an internal measurement of 440x340x144mm, you have ample space for your items. The maximum weight limit of 2 KG allows you to send a variety of small parcels securely. Choosing these boxes means you'll benefit from reliable packaging that keeps your products safe during transit.

What We Like
Sturdy cardboard construction
Fits Royal Mail specifications
Ample internal space
Lightweight for shipping
Great finish quality
#TOP 2

Kraft Brown 1-12 Vinyl 7" Record Mailers

Square Deal Recordings & Supplies
07BC01VD
Multicolour
Kraft Brown 1-12 Vinyl 7" Record Mailers Cover
(10) Kraft Brown 1-12 Vinyl 7" Record Cardboard Multi-Depth Shipping Mailers - 07BC01VD

The Kraft Vinyl Record Mailers are designed to safely transport your smaller 7" vinyl records. Each box can hold between 1 to 12 records, and the adjustable scoring line allows you to customise the height, making them versatile for your needs. Made from strong 200# test cardboard, these mailers ensure your records remain protected during transit. The mailers arrive flat, making storage easy and convenient until you're ready to use them.

What We Like
Customisable size for convenience
Strong cardboard for protection
Flat storage until needed
Holds multiple records securely
#TOP 3

CH-BOX 50 Pack 282x219x mm Small Cardboard Postal Boxes

CH-BOX
EM1182
50 Pack White
28x22x5cm
CH-BOX 50 Pack 282x219x mm Small Cardboard Postal Boxes Cover
CH-BOX 50 Pack 282x219x(13-51) mm (11.125x8.625x2'') Small Cardboard Postal Boxes, Height Adjustable Corrugated Mailers for Shipping Mailing Packaging Comics Books Magazines Photos, White (EM1182)

Features
EASY TO USE - Place Your Products In The Center Of Cardboard Corrugated Mailer, Fold In The Sides At Your Desired Depth And Seal With Tape, Pre-Scored At Multiple Depths To Ensure The Proper Fit For Your Products;
HEIGHT ADJUSTABLE - These One-Piece Mailing Boxes Have Scores At Multiple Depths At 13 / 25 / 38 / 52 Mm, 0.5'' / 1'' / 1.5'' / 2'' For Height Flexibility - One Medium Size Shipping Boxes Makes Multiple Sizes To Accommodate A Variety Of Flat Items;
PERFECT FOR - Mailing Shipping Cgc Awsbrzrkr Gemini Comic Books, Artworks, Framed Pictures, Paintings, Art Supplies, Catalogs Or Printed Materials, Perfect As Book Mailers, Protectors; Ship And Stores Flat;
BUY NOW RISK-FREE - If, For Any Reason, You Don't Absolutely Like The White Postal Box, Just Return It, And We'll Refund Every Penny (or Replace It, If There Is A Problem).
100% RECYCLABLE & CRUSH PROOF - Made From 1.5-2mm 32ECT-E Flute Single Wall White Corrugated Cardboard In One Piece, 100% Recyclable; Special Design For The Scores At The Sturdy Layers, Not Splitting, Makeing It Super Strong To Keep Your Items Safe During USPS Shipping, And Storage;

All-Pack Solutions Deep Small Parcel Boxes

BXSW047
Brown
All-Pack Solutions Deep Small Parcel Boxes Cover
All-Pack Solutions 10 Royal Mail Small Parcel Postal mailing Boxes 350x250x160mm (Deep Option)

The All-Pack Solutions Parcel Boxes come in a convenient pack of ten, providing ample space for your mailing needs with their generous dimensions of 350mm x 250mm x 160mm. Designed with a single wall construction, these deep boxes are sturdy enough to protect your items during transit. Their brown colour adds a professional touch to your parcels. Manufactured in the UK, these boxes ensure high quality and reliability, giving you peace of mind when sending your goods.

