Why Furniture Needs a Wooden Crate for Sea Freight: Specs, Cost and Checks

Furniture shipped by sea needs a wooden crate or an equally rigid structure on the outside. A carton will not do. This is not a strict rule for its own sake, it is what actually happens inside a container: cargo is stacked in layers, the voyage runs close to a month, and humidity inside the box is high with repeated condensation. Once a carton absorbs moisture it softens, and the weight above lands directly on your furniture. You can have the crate built by a workshop, or leave the crating to us: large items and furniture going by sea have both a crating service and a timber treatment service, each quoted case by case. Ordinary consolidation parcels fall outside that and still have to be boxed before drop-off.

In this guide

• Why does furniture going by sea need a wooden crate?
• Slatted crate, closed crate or pallet: what is the difference?
• What makes a crate acceptable?
• How much does a crate add to the freight?
• What are the rules on wooden packaging material?
• Where do you get a crate made, and can we do it for you?
• Frequently Asked Questions
• Three checks before drop-off

Why does furniture going by sea need a wooden crate?

A container is not a living room. It is a steel box that moves for a month. Furniture has to survive four forces on the way, and a carton handles none of them.

• Stacking pressure. Containers are only economical when full, and your goods are unlikely to be on the top layer. Whatever sits above presses down for the entire voyage.
• Continuous vibration. A ship rolls at low frequency for a long time, which is nothing like the short impacts of road transport. Vibration walks unsecured contents around inside the box until they push a wall out.
• Humidity and condensation. Containers heat up by day and cool at night, so moisture condenses on the inner walls and drips down, a phenomenon the trade calls container rain. Wet cardboard loses its structural strength and collapses layer by layer.
• Mechanical handling. Every move in and out of the warehouse and the container is done with a forklift. Without a base that can be lifted on forks, handlers push and drag instead, and corners are what break.

The real difficulty with furniture is that it is large, heavy, and not always balanced in the middle. When a wardrobe tips, the corner of a carton is the first thing to fail. A crate solves a structural problem: uprights carry the load, the base takes the forks, and the slats hold the shape, so the forces travel through the timber frame rather than through your furniture.

If you have not settled on sea freight yet, compare the options in air versus sea freight. Oversized items sent by air face different size and weight limits, and different packing requirements.

Slatted crate, closed crate or pallet: what is the difference?

All three are called wooden packaging, but they protect different things, and they differ a lot in cost and volume.

A slatted crate is enough for most furniture. The gaps between the boards are deliberate rather than a saving: ventilation reduces trapped moisture inside the container, and both weight and volume come out lower than a closed crate. When freight is billed by volume, that matters.

Be careful with a pallet on its own. A pallet solves lifting, not crushing. If nothing supports the top of your furniture, stacking will still reach it. Pallets suit goods that are already inside something rigid and simply need a base a forklift can pick up.

What makes a crate acceptable?

One test covers it: press from above, push from the side, lift it on forks, and the furniture itself should take none of the load. In practice that breaks down into six things you can check.

1. A base with fork openings. Two-way entry at minimum, with bearers rated for the loaded weight. Without it, every move has to be done by hand.
2. Uprights at the corners. The uprights carry the load and the slats hold the shape. A crate with undersized uprights starts deforming at the corners under stacking.
3. Slats close enough together. Gaps that are too wide are the same as having no face at all. A rough rule is that a hand should not fit through, and fragile areas want closer spacing.
4. Contents fixed in place. The furniture must not move inside the crate. Block it with timber and fill the voids with cushioning, because movement is the main cause of damage over a long voyage.
5. A moisture liner. Line the inside with PE film or moisture-resistant paper and add desiccant. A slatted crate is open, so this layer is not optional.
6. Clear markings. This way up, fragile, centre of gravity, gross weight, and your shipping mark. Markings are written for handlers, and a crate without them is an invitation to move it any way they like.

Surface protection goes on before the crate does. Wrap timber or lacquered surfaces in non-woven fabric or protective film first, then bubble wrap, with extra padding on glass, mirrors and stone. The crate handles external force and the wrapping handles abrasion, and neither substitutes for the other. General cushioning practice is covered in the consolidation packing guide, and glass is dealt with separately in packing glass bottles.

How much does a crate add to the freight?

Sea freight is billed by volume, and the outside of the crate is what gets measured, so the few centimetres the frame adds are centimetres you pay for. On the Taiwan to Malaysia sea lane the rule is the greater of actual CBM or weight divided by 500, with a minimum charge of 0.5 CBM.

A concrete example:

• A three-seat sofa measuring 180 x 90 x 85 cm comes to 1.377 CBM.
• Crated, with roughly 5 cm added per side (10 cm across each dimension), it becomes 190 x 100 x 95 cm, or 1.805 CBM.
• That is 0.428 CBM more, an increase of about thirty percent.

