Book-match means two slabs are made as mirror images of each other, so when they are laid side by side the veins meet at the joint and form one symmetrical pattern. It copies the way quarries cut a marble block into consecutive slices and open them like the pages of a book.
With porcelain, the effect comes from digital printing. The factory prints a design and then its mirror image, in a planned sequence. The look is popular for feature walls, behind beds and baths, on islands and in hotel lobbies.
Types of matching
- Two-way book-match: a pair of slabs mirrored along one joint, usually side by side.
- Four-way or quad match: four slabs mirrored along both a vertical and a horizontal joint, forming a diamond or butterfly pattern.
- Continuous or sequence match: slabs printed so the veins run on from one slab to the next without mirroring, along a wall or floor.
- Random faces: the normal case, where slabs are printed from several different faces and laid in any order.
Book-match is not just fewer faces
Random faces are explained in face variation in digital designs. Book-match is a separate, planned product, not just a design with fewer faces.
What makes book-match harder to supply
A book-matched pair only works if both slabs are perfect and arrive together. That puts extra demands on the factory and the supply chain:
- The printer must run the design and its mirror in the right order, and the line must keep them in sequence through firing, polishing and sorting.
- Both slabs in a set must come from the same batch, shade and calibre, or the joint will show a colour step.
- If one slab in a set is rejected at sorting, the whole set is affected, so yields are lower than for random designs.
- Sets must be numbered and packed together in the same crate, in the right order.
- Fitters must lay each slab in its marked position and orientation.
Effect on lead time and cost
These points affect lead time and cost, so ask about them early. Our guide on custom designs for porcelain slabs covers designs made only for you.
What to agree with the factory
- Whether the design is offered as two-way, four-way or continuous match, with a layout drawing.
- How sets are numbered, for example "set 12, slab A and slab B", and how that number appears on the slab back and on the crate.
- That each set is one batch, one shade and one calibre, and that every set in the order matches the approved sample.
- How a broken slab is replaced: as a single matching slab, which may be impossible, or as a whole new set.
- The packing method that keeps sets together and protects the faces.
What to check before loading
Lay out at least one complete set on a flat surface or stand it in a frame and look at the joint from a few metres away. The veins should meet cleanly, and the colours should match. Check that the set numbers on the slabs match the crate list.
An inspector can do this for you during slab inspection before loading.
Next step
We confirm the matching scheme, numbering and packing in writing, and check sets at loading. To discuss book-matched slabs for your projects, book a free sourcing review.