What We Like
High-quality UK manufacturing
Sturdy single wall design
Ample space for items
Pack of ten for convenience
Professional brown colour
#TOP 5

10 Kraft Brown 10-40 Vinyl 12" Record Cardboard Multi-Depth Mailers #12BC06VD

Square Deal Recordings & Supplies
12BC06VD Qty: 10
Brown
10 Kraft Brown 10-40 Vinyl 12" Record Cardboard Multi-Depth Mailers #12BC06VD Cover
10 Kraft Brown 10-40 Vinyl 12" Record Cardboard Multi-Depth Mailers #12BC06VD - Shipping Boxes / Containers (LP, 33RPM, Album)

Features
Multi-Depth Mailer: Fits 10-40 LPS - 1 Piece Box
Kraft Brown 200# Test Cardboard
Ships Or Stores 12" Vinyl Records
Scores At 2" And 4" Allow Box To Adjust To Perfect Height For Your ************************************************************* Needs
Dimensions: 12.5" X 12.5" X 6" (or 317.5mm X 317.5mm X 152.4mm)
#TOP 6

Yztree Vinyl Record Shipping Mailer Boxes

Yztree
LP Record Mailing Boxes
White
Yztree Vinyl Record Shipping Mailer Boxes Cover
Vinyl Record Shipping Boxes,12.5" X 12.5" x 1" White Vinyl Record LP Shipping Mailer Boxes,Easy Fold LP Cardboard Mailing Boxes Multi Depth Album Mailers for Packaging Moving Storage

The Yztree Shipping Mailer Boxes offer a practical solution for transporting your vinyl records safely. With 50 white mailers included, you will have ample supply for all your shipping needs. These easy fold mailers come in two sizes, allowing you to customise the height based on your album's needs. Constructed from strong corrugated material, they provide durability while being lightweight, making them perfect for secure shipping without added weight. Additionally, the mailers are recyclable, aligning with eco-friendly practices, giving you peace of mind when sending your precious items.

What We Like
Includes 50 mailer boxes
Customisable height options
Lightweight and durable design
Eco-friendly and recyclable
#TOP 7

STRONG 12" LP SINGLE RECORD VINYL MAILERS SHIPPING POSTAL CARDBOARD BOXES

Brown
STRONG 12" LP SINGLE RECORD VINYL MAILERS SHIPPING POSTAL CARDBOARD BOXES Cover
STRONG 12" LP SINGLE RECORD VINYL MAILERS SHIPPING POSTAL CARDBOARD BOXES (10, BROWN)

Features
12 Transducer Holds Up To 3 12 Records
Color: Natural Brown Or Solid White Please See Photos
Size : 10
Color : Brown

Large Letter Cardboard Shipping Boxes by SR Mailing

LGELETBOXC4005
Brown
Large Letter Cardboard Shipping Boxes by SR Mailing Cover
50X C4 A4 Size Box Large Letter Strong Cardboard Shipping Mailing Postal Pip, LGELETBOXC4005

The SR Mailing C4 Postal Boxes are designed for your shipping needs. Made from robust 1.2mm thick single wall cardboard, they ensure your items are well-protected during transit. Each box is delivered flat-packed and securely wrapped, making storage easy and convenient. You will appreciate how quick and easy they are to assemble, allowing you to prepare your parcels in no time. With a size qualifying for large letter postage, these boxes are perfect for sending documents and other flat items efficiently.

What We Like
Durable 1.2mm thick cardboard
Delivered flat-packed for convenience
Quick and easy assembly
Large letter postage qualified
#TOP 9

Wisaiboxl White Vinyl Record Mailers 12.8x12.8x1 Inch LP Mailing Corrugated Cardboard Boxes, Easy-Fold, Multi-Depth Album Shipping Boxes

wisaiboxl
White
15 Pack
Wisaiboxl White Vinyl Record Mailers 12.8x12.8x1 Inch LP Mailing Corrugated Cardboard Boxes, Easy-Fold, Multi-Depth Album Shipping Boxes Cover
Wisaiboxl White Vinyl Record Mailers 12.8x12.8x1 Inch LP Mailing Corrugated Cardboard Boxes, Easy-Fold, Multi-Depth Album Shipping Boxes with Fragile Stickers, 15 Pack

