An A-frame is a rigid rack that carries porcelain slabs upright, leaning slightly against each other, so the slabs take weight on their long edge instead of lying flat. It is the standard way to ship large slabs because a flat stack puts bending stress across a thin, large panel.
The frame protects the slabs, but only if it is built well, loaded evenly and secured inside the container. Each of those is worth checking.
Why do slabs ship upright?
A porcelain slab is strong in compression and weak in bending. Lying flat, a long slab can flex under its own weight and under the weight above it, and a bump can crack it. Held on edge, the load follows the slab's strongest direction.
Upright shipping also makes handling safer. A forklift or crane can lift a whole frame in one move. See how large slabs are packed for the full packing sequence.
What makes a good A-frame?
Frames differ between packers. Look for these features when you approve the packing:
- A sturdy base, usually timber or steel, wide enough to keep the frame stable.
- Padding between slabs, such as foam, paper or cardboard, so faces do not scratch each other.
- Edge and corner protection on every slab, since corners are the most common point of damage.
- Straps or bands that hold the bundle tight without crushing the edges.
- Wood that meets international plant-health marking rules for packing material, which customs may check.
How are frames secured inside the container?
A frame that can move inside the container is a hazard even if it is well built. Frames should be loaded so the load is balanced across the floor, with timber blocking, bracing and lashing to stop movement forwards, backwards and sideways. Gaps should be filled with dunnage.
Weight distribution matters too. Slabs are heavy, so the load should not sit mostly at one end. The facts on counts per container are in how many porcelain slabs fit in a container.
What happens on arrival?
Plan the unloading before the container is opened. The frame should come out in one piece, using suitable lifting equipment, and be placed on a level surface. Do not open straps and lean slabs against a wall without support. The guide to unloading and handling slabs gives the method.
Check each frame as it comes out. Photograph any damage before moving it, and note it on the delivery paper, because it supports a claim. See slab breakage risk in shipping.
How do you get this right at origin?
Ask the factory for photographs of the frame and the finished loading, and have someone attend the loading. Frame quality and bracing are visible on the day and almost impossible to check later. Container loading for tiles explains what a supervisor records.
Can slabs ever be shipped flat?
Smaller or thicker slabs and cut-to-size pieces are sometimes packed flat on pallets or crates, but this is the exception. The decision depends on the size, thickness and the factory's packing design. If a supplier proposes flat packing for large slabs, ask for the reason and for evidence from earlier shipments, and make sure the claim terms cover breakage.
Next step
We check slab packing and bracing and supervise loading. To plan a slab shipment, book a free sourcing review.