Does the weight of the crate itself count? At this size it runs to a few tens of kilograms. For weight to drive the billing, 1.805 CBM would need to correspond to 902.5 kg (1.805 multiplied by 500), and ordinary furniture is nowhere near that. In other words volume decides the bill, the weight of the crate barely registers, and what costs you money is the size the frame adds.

The way to save is not to skip the crate but to dismantle before crating. Take off table legs, bed frames and cabinet doors and lay them flat, and the height of the crate drops sharply, which cuts both timber and freight. Measure the outermost edge of the crate, including protruding corner pieces and bearers. Estimating method is in estimating weight and dimensions, and the wider cost structure is in shipping large items and furniture to Malaysia.

What are the rules on wooden packaging material?

Packaging made of solid wood generally has to be heat treated or fumigated and marked accordingly, an international measure against the cross-border spread of pests. Crates, pallets and wooden skids all count as packaging material, and they are assessed separately from the furniture inside.

• Solid timber: needs treatment and a mark.
• Plywood, MDF, OSB and other processed panels: already heat processed during manufacture, so usually outside the requirement.
• Wood with soil or bark still attached: not usable.

This is a separate operation, not something that comes free with the timber. It needs its own time and its own budget, and it has to leave a mark behind. Three ways to handle it: tell the crate maker up front that it is for export so they use treated, marked material; choose a plywood crate and avoid the question entirely; or leave the timber treatment to us, quoted separately. Handled in Taiwan it is one extra step; if treatment is demanded at destination, neither the cost nor the delay is under your control. Whether the furniture itself faces any quarantine requirement is worth asking before you ship, and the paperwork side is covered in formal customs declaration.

Where do you get a crate made, and can we do it for you?

We can. Large items and furniture going by sea have a crating service, and timber treatment can be arranged with it, both quoted case by case. Send dimensions and photos for a price. One boundary to be clear about: this is for large items only. Ordinary consolidation parcels have no such service and still have to arrive boxed.

Having it built yourself is equally fine, and there are three practical routes:

• Export packaging and crate workshops. Most will measure and build on site. Pricing depends on dimensions, board type and whether treatment and marking are needed.
• The furniture shop or the original seller. When buying new furniture, ask whether export packing is available, since some suppliers already work with a packing workshop.
• International moving companies. Firms handling cross-border relocation usually include packing, which suits a whole household going at once.

Whoever builds it, measure before asking for a price. Crate quotes follow volume, and that same volume is what you will later pay sea freight on, so the two costs move together and are worth working out in one go. Scheduling a full household shipment is covered in moving back to Malaysia.

Frequently Asked Questions

Does it really have to be wood? What about a very thick carton?

It does. The difference is structural rather than a matter of thickness: cardboard loses much of its strength once damp, and the inside of a container stays humid for the whole voyage. Double-wall board is fine on the road but will not hold up to prolonged stacking at sea.

If I dismantle everything, can I use cartons?

If the pieces are flat and no single carton is heavy, cartons with good edge protection can work, and it is the cheapest option available. Glass, stone, mirrors and one-piece cabinets still need a crate.

Will customs ask for the crate to be opened?

It can be selected for inspection. A slatted crate has gaps, so it rarely has to be taken apart completely, whereas a closed crate that gets opened is never resealed to the same standard. That is one reason slatted crates are the more common choice for export.

Is the weight of the crate charged?

The Taiwan to Malaysia sea lane bills by volume, switching to weight only when weight divided by 500 exceeds the actual volume. Furniture plus crate sits well below that threshold, so what drives the bill is the size the frame adds, not its weight.

Can I just use a pallet with stretch film over the top?

Only when the goods are already inside something rigid. Stretch film secures a load, it does not carry one, and anything stacked above presses straight onto the goods.

If something does break, is it covered?

Consolidation itself carries no insurance, so packing is the sender's responsibility; goods that need insured cover can go through a formal customs declaration instead, see why consolidation has no insurance. The process when something goes wrong is in damage and loss claims.

Three checks before drop-off

It comes down to three things. First, the crate needs fork openings, corner uprights and internal blocking, so the furniture cannot move inside it. Second, measure the outermost edge of the crate, because that is the billable size, and dismantle whatever you can first. Third, the timber needs treating and marking as a separate step, so say so when you order the crate, or ask us for a price.

Crating and timber treatment for large items and furniture by sea can both be left to us, each quoted case by case; ordinary consolidation parcels still have to arrive boxed. To get a rough freight figure first, see routes and rates, or put the outside dimensions of the crate into the calculator on the site before asking for a quote.