Features
Widely Used: 12.8x12.8x1 Inch Flat Shipping Boxes Are Clean, Professional And Ideal For Mailing And Storing LP Records, Comic Books, Photo Albums, Pictures Framed And Other Flat Items
Great Material: 12.8x12.8x1 Inch Mailer Boxes Made Of 200#/ECT-32-B Corrugated Cardboard (3mm Thick), Great Mass, Super Solid But Lightweight, Saves On Postage And Packaging Costs For Small Business And Retail Shipping Packaging Needs
Pre-Perforated Mailers: 12.8x12.8x1 Box Mailers Easy To Fold To 1/2-Inch Or 1-Inch Pre-Perforated Depth, Holds One To Three 12-Inch Vinyl Records
Extra Protection: 12x12 Mailing Boxes Weigh Only 0.32 Pounds Each. Includes 'Fragile' Stickers To Ensure Safe Handling During Transit. Note: Mailing 12-Inch Vinyl Records Requires Cardboard Squares To Sandwich The Records Between Them For Extra Protection In Shipment
DIY Creative: 12.8x12.8x1 Inch White Cardboard Boxes Have A Smooth Appearance And Flat Edges, Perfect For DIY Personalization Ideas
#TOP 10

12 Record - White - 1-3 Capacity - Multi-Depth Shipping Mailers by Square Deal Recordings & Supplies

Square Deal Recordings & Supplies
12BC01VDWH
White
12 Record - White - 1-3 Capacity - Multi-Depth Shipping Mailers by Square Deal Recordings & Supplies Cover
(25) 12 Record - White - 1-3 Capacity - Multi-Depth Shipping Mailers by Square Deal Recordings & Supplies

Features
Scored Multi-Depth Mailer - Easy To Adjust Down To Send 1 Or 2 12" Vinyl Records Or Leave At Full Height To ************************************************************* 3! Scoring Line Around Box At 1/2" Tall Enables You To Fold Down Easily.
Perfectly Sized To Fit And Protect 12" Vinyl LP Records - These Pair Perfectly With Item #12NCPAD - Cardboard Squares To Sandwich The Record In For Extra Protection During Shipment!
This Listing Is For 25 Individual Boxes.
Made In The USA.
Constructed With STRONG 200lb. Test Cardboard!
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a multi depth shipping box?

Multi-depth shipping boxes are scored at multiple depths to allow easy height adjustment for a perfect fit. Save space and money by reducing the number of different cartons in your inventory. No carton sizer needed, simply cut down to your desired size. Multi-depth boxes are made from strong 200#/ECT-32.

2. Why are mailer boxes so expensive?

At the same time, many cardboard boxes are destroyed to reduce waste by businesses, ultimately resulting in an effect of there being far less boxes in general, driving demand and prices accordingly. ...

Editor's Notes

During our multi-depth box mailer research, we found 81 multi-depth box mailer products and shortlisted 10 quality products. We collected and analyzed 18,253 customer reviews through our big data system to write the multi-depth box mailers list. We found that most customers choose multi-depth box mailers with an average price of £20.95.

The multi-depth box mailers are available for purchase. We have researched hundreds of brands and picked the top brands of multi-depth box mailers, including iDEALS UK PACKAGING LTD, Square Deal Recordings & Supplies, CH-BOX, All-Pack Solutions, Yztree.

Written by
Jordan Akhtar Avatar

Jordan Akthar owns one stationery store in Bradford, and another in Derby. He started with a corner bookshop, and now the rest is history. He is often found in his stores taking count of inventories of books and stationery. Jordan also likes to write, and this drove his passion for writing articles on stationery maintenance. He owns a blog, where in his free time, he would write DIY tips on how you can recycle and refine your stationeries.