Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
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Match single-, double-, or triple-wall corrugated construction to your product weight to prevent in-transit damage and minimize costly returns.
Dimensional Weight Cost Control
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Right-sized boxes cut carrier DIM weight charges, selecting the optimal LxWxH for each SKU directly lowers your per-shipment freight cost.
Mailer Box vs. RSC: Choose Correctly
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Self-locking mailer boxes suit branded DTC shipments; traditional RSC corrugated boxes are ideal for palletized B2B and high-volume fulfillment.

Need help choosing boxes?

Pick the right corrugated box without overpaying for size or strength

Use these buying guides to size your box, compare board strength, and avoid dimensional weight surcharges.

Corrugated Boxes Guide → How to choose size, strength, and wall type Box Size Calculator → Find the smallest safe box for your product 32 ECT vs 200 lb Test → Which board strength rating fits your shipment
Overview

3,094 corrugated boxes, literature mailers and mailing tubes from 2 to 36 inches, mostly ECT-32 kraft and white, sold in bundles of 10 to 50. Each listing shows inside dimensions, board grade and bundle count so you can match a carton to the part you ship. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

IN STOCK Engineered for small parcel protection: ECT-32-B corrugated construction delivers crush resistance with double-wall front and side protection. One-piece fold-and-tuck design eliminates assembly time and tape costs. Bundle of 50 mailers–ready to ship.
Boxes - Mailers

8x8x4 ECT-32 White Corrugated Mailers 50/Bundle

PN: M884

8 x 8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$90.39 / BUNDLE
IN STOCK Heavy-duty 8x8x3 one-piece folding mailers manufactured from ECT-32-B white corrugated material. Crush-resistant double-wall construction on front and sides requires zero tape, glue, or staples. Ships as a 50-pack bundle–reduce freight costs while maximizing protection for small to medium lightweight shipments.
Boxes - Mailers

8x8x3 ECT-32-B White Corrugated Mailers 50-Pack

PN: M883

8 x 8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$84.31 / BUNDLE
IN STOCK One-piece white corrugated mailers engineered for maximum crush resistance without tape, glue, or staples. ECT-32-B rated material delivers double-wall protection on front and sides. Ship 50 units per bundle–reduce fulfillment time and postage costs.
Boxes - Mailers

8x8x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M882

8 x 8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$75.20 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver crush-resistant protection in a lightweight one-piece design–perfect for cost-conscious fulfillment operations shipping small items. These 8x7x6 fold-and-tuck mailers require no tape, glue, or staples, assembling in seconds. Order by the bundle of 50 and optimize your shipping costs per unit.
Boxes - Mailers

8x7x6 ECT-32 White Corrugated Mailers

PN: M876

8 x 7 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$91.91 / BUNDLE
IN STOCK Heavy-duty ECT-32-B white corrugated mailers in 8x7x4 dimensions with crush-resistant double-wall construction. One-piece fold-and-tuck design requires no tape, glue, or staples–assemble in seconds. Pack of 50 delivers maximum protection while minimizing dimensional weight charges on every shipment.
Boxes - Mailers

8x7x4 ECT-32-B White Corrugated Mailers 50-Pack

PN: M874

8 x 7 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$86.59 / BUNDLE
IN STOCK Engineered for fulfillment efficiency: these 8x7x2 white corrugated mailers feature ECT-32-B crush-resistant construction with one-piece fold-and-tuck design–no tape, glue, or staples required. Pack of 50 delivers double-wall protection on front and sides while reducing dimensional weight and freight costs per shipment.
Boxes - Mailers

8x7x2 ECT-32-B White Corrugated Mailers 50-Pack

PN: M872

8 x 7 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$74.44 / BUNDLE
IN STOCK Lightweight ECT-32-B white corrugated mailers engineered for small package shipping. One-piece fold-and-tuck design with double-wall crush protection on front and sides–no tape, glue, or staples required. 8x6x6" dimensions, sold 50 per bundle for maximum volume savings.
Boxes - Mailers

