Description
Our B396 brown height adjustable mailing box measures 310 x 230 x 110mm internally, sized for A4 items. Pre-creased lines on the side walls let you cut the corners down and fold the flaps over to set the height you need, cutting down on void fill and keeping cubic weight low.
Key Features
- Height adjustable: Pre-creased side walls let you trim the box down to suit your product, up to a maximum height of 110mm.
- Regular slotted carton (RSC): A classic shipping carton design that ships flat, folds up quickly and seals with packing tape.
- E-flute corrugated board: A thin, strong flute that keeps the carton light, helping keep postage costs down.
- Internal size 310 x 230 x 110mm (A4): Measured inside the carton, suited to A4 documents, books, folded clothing and multi-item orders.
- Fits an AusPost Extra Large prepaid satchel: Sized to fit inside an Australia Post Extra Large prepaid satchel.
- 100% recyclable and FSC certified: Made from 100% recyclable corrugated board from FSC-certified sources, so it can go straight into paper recycling.
- 90-day money-back guarantee: Backed by the eBPak 90-day money-back guarantee.
Specifications
| Product code | B396 |
|---|---|
| Internal dimensions (L x W x H) | 310 x 230 x 110mm |
| Paper size fit | A4 |
| Box style | Regular slotted carton (RSC), height adjustable |
| Colour | Brown |
| Board | E-flute corrugated board |
| Country of manufacture | Imported |
| Satchel fit | Australia Post Extra Large prepaid satchel |
| Recyclable | 100% recyclable |
| Certification | FSC certified |
| Pack size | 50 cartons |
| Guarantee | 90-day money-back guarantee |
Ideal For
- E-commerce orders and online-store dispatch
- A4 documents, books and stationery
- Folded clothing and multi-item orders
- Posting inside an Australia Post Extra Large prepaid satchel
- Small business and warehouse shipping
Custom Sizes, Made in Australia
Need a different size? We also produce regular slotted cartons locally in Australia, made to your exact dimensions — from 1,000 units, with a turnaround of around 2 weeks. Get a quote for custom boxes and cartons.
Browse the full range of Brown Shipping Boxes & Cartons.
- Lay the flat box printed side down and fold up the two long side walls.
- Fold the side flaps in (or push the locking tabs into the slots in the base, on diecut styles).
- Fold up the back wall, then pack your items. Add tissue paper or bubble wrap for fragile pieces.
- Close the lid and tuck the front flap into the front of the box.
- Self-seal styles have an adhesive strip on the flap. On other styles, seal the front flap with a strip of tape or a branded sticker for heavier items or extra security.
- Free delivery to Sydney & Melbourne metro on orders over $500.
- $50 flat rate to Wollongong areas and $75 to Gosford & Newcastle areas (up to 2 tonne).
- Australia-wide delivery via Australia Post and trusted couriers.
- Free pickup from Minto NSW or Braeside VIC, Mon–Fri 9am–4pm.
- 90-day returns on unopened items. See our refund policy.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Sizing
What fits in this box
Inside: 310 x 230 x 110mm (length x width x height)
- A4 documents, folders and books lie flat
- Fits inside an Australia Post Extra Large prepaid satchel
- About 7.8 litres of space inside
- Delivered flat, folds into shape in seconds
- Sizes are inside measurements. Allow 5–10mm each side for tissue paper or bubble wrap.
- Not sure? Use the size finder below or call us on (02) 8750 5347.
More 310 x 230 x 105mm boxes
Not sure of the size? Enter your item's dimensions.
Packing essentials
Buying in bulk? Pay less per box.
Order 1,000+ mailing boxes, or Australian-made shipping cartons by the pallet, and we'll quote a wholesale price. Trade accounts get invoice terms and a dedicated contact.
Questions about this box
What fits in a 310 x 230 x 105mm box?
A4 documents, folders and books lie flat (A4 is 297 x 210mm), with 105mm of height for shoes, clothing, gift sets and bundles of products.
Is the size inside or outside the box?
All sizes are internal (length x width x height), measured inside the box. The outside is a few millimetres bigger because of the board thickness.
Can I get this size in other colours or styles?
Yes. This A4 size comes in white, brown, black, pinks, blues, green, red, purple, lavender and orange, in diecut, tuck-front and self-seal styles. Use the "Same size, more colours & styles" link above the description to see them all.
What does "Full" or "Premium" colour mean?
"Full" colour boxes (for example Full Black or Full Rose Pink) are printed the same colour inside and out, so the box looks finished the moment it's opened. Most other coloured boxes are coloured outside with a natural kraft inside.
Are the boxes delivered flat?
Yes. The boxes are delivered flat in packs and fold into shape in seconds, so they take up very little shelf space.
Can I print my logo on the box?
Yes. We make custom printed boxes from 1,000 units, usually in around 2 weeks. Get a quote. For smaller runs, a printed sticker or stamp on a plain box works well.
What does the pack size mean?
The pack size is how many boxes come in one pack, for example x100 is a pack of 100 boxes. "Number of packs" sets how many packs you get, so x100 with 2 packs is 200 boxes.
Can I return the boxes, or pick up my order?
Yes to both. We offer 90-day returns on unopened items (see our refund policy), and you can choose pickup at checkout and collect from Minto NSW or Braeside VIC, Monday to Friday 9am to 4pm.
Need it today? Pick it up.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.