Buying guide

Thickness is a system decision, not a spec line

Thickness is the one specification that can force a whole batch to be remade. It is not a design preference and it is not a number you copy from a supplier page. It is an agreement between three parties — and most import problems start when each one assumes another has made it.

6 min read · Updated 2026-11-02

The short answer

On a sintered slab, thickness is decided by the application, by the fabricator who will cut and fit it, and by the supplier who confirms what is actually produced for that reference. SINTLIN publishes a narrow position on purpose: the standard format direction is 1600 × 3200 mm with 12 mm and 20 mm paths, and the confirmed thickness for a specific design is stated per product and confirmed in writing per order.

This site does not publish a technical datasheet, and it does not tell you which thickness your project needs. What follows is the sequence that produces a defensible answer instead of a preference.

Why an image cannot answer this

A full-face product image tells you how a surface reads at scale: how a vein distributes, whether the pattern repeats, how a design behaves across 3.2 metres. It does not tell you what the slab can be fixed to, what it weighs when handled, or what happens at a cut-out.

Image evidence and specification evidence answer different questions. The first is a design judgement; the second is a fabrication and commercial judgement. Confusing the two is how a showroom decision turns into a site problem.

The three parties, and what each one owns

The application owns the constraint. A worktop, a wall panel, a floor and a furniture surface load the material differently, and a wet area adds requirements that a dry wall does not have. Whoever defines the use is the first party.

The fabricator owns the execution. Cutting, edge work, cut-outs, handling and support all determine which thickness a shop can work with confidently. A fabricator who has not seen the slab cannot answer this, and a supplier who has never spoken to your fabricator cannot answer it for them.

The supplier owns the confirmation. What exists in the required thickness for the specific reference, packed and loaded for your order, is a written fact rather than a catalogue assumption. In the SINTLIN process this lands at order confirmation, where format, thickness, finish, quantity and packing profile are fixed and earlier correspondence is superseded.

Most expensive misunderstandings on imported slabs are not material failures. They are handoffs where each party assumed one of the other two had decided.

Five questions to settle before you ask for a price

If any one of these has no owner, the quotation is premature. A price on an undecided specification is not a saving; it is rework with a head start.

  • Which application is it — worktop, wall, floor or furniture — and is the location wet, high-impact or heat-exposed?
  • What substrate and fixing system will the installer use? Thickness follows the system, not the other way round.
  • Who is fabricating, and which thickness can their equipment and handling actually take?
  • Does the design you selected exist in that thickness for that reference, today?
  • What exactly is written in the order confirmation — thickness, format, finish, quantity and packing?

Why “how many slabs per container” has no general answer

A container is not a fixed number of slabs. Format, thickness, bundle structure and container type all move the count, and the two thickness paths do not behave the same way in a bundle. That is why the count in a SINTLIN order comes from the loading plan drawn up for that order, and why we do not publish a single figure that would be wrong for most shipments.

The same logic governs packing. Bundle structure, interleaving, edge protection and marking are agreed before production, because they are decided by the route and the destination requirements rather than by the design.

Sample first, or price first?

A sample confirms the surface: colour, finish and material character. It does not confirm price, availability, the thickness your project needs, or delivery. If your open question is “does this direction work in this room”, sample first. If your open question is “what thickness can my fabricator handle”, a sample will not answer it — your fabricator will.

The useful sequence is usually: narrow the direction, take a sample, settle the fabrication questions, then ask for a written quotation against a decided specification.

What we do not do

We do not publish a technical datasheet, a performance table or a recommended thickness per application, because those figures belong to a specific product and a specific test rather than to a brand page.

We do not rank designs, publish prices, or promise a delivery date before the order structure is agreed.

And we do not treat an unconfirmed specification as a detail to settle later. Thickness is cheaper to decide than to correct.

Common questions

Which thickness should I specify for my application?

Thickness follows the application, the substrate and the fabrication method rather than a website rule. Tell us the intended use — worktop, wall cladding, flooring or furniture — and the confirmed thickness is stated for that product and order.

Will two orders of the same design look identical?

Surface character comes from production, so a design is a direction rather than a colour code. When a project needs a consistent look, say so before the quotation so that a single-batch reservation can be confirmed in writing.

How many slabs fit in a container?

Loading depends on format, thickness, packing profile and container type. The slab count comes from the loading plan for the specific order, not from a general figure.

Next step

Compare the direction on a real surface.

Use a sample to judge colour and finish, then confirm the commercial facts in writing.