8x6x6 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M866

8 x 6 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$91.15 / BUNDLE
IN STOCK Professional-grade 8x6x5 white corrugated mailers engineered from ECT-32-B material for maximum crush resistance and freight efficiency. One-piece fold-and-tuck design–no tape, glue, or staples required. Sold as a 50-unit bundle for consistent cost-per-unit savings.
Boxes - Mailers

8x6x5 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M865

8 x 6 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B white corrugated mailers in 8x6x4 dimensions. One-piece fold-and-tuck design creates double-wall protection on front and sides without tape, glue, or staples. Sold as a bundle of 50 to maximize your shipping efficiency and reduce per-unit costs.
Boxes - Mailers

8x6x4 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M864

8 x 6 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$56.35 / BUNDLE
IN STOCK Lightweight, crush-resistant 8x6x3" white corrugated mailers manufactured from durable ECT-32-B material. One-piece fold-and-tuck design requires no tape, glue, or staples–assembly takes seconds. Bundle of 50 reduces per-unit cost and freight overhead for high-volume shippers.
Boxes - Mailers

8x6x3 ECT-32-B White Corrugated Mailers 50-Pack

PN: M863

8 x 6 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$76.97 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver crush-resistant protection in a lightweight one-piece design that folds in seconds–no tape or adhesive required. Ideal for small parcel and e-commerce shipping, these 8x6x2 fold-and-tuck mailers reduce dimensional weight charges while maintaining double-wall protection on front and sides. Sold as a bundle of 50.
Boxes - Mailers

8x6x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M862

8 x 6 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$65.32 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers deliver superior crush resistance in a lightweight, one-piece folding design that requires no tape, glue, or staples. At 8" x 6" x 1", these mailers protect small fragile items while reducing dimensional weight charges. Bundle of 50 units optimizes warehouse efficiency and freight costs.
Boxes - Mailers

8x6x1 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M861

8 x 6 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers designed for lightweight e-commerce and fulfillment operations. One-piece fold-and-tuck design eliminates tape, glue, and staples while delivering double-wall crush protection on front and sides. Bundle of 50 units reduces per-unit cost and improves freight efficiency.
Boxes - Mailers

8x5x5 ECT-32-B White Corrugated Mailers 50-Pack

PN: M855

8 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$75.20 / BUNDLE
IN STOCK One-piece fold-and-tuck white corrugated mailers engineered for maximum crush resistance and lightweight shipping efficiency. ECT-32-B construction delivers double-wall protection on front and sides without tape, glue, or staples. Bundle of 50 units ready to ship.
Boxes - Mailers

8x5x4 ECT-32 White Corrugated Mailers 50-Pack

PN: M854

8 x 5 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$71.40 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers engineered for high-volume e-commerce and fulfillment operations. One-piece fold-and-tuck design with double-wall crush resistance requires zero assembly time. 50 mailers per bundle–reduce freight costs and postage spend on small, lightweight shipments.
Boxes - Mailers

8x5x3 ECT-32 White Corrugated Mailers 50/Bundle

PN: M853

8 x 5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$44.99 / BUNDLE
IN STOCK ECT-32-B white corrugated one-piece mailers with double-wall crush resistance on front and sides. 8x5x2 dimensions ship 50 per bundle. No tape, glue, or staples required–fold and ship in seconds to reduce labor costs and speed fulfillment.
Boxes - Mailers

8x5x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M852

8 x 5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

Buying path

Buy Boxes & Mailers by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

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Larger orders

For pallet, recurring, or mixed-SKU orders, send your list and ZIP and get a delivered price by email.

What to check first

  • Inside dimensions
  • Board grade or strength rating
  • Box style and closure
  • Case or bundle quantity
Common wrong-order risk: Choosing the outside size instead of the inside size. Confirm product fit, void fill, and storage space before ordering.
Use the box size finder -> Get a delivered quote for larger orders -> Compare corrugated box types -> View products below ->