Natural Stone Installation Without Limits — Why the First Cut Happens on Screen

What Physical Dry-Lay Actually Costs

Every natural stone slab is unique. Slabs from the same block can differ so markedly in veining and colour depth that placed side by side they either create a harmonious composition or actively work against each other. That is precisely why physical dry-lay has been the industry standard for decades — slab by slab, vein runs checked, reordered, photographed, and sent to the architect for sign-off.

The problem is not the method itself, but the effort involved. A project covering just 120 square metres can generate an enormous amount of time spent on dry-lay alone. Add to that the logistics: natural stone slabs weigh between 30 and 80 kilograms per square metre. Every time a slab is repositioned, there is a risk of chipping edges or breaking corners — damage that can render a slab completely unusable for the project. If the architect is not on site, a digitally transmitted photo becomes the only basis for a decision — with no scale, no context, and no ability to rearrange anything.

On international projects, that effort becomes a full stop. When the architect is in New York, fabrication happens in Italy, and installation is planned for Atlanta — physical dry-lay fails on geography alone. In the past, teams tried to lock in the desired range using sample slabs. But small samples cannot convey the overall impression of a large surface. Using full-size raw slabs to communicate the range is possible only in limited quantities — far too few to represent the character of a 400-square-metre facade.

Yield is the single greatest economic risk for stone producers. It must be calculated accurately before the project begins to produce a sound estimate. When that fails, the producer takes on a risk that either shows up in the financials or, ultimately, in the quality of the stone delivered. Knowing what will be cut before the first cut is made is how the costliest mistake gets avoided: destroying a slab that cannot be replaced.

Three Perspectives — Who Benefits and How

Yield Is Everything — Why Digital Planning Reduces Waste

Avoiding waste in expensively sourced slabs is the paramount concern for every stone producer. In a traditional project workflow, the architect defines a range — the acceptable band of veining and colour tone. This early decision routinely excludes areas of the slab that occur naturally and frequently. The result: the proportion of waste within a project rises considerably.

Digital layout planning opens a different path. With real slab photos on screen, it becomes possible to work with areas the architect might initially dismiss. Through digital dry-lay, the overall harmony of the stone composition can be made visible. Often, the result is a more natural and more striking finished surface. Waste within the project drops substantially. Production costs for the fabricator fall, and a more competitive price for the overall project becomes achievable. The flip side is equally significant: the stone the architect originally specified stays in the project, rather than being substituted for a cheaper alternative to make the numbers work.

Lasa Marmo, an international natural stone producer from South Tyrol, has been working with digital layout planning for five years. The entire production workflow — from slab selection through cutting planning to CNC export — runs digitally. The result: approximately 20 percent cost savings across planning, material and production. Today, no project starts there without digital planning. Lasa Marmo projects typically involve architects, producers and installers across different countries and sometimes different continents — working from an identical data set, the same slab photos, the same plan.

A candid note: digital planning does not replace physical dry-lay in every case. A single kitchen countertop does not require digital layout planning. The method pays off on projects with complex geometries, facades requiring vein continuity, and international collaborations — wherever a mistake costs three days rather than three minutes. And starting out demands discipline: every slab needs to be photographed and logged once. Digital capture can be rolled out incrementally, in step with what production schedules allow. Once captured, each slab is identified by a barcode — making it immediately clear at a glance what has already been digitised and what still needs to be done.

For the digitisation process, operations typically target periods when staff have free production cycles. These are used systematically for slab capture until the entire inventory has been digitised.

Three Steps to Digital Layout