How to Pack a 40HQ Container for Filing Products: A Factory View

A 40HQ container (40-foot high cube) holds roughly 60 to 76 cubic metres of cargo and is the standard export unit for B2B stationery orders. The right way to load one depends on the product mix, the carton size, the destination port, and whether the cargo is palletised or floor-loaded. This guide explains the planning steps and the trade-offs a B2B buyer should know before the container is sealed.

1. What a 40HQ container actually fits

A 40HQ container has the following internal dimensions:

• Length: 12.03 m
• Width: 2.35 m
• Height: 2.69 m
• Internal volume: approximately 76 cubic metres
• Maximum payload: approximately 26 to 28 tonnes depending on the container spec

The 76 cubic metres is the upper bound. The practical cargo volume is lower because of two factors: the cartons are not perfectly space-efficient, and the cargo cannot fill 100 percent of the height without bracing. Most B2B stationery orders use 60 to 70 cubic metres of the 76 cubic metre envelope.

2. Step one: calculate carton volume

The first planning step is to calculate the volume of each SKU's outer carton. For a filing product order, the outer carton dimensions are typically:

• A4 lever arch file carton: 36 cm by 28 cm by 30 cm (roughly 0.030 cubic metres per carton, depending on the product)
• A4 box file carton: 38 cm by 30 cm by 32 cm
• Ring binder carton: 34 cm by 26 cm by 28 cm
• Sheet protector carton: 32 cm by 25 cm by 22 cm

Multiply the carton volume by the number of cartons in the order to get the total cargo volume. Divide by the practical cargo volume (typically 65 cubic metres for a stationery order) to get the container count.

3. Step two: choose pallet or floor-load

Two main loading styles apply to filing products:

• Palletised (pallet-in): cartons are stacked on standard wooden pallets (typically 1.0 by 1.2 m or 1.1 by 1.1 m), shrink-wrapped, and loaded into the container with a forklift. This is the standard for buyers with their own warehouse receiving equipment at the destination.
• Floor-loaded (loose load): cartons are stacked directly on the container floor without pallets. This is the standard for buyers with hand-truck or manual receiving at the destination, or for orders shipping to ports with limited forklift capacity.

Palletised loading is faster to load and unload but loses 8 to 12 percent of the container volume to the pallet wood. Floor-loaded loading uses more of the container volume but takes longer to load and unload.

For most B2B stationery orders, palletised loading is the right default. Floor-loaded is appropriate for very large cartons that would not fit on a pallet or for orders going to ports without forklift access.

4. Step three: plan the stack pattern

The stack pattern is the order in which cartons are arranged inside the container. Three rules apply:

• Heavy at the bottom. Heavier SKUs (PP box files, lever arch files with metal mechanisms) go on the bottom layer, lighter SKUs (sheet protectors, expanding files) on top.
• Edge-to-edge, no gaps. Cartons are arranged edge-to-edge across the width of the container, with no gaps along the length. Gaps reduce the loading efficiency and create instability during transit.
• Height limit, not container ceiling. The stack height is set by the carton strength, not the container ceiling. Most stationery cartons are rated for 5-high stacking; beyond that the bottom cartons compress.

A good load planner will draw the stack pattern on paper before the cartons go in. The drawing shows where each SKU sits and how the cargo braces against the container doors.

5. Step four: confirm with the freight forwarder

Three details to confirm with the freight forwarder before the container is sealed:

• The loading sequence. Some destination ports require specific SKUs to be accessible from the container doors for customs inspection. Confirm the order in advance.
• The bracing and dunnage. Heavy cartons at the bottom of the stack need to be braced against the container walls to prevent shifting in transit. The bracing is typically wooden blocks or inflatable dunnage bags.
• The seal and the seal record. The container seal number is recorded on the bill of lading and checked at the destination. The seal is applied at the end of loading and is the legal boundary of the cargo.

For B2B buyers with a long-term freight contract, the freight forwarder typically assigns a load planner to the order. For spot freight, the buyer is responsible for confirming the load plan with the carrier.

6. Common mistakes to avoid

Four mistakes cost B2B buyers time and money on container loading:

• Miscalculating the carton volume. Buyers who estimate carton size by eye routinely under-count the number of containers needed. Always use the actual outer carton dimensions from the supplier.
• Ignoring the destination port. Some ports have weight restrictions on the container axle, and some have forklift capacity limits. The load plan must match the destination.
• Over-stacking the bottom cartons. A 7-high stack of stationery cartons will crush the bottom layer. The stack height is set by the carton compression rating, not the container ceiling.
• Skipping the load plan. A container loaded without a plan wastes 10 to 15 percent of the cargo volume and creates instability during transit. The load plan takes an hour to draw and saves a day at the destination.

For B2B buyers placing their first container order, the safest path is to confirm the load plan with both the supplier and the freight forwarder before the cartons are sealed in the factory.

7. Frequently asked questions about 40HQ container loading

Q: How many cartons fit in a 40HQ container?

It depends on the carton volume. For a typical A4 lever arch file carton of 0.030 cubic metres, a 40HQ container holds roughly 2,000 to 2,300 cartons (palletised) or 2,200 to 2,500 cartons (floor-loaded). For larger box file cartons, the count is lower. Always confirm with the supplier.

Q: Is palletised loading always better?

No. Palletised loading is faster at both ends but loses 8 to 12 percent of the container volume. For orders where volume efficiency matters more than unloading speed, floor-loaded is the right choice.

Q: What is the maximum stack height for stationery cartons?

Most stationery outer cartons are rated for 5-high stacking. Beyond that, the bottom cartons start to deform. A load planner will draw the stack pattern and confirm the height limit before loading.

Q: How long does it take to load a 40HQ container?

A skilled load crew can palletise-load a 40HQ in 2 to 3 hours. Floor-loaded takes 3 to 4 hours. Customs inspection at the port adds another 1 to 2 hours on top of the loading time.

Q: Can we mix SKUs in one container?

Yes, and most B2B orders do. A typical order ships 3 to 8 SKUs in one container. The load plan groups the SKUs by size and weight so the stack pattern is stable.

Next step: Send your inquiry with the SKU list, the carton dimensions, and the destination port. We will reply with a container count estimate, a stack pattern suggestion, and a target lead time for production plus loading. If you are at the brief-writing stage and not sure how many containers your order will need, send us the SKU list and we will work out the volume calculation with you.