Large Mailing Box - Brown - 390 x 280 x 140mm (Pack of 25)

Price Per Each: $4.70
Pack of 25 boxes: $117.56
Shipping calculated at checkout.
Price Per Each: $4.70 +GST
Pack of 25 boxes for $117.56 +GST

☑ In Stock: Ready to ship!

⛟ Ships next business day from WA

Our Large Mailing Box in brown, sized at 390mm x 280mm x 140mm, provides ample space for bulkier items such as small appliances and electronics. With its durable design, it offers reliable protection during transit -eco‑friendly strength for bigger ecommerce orders, quick to assemble and recycle.

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Select local pick up at checkout to collect from:
BOXES 24 - Unit 1 & 2
21 Pedlar Circuit, Rockingham WA
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Product Description

The Large Brown Mailing Box delivers hard-working protection with a natural kraft aesthetic customers love. Ideal for apparel sets, artisan goods, lifestyle bundles and homewares, this plain mailer is a favourite for brands prioritising sustainability without sacrificing reliability or speed in fulfilment.

Scale Shipping, Keep It Sustainable

This large brown mailing box pairs authentic kraft appeal with the structural integrity you need for larger dispatches. Corrugated strength protects against crush, while the efficient fold design keeps packing lines moving. Use stickers, stamps or tissue to create low-cost brand moments that still feel premium and planet-friendly.

  • Kraft brand appeal – Earthy look reinforces eco credentials and artisan quality.
  • Courier-ready durability – Strong board resists knocks and compression in transit.
  • Operational efficiency – Fast fold-and-lock saves time at pack-out.
  • Volume smart – Large internal capacity reduces excess filler.
  • Fully recyclable – Responsible materials support circular goals.

Related Options

Prefer a clean white finish? See the Large White Mailing Box.

Need branding? Choose 1‑Sided Printed or 2‑Sided Printed.

Make eco your everyday - order Large Brown Mailing Boxes for reliable, sustainable shipping at scale.

Product Specifications

SKU: LRG-MAILING-390-280-140-BR

Length: 390mm

Width: 280mm

Depth: 140mm

Print Type: Plain

Board Grade: Single Wall

Colour: Brown

Durability: Heavy

Pack Quantity: 25 boxes

Note: All sizes specified are internal dimensions. Product image is for illustrative purposes only.

Lead Times & Delivery

Lead Times

At Boxes 24, we offer a wide range of packaging solutions, including stocked products and custom-made orders.

Stock Boxes - dispatched next business day
Custom Printed Boxes - dispatched within 1-3 business days
Custom Boxes - dispatched within 5-7 business days

Please note: Lead times may occasionally vary during peak periods. If you require your order urgently, we recommend contacting our team prior to placing your order - we’ll do our best to accommodate your timeline.

Shipping Options

We deliver across Australia and internationally with reliable shipping partners.

We partner with Allied Expres and TGE for dependable nationwide delivery.

We also offer a Click & Collect option from our Perth facility - perfect if you’d prefer to pick up or arrange your own courier. We’ll notify you as soon as your order is ready for collection.

Delivery Costs

Shipping costs are calculated automatically at checkout, giving you full visibility of delivery fees before you complete your order.

  • Orders over $300 ship free to metro postcodes in Western Australia.
  • All other states, shipping charges are calculated at checkout.

For postcodes where applicable shipping charges apply please see our Shipping Policy.

Returns & Refunds

At Boxes 24, we manufacture with care and stand behind the quality of every box we deliver. If your order arrives damaged, faulty or doesn’t meet our manufacturing standards, we’ll make it right with a prompt replacement or resolution. Our quality guarantee ensures you can order with confidence.

If your order doesn’t meet the specifications, please notify Boxes 24. If a return is applicable, Boxes 24 will provide shipping labels for the return at no cost to you. Goods must be returned to Boxes 24 within 30 days

Need assistance selecting the right packaging? Our team is happy to help - get in touch for tailored recommendations.

Features of eCommerce boxes

Spacious Design

Ensures items remain secure during shipping.

Robust Material

Ensures items remain secure during shipping.

Large Mailing Box - Brown - 390 x 280 x 140mm (Pack of 25) - Boxes 24

Blank Canvas

Ideal for custom labels or handwritten notes.

Cost-Effective

Plain boxes offer a budget-friendly packaging solution.