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Description
100-Piece Superflat White Mailing Box B21
Protect your shipments with the 100-piece Superflat White Mailing Box B21, an efficient and eco-conscious packaging solution designed for modern businesses. These boxes are crafted from quality kraft corrugated cardboard, incorporating over 50% recycled fiber to minimize environmental impact without compromising on durability.
- 310 x 220 x 16mm internal dimensions provide ample space for larger letter items while maintaining a sleek, flat profile.
- White outside, brown inside finish offers a clean, professional aesthetic that can be customized with branding.
- Self-locking die-cut folding design ensures quick assembly and a secure closure, saving time during packing.
- Lightweight construction helps reduce shipping costs, especially when sending items classified as large letters.
- FSC Certified materials guarantee responsible sourcing, aligning with sustainability goals.
Compared to bulkier packaging or less rigid mailers, these Superflat boxes are engineered to slide through postal systems as large letters, significantly cutting down shipping expenses. Their compact, rigid design offers superior protection against bending and crushing, which is often a concern with standard envelopes or thinner cardboard options.
Key Technical Advantages: Technology and Performance
The e-flute construction of these mailing boxes provides a balance of strength and flexibility, ideal for protecting delicate items during transit. Featuring a natural, uncoated matte finish, they present a refined look. Backed by a 90-Day Money Back Guarantee, this product offers reliable performance and customer satisfaction.
- Pickup specials are priced for collection from our Minto NSW or Braeside VIC warehouse.
- Delivery is available within Sydney and Melbourne metro. Call us for a price, or we'll contact you after you order.
- 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.
Pickup specials
Collect from Minto NSW or Braeside VIC and pay less.
✅ Save on delivery costs
✅ Inspect and test items on-site
Can't pick up? We can deliver within Sydney and Melbourne metro.
Save $3.00
230 x 180 x 130mm Regular Mailing Box B43 - Cubic 2KG White
Sale price$53.50
Regular price$56.50
$0.54 each
More pickup specials
Save $3.00
230 x 180 x 130mm Regular Mailing Box B43 - Cubic 2KG White
Sale price$53.50
Regular price$56.50
$0.54 each
Questions about pickup specials
Where do I pick up?
Unit 2, 1 Swaffham Road, Minto NSW 2566, or 21–23 Endeavour Way, Braeside VIC 3195. Both are open Monday to Friday, 9am to 4pm. We'll email you when your order is ready, usually within 15–30 minutes.
Can you deliver a pickup special?
Yes, within Sydney and Melbourne metro. Call (02) 8750 5347 for a delivery price, or place the order and we'll contact you.
Can I return an item, 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.
Do prices include GST?
Yes. Every price on the site includes 10% GST, and your tax invoice is emailed with your order confirmation.
Need it today? Pick it up.
Order online and we'll usually have it ready in 15–30 minutes at either warehouse.
NSW
Sydney — Minto
Unit 2, 1 Swaffham Road, Minto NSW 2566
Mon–Fri 9am–4pm · Sat–Sun closed
Get directions
VIC
Melbourne — Braeside
21–23 Endeavour Way, Braeside VIC 3195
Mon–Fri 9am–4pm · Sat–Sun closed
Get directions
Talk to our team
Call us on (02) 8750 5347
Fast delivery Australia-wide
Via Australia Post and trusted couriers
Pickup in Sydney & Melbourne
Minto NSW and Braeside VIC
90-Day Returns
On unopened items