Choosing your interior *opus incertum*

1. What style are you looking for?

Polygonalplatte QUARTZITE ADRIATICO - Minéral Naturstein

CONTEMPORARY

Sleek lines, waxed concrete, steel

Grey-toned opus incertum creates a sleek and contemporary atmosphere, ideal for interiors with clean lines.

Meanwhile, beige hues and limestone warm up the space and bring a natural, bright, and timeless touch.

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Polygonalplatte intérieur Kalkstein Minéral Naturstein

COUNTRY HOUSE

Authenticity, charm, and tradition

Thanks to its natural look and irregular pattern, opus incertum blends seamlessly with character homes and authentic interiors. It brings relief, warmth and personality to living spaces.

Our advice: opt for natural-toned, subtly textured stones to preserve the timeless charm of your decor.

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Polygonalplatte QUARTZITE LUZERNE Minéral Naturstein

MOUNTAIN

Wood, stone and chalet spirit

Natural stones with authentic textures and mineral nuances are a must-have for mountain interiors.

They bring warmth, character, and authenticity to chalets, country houses, and alpine-style residences.

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Polygonalplatte Sandstein DORATO Minéral Naturstein

ART

Soothing and natural atmosphere

Opus incertum naturally fits into interiors where stone is highlighted.

Its irregular layout and natural hues create a warm, authentic, and timeless atmosphere, in perfect harmony with noble materials such as wood or metal.

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MEDITERRANEAN

Sand tones and Southern spirit

Naturally, one gravitates towards travertine or beige limestone. Sand, cream, and ivory hues bring warmth, brightness, and authenticity, creating a friendly, luminous, and timeless atmosphere.

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2. What level of irregularity?

The real question: prioritize a raw look or everyday comfort

Opus Incertum intérieur en pierre calcaire SOLNHOFEN Minéral pierre naturelle

Soft and non-slip surface

Walking comfort and pleasant feel

More controlled irregularity. The shapes remain natural, but the surface is smoother and more pleasant underfoot, for an authentic look with enhanced comfort.

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Polygonalplatte PHYLLITE Minéral Naturstein

Gross area

Natural relief and authentic character

A more pronounced relief. Random shapes and natural texture enhance the authentic character of the stone and offer a traditional look.

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3. WHAT COLOR TO CHOOSE FOR YOUR opus incertum?

Opus Incertum intérieur en pierre calcaire SOLNHOFEN Minéral pierre naturelle

BEIGE
Beige opus incertum brings warmth, brightness, and authenticity, creating a natural and timeless atmosphere in every room of the house.
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Polygonalplatte KANDLA GREY Minéral Naturstein

GRAY
The gray opus incertum offers a clean and elegant finish, ideal for contemporary or industrial-inspired interiors.
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Polygonalplatte Sandstein DORATO Minéral Naturstein

SUBTLE
The varied shades of the opus incertum highlight the natural character of the stone and create a lively, authentic, and unique floor.
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4. Which laying pattern should I choose?

The real question: create an authentic atmosphere or visually enlarge the space?

Polygonalplatte Kalkstein Minéral Naturstein

SMALL POCKET NOTEBOOK

Authenticity and natural rhythm

Composed of small-sized stones, this paving adds relief and character to the room. It is perfectly suited for intimate spaces and interiors seeking a warm and authentic ambiance.

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Polygonalplatte intérieur TRAVERTIN - Grand format Minéral Naturstein

LARGE-FORMAT TILING

Generous volumes and contemporary elegance

A more pronounced relief. The random shapes and natural texture enhance the authentic character of the stone and offer a traditional look.

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5. WHICH STONE TO CHOOSE?

Opus Incertum en pierre calcaire SINAI PEARL Minéral pierre naturelle

LIMESTONE
Limestone is attractive with its light and warm tones, ideal for creating a bright and timeless interior.
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Polygonalplatte TRAVERTIN - Grand format Minéral Naturstein

TRAVERTINE
Travertine creates a warm and Mediterranean ambiance thanks to its soft hues and timeless charm.
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QUARTZITE
Quartzite combines elegance and robustness, with natural reflections that bring depth and personality to the floor.
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Polygonalplatte Sandstein DORATO - Minéral Naturstein

Sandstone
Sandstone offers an excellent balance of authenticity, durability, and ease of maintenance, adapting to all decor styles.
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Polygonalplatte PORPHYRE - Minéral Naturstein

PORPHYRY
Porphyry stands out with its authentic appearance and natural shades, perfect for interiors with character.
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SLATE
Slate brings a contemporary style thanks to its deep hues and strong mineral character.
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Answers to your questions about indoor opus incertum?

How to lay crazy paving?

Laying flagstones in an opus incertum pattern requires method and preparation. The subfloor must be stable and well-prepared. Indoors, it is possible to glue them onto a thin screed.

Before fixing the stones, it is advisable to dry-lay them to anticipate the connections and joint sizes. The length of the stones varies: some can be recut to optimize the arrangement.

Joints can be wide (for a rustic effect) or thin (for a contemporary look). The choice of joint color is also an important point for the final aesthetic.

How to maintain flagstone (opus incertum) paving?

The maintenance of opus incertum flagstones depends on the type of stone and its use. To preserve their appearance over time, it is recommended to use products suitable for natural stone, avoid acidic cleaners, and apply a water repellent if necessary.

Find all our cleaning, protection, and maintenance tips in our indoor natural stone maintenance guide.

What are the specific features of the indoor *opus incertum* offered by Minéral?

The natural stone opus incertum market is vast, with a wide variety of stones, finishes, and patterns. At Minéral, we have chosen to offer a curated selection of materials that we know perfectly and that we choose for their authenticity, quality, and durability.

Our opus incertum are selected for the richness of their shades, the quality of their stone, and their ability to create unique floors. Each slab has its own natural shapes and variations, offering an authentic look that brings character and elegance to all interior styles.

Because a successful project relies on true harmony, our opus incertum can generally be combined with copings, steps, wall caps, pavers, or flagstones made from the same natural stone. For specific projects, custom cuts and fabrications are also possible.

Our direct relationship with quarries and producers allows us to control the quality of the materials from their origin while limiting intermediaries. This approach guarantees an excellent quality-price ratio, long-term availability of references, and a selection of stones that meet our requirements.

Our ambition is simple: to offer natural stone opus incertum that we would still choose for our own projects today, and that we will continue to recommend in the years to come.