The plant

A block that leaves the bench in the morning is on the gang saw that afternoon. The plant stands between Adriakamen and Plano Lithos, so the stone travels less than a kilometre to its first sawn face and never changes hands.

A diamond blade in a slab of Plano. Water cools the cut the whole way through, so the stone does not overheat, the edge stays clean and no dust is thrown.Bridge saw, the plant at Plano

Read on

The block never changes hands

Between the face in the rock and the panel on the building the stone never changes company. That is why any finished surface can be traced back to the block it was cut from, and to the bench that block came off.

When a facade has to read the same from the ground floor to the cornice, that is not paperwork. It is the only way the colour actually stays the same.

The Sprega Kamen plant from the air: the blue-roofed hall, the yellow gantry crane and a yard full of sawn blocks, with the village of Plano and the ridge behind. — The yard, the gantry and the hall. A block goes in from the left and comes out a slab.Plano, 2026

The line a block runs

The machines are listed in the order the stone meets them. The makers are named because a maker's name is a specification: a fabricator who reads Ghines knows the tolerance that machine holds, where “modern equipment” tells them nothing at all.

Gang saws and single-blade block saws
The first cut. A block goes in whole and comes out as a stack of full-size slabs. The gang saw takes the whole block at once; the single-blade saw works with one blade, for squaring a block or for a thicker piece.
Calibrating machine
SIMEC
Thickness is made even across the whole face. Without it a laid floor is felt underfoot before it is seen, and the adhesive bed behind a cladding panel is never the same depth twice.
Bridge saws
Bombieri & Venturi, GMM, Tagliablocchi
The slab is brought to size: what is on the drawing is cut out of it, tread by tread, sill by sill. This is the machine in the film at the top of the page.
Edge polisher
The edge is worked along its whole length in a single pass. On a tread, a sill or a coping it is the part that is both seen and touched.
Profiling machine
Ghines
Bullnoses, grooves and moulded edges, where an element is not a flat slab: cornices, sills with a drip groove, pool edges.

What leaves the plant

The same stone, in the four forms it leaves the yard in. The list is a specification rather than a description: if what you have drawn is on it, we make it.

Blocks
Stone as it leaves the bench, cut free with diamond wire and squared into a regular block. It is sold this way too, unsawn.
Gang-sawn slabs
The block reduced to full-size slabs, in the thickness the project asks for. They are kept in the order they were sawn, so the figure of the stone runs on from one to the next.
Cut-to-size elements
Facade panels, floors, treads and risers, sills, pool and wall copings, thresholds and profiles, cut to the drawing and marked by position.
Setts and rock-faced stone
Paving for public ground, setts, split stone for dry-stone walling and rock-faced blocks, and technical stone for embankments and sea walls.

A moulded stone piece on a pallet in the yard, sawn slabs behind it — A profile cut into solid stone, not built up from slabs.

One face, six treatments

The finish decides how much light the stone gives back and how it behaves underfoot. Polished, it mirrors and deepens in colour; bush-hammered, it is broken open and lightens. Between them are three degrees of roughness, chosen by whether the surface will ever be wet.

Honing
A flat matt face with no shine, the finish most often laid indoors.
Polishing
The face is closed to a mirror and the stone gives back the colour it has when wet.
Brushing
The softer grain gives under the brush before the harder does, so the face takes a low relief. Also called antique finish.
Sandblasting
A finely rough, even face that does not become slippery in the rain.
Bush-hammering
The face is broken into small strikes. The roughest finish, and the one that lightens the stone most.
Combined passes
Sandblasted then brushed, bush-hammered then brushed, coarse bush-hammered then brushed. The second pass takes the edge off the first, so the face keeps its grip underfoot without being harsh to the hand. Most of the nine finishes listed on each stone come from here.

Finishes on Plano Finishes on Dolit

When an element is not a flat slab

Volutes, cornices, moulded arcs and solid pieces are carved here and leave by the same door as the floor slabs. For ventilated cladding the panels are kerfed and drilled for anchors, to the drawing, each piece marked with its position.

Two carved volute brackets in Plano limestone on pallets in the yard, sawn slabs stacked behind them — Carved volutes on pallets, before dispatchPlano

A segment of a stone arc on a pallet in the yard — A segment of an arc. No straight saw gives you this.

Where it stands

Put Karanušića 73, Plano. Adriakamen and Plano Lithos are a few hundred metres from here; Dalmalit is some fifty kilometres to the south-east, in the hills behind Omiš, and that is where Dolit comes from. Slabs can be seen here before they are ordered, and for a large surface we recommend it.

Sprega Kamen d.o.o.
Put Karanušića 73
21220 Plano, Croatia
+385 21 457 303
spregakamen@sprega.hr