Choosing the Right Boxes for Shipping and Storage
Short answer: choose the box in this order — measure the item, match the wall to the weight, leave room for padding, then think about where the box will sit. A box that is too big wastes courier money and lets the contents slide; one that is too weak fails at the bottom of the stack; and one stored on a damp floor goes soft whatever it was made of. The steps below work for a single parcel, a month of online orders or a storage unit.
Step 1: measure the item, then add the padding
Measure the longest, widest and tallest points of what you are packing. Add about 5 cm to each side for cushioning if the item is fragile, less if it is not. That total is the inside size you are looking for.
Two reasons to stay close to that size:
- Courier charges. Malaysian couriers bill by whichever is greater, actual weight or volumetric weight (length × width × height ÷ 6,000 is the common formula; confirm the divisor with your courier). Empty space is billed as if it were product. The sums are in our volumetric weight guide.
- Movement. Contents that can slide hit the wall of the box at every bump. Fill gaps with paper, bubble wrap or PE foam.
Soft, unbreakable goods such as clothing often do not need a box at all — a courier flyer bag is lighter and cheaper to send.
Step 2: match the wall to the weight
| Contents | Box to choose | Why |
|---|---|---|
| Clothes, soft toys, plastic ware | Single wall, medium or large | Light load; the box only has to hold its shape |
| Books, documents, tins, tools | Double wall, small | Dense load; a small box keeps the weight liftable |
| Crockery, glassware, small appliances | Double wall, small or medium | Needs stacking strength plus padding inside |
| Bedding, cushions, lampshades | Large, single or double wall | Bulky but light; goes on top of the stack |
| Anything stored for months with a box on top | Double wall | Board under a constant load sags over time |
Single wall has one fluted layer and is about 3 mm thick; double wall has two and is about 5 mm thick. The difference matters most at the bottom of a stack. For the full comparison see 3-ply vs 5-ply carton boxes.
Whatever the wall, keep each packed box to 15–20 kg, with 25 kg as the ceiling. The usual mistake is filling a large box with something dense; the fix is a smaller box, not a stronger one.
Step 3: new or once-used?
Both are sold from the same warehouse, and the choice is mostly about presentation:
- Once-used Grade A cartons have been used once and checked by hand — rigid, dry, clean and odour-free. They are cheaper than a comparable new box and suit moving house, storage and outer cartons for ordinary parcels. They carry the previous owner’s printing, and they are not food-grade or halal-certified packaging. Our used range starts at RM1.10 a piece for the single-wall Ain1000 (320 × 220 × 280 mm).
- New cartons are plain and consistent, which matters when the box represents your brand or the goods are valuable. The new range runs from the mini XS (170 × 115 × 150 mm, RM1.10) to jumbo cargo boxes.
Step 4: shipping or storage?
For shipping, the box has to survive handling, not time. Seal the base and the top in an H pattern with 48 mm packing tape, label the heavy side, and check your courier’s size and weight limits before you pack — see courier parcel size limits in Malaysia.
For storage, the enemy is humidity. Corrugated board takes up moisture from the air and loses stiffness as it does, so in Malaysia:
- Keep boxes off bare concrete, on a pallet, a shelf or a cardboard layer pad.
- Leave a gap between the stack and any external or bathroom wall.
- Stack no more than three high, heaviest at the bottom, with matching footprints.
- Keep clothes, books and papers out of cardboard in a room with no airflow; use lidded plastic bins for those.
There is more in packing for self-storage and why cardboard goes soft in Malaysian humidity.
A quick checklist
- Item measured, padding allowance added
- Smallest box that fits chosen
- Double wall for anything heavy, stacked or stored long
- Packed weight under 20 kg
- No movement when the sealed box is shaken
- Base taped in an H pattern
- Storage boxes off the floor and away from the wall
FAQ
How do I choose the right size box for shipping?
Measure the item’s length, width and height, then add about 5 cm on every side for padding. Pick the smallest box that fits that total, because couriers charge by volumetric weight and an oversized box costs more to send.
When do I need a double-wall box?
When the contents are heavy, dense or hard-edged, when the box will sit under other boxes, or when it will be stored for months. Single wall is fine for light goods on a short trip or at the top of a stack.
Are used carton boxes suitable for storage?
Yes, for dry indoor storage of hard goods, provided the box is rigid, dry and clean. Keep boxes off bare concrete and away from external walls. Used cartons are not food-grade, so keep food in its own sealed packaging inside.
How heavy should a packed box be?
Aim for 15–20 kg, with 25 kg as the ceiling for one person. Put dense items such as books and tins in small boxes, and keep the large boxes for light, bulky things such as bedding.
Not sure which box?
Send us the size and weight of what you are packing and we will suggest a box. Quinocycle Sdn Bhd, No.13, Jalan Taming P/1, Taming Jaya, 43300 Balakong, Selangor — WhatsApp +6016-891 6381, office 03-8962 6381, sales@quinocycle.com. Delivery across KL and Selangor is on our own lorry the next working day, free for orders of RM300 and above and RM30 flat per trip below that; elsewhere we send by courier, quoted case by case. We are open Monday to Friday 8.30am–5pm and Saturday 8.30am–1pm, and closed on Sundays and public holidays.