Fabric that can withstand the crowd. How should architects select upholstery for heavily used spaces?

Fabric is one of the first elements users notice and one of the first to reveal design mistakes.

It can add depth to a piece of furniture, calm a large interior, emphasise the geometry of a seat or bring scattered elements of an arrangement into one coherent system. In heavily used interiors, however, its task is much more demanding. It has to retain its appearance after thousands of contacts with clothing, bags, cleaning agents, sunlight and accidental stains. It must withstand loads that cannot be assessed from a small sample viewed in a design studio.

In a hotel, fabric works around the clock. In a school, hundreds of people use it every day. In a reception area, public office, restaurant or office lobby, users change more frequently than they do in a home, and the furniture is rarely treated with the same care.

For this reason, selecting fabric for a contract interior should not begin with colour. The first step is to understand how the space will be used, what types of stains are likely, what fire-safety requirements apply and how the building will be maintained. Only then is it worth opening the sample book.

“Heavy use” does not mean the same thing everywhere

A chair in a conference room, an armchair in a hotel lobby and a sofa in a school entrance hall may all be used every day, but each setting places a different type of strain on the fabric.

A conference room involves frequent but relatively short sitting cycles. A restaurant brings the risk of greasy stains, spilled drinks and intensive cleaning. In a hotel, stain resistance, colour fastness and compliance with fire-safety requirements become particularly important. In a school or university, additional pressures include frequent movement, contact with backpacks, zips, metal clothing elements and forms of use that are difficult to predict.

Before selecting a material, it is therefore worth defining not a broad category such as “contract fabric”, but a specific usage profile.

The following should be established:

how many users will use the furniture each day,
how long an average period of use will last,
whether the interior is supervised,
which types of stains are most likely,
how often the furniture will be cleaned,
whether the material will be exposed to strong light,
whether the building is subject to specific hygiene or fire-safety requirements.

The same fabric may perform very well in a meeting room and fail completely in a canteen. A technical parameter has no meaning without context.

Martindale is the beginning of the conversation, not the final verdict

The parameter checked most often is abrasion resistance, expressed in Martindale cycles. The ISO 12947-2 method is used to determine when a sample subjected to repeated rubbing becomes damaged. The higher the result, the greater the declared resistance of the material to that specific type of wear.

In public interiors, it is worth looking for materials designed for contract use. KLEIBER points out that a level typical of domestic fabrics, often around 15,000–25,000 cycles, may be insufficient in public settings. In such projects, the reference point often begins at approximately 50,000 cycles.

It should not be assumed, however, that a material rated at 100,000 cycles will automatically be twice as good as one rated at 50,000.

The Martindale test measures abrasion resistance under laboratory conditions. On its own, it does not tell us:

how quickly the material will begin to pill,
whether threads will shift at the seams,
whether the colour will withstand sunlight,
whether the surface will absorb stains,
how the fabric will react to repeated cleaning,
whether a synthetic coating will begin to crack,
how the finished upholstery system will perform: fabric, foam, adhesive and furniture structure.

A high Martindale rating provides important information. It does not provide a complete picture of durability.

Pilling: a piece of furniture may remain functional while looking worn

A fabric can achieve a very good abrasion-test result and still lose its visual quality quickly. One possible reason is pilling, which is the formation of small balls and tangled fibres on the surface.

In a commercial interior, this matters greatly. Users do not analyse technical data sheets. They see a pilled surface and assume that the furniture is old or poorly maintained.

The ISO 12945 series describes methods for testing a fabric’s tendency to pill, fuzz and felt. The assessment covers not only the process itself, but also the visibility of the changes on the surface.

For an architect, the key information is not simply the reference to a standard, but the rating achieved. The higher the grade, the better the material retains its appearance. For heavily used furniture, fabrics with high pilling resistance should be preferred, especially on large, smooth seat and backrest surfaces where any change is clearly visible.

Colour also matters. Light fibres and signs of wear may be more noticeable on a dark, uniform fabric than on a mélange. A technically durable material is not always visually forgiving.

The seam is where the sample data ends

Designers often assess the parameters of the fabric itself, while a finished piece of furniture is exposed to the greatest strain at joints, folds and tension points.

A fabric may offer very high abrasion resistance, but if its weave shifts easily, gaps or distortions may begin to appear near the seams. ISO 13936 describes methods for testing the resistance of yarns in woven fabric to slippage at seams. This parameter is particularly important for looser weaves, highly textured fabrics and furniture with strongly profiled shapes.

For complex forms, it is worth asking the manufacturer not only whether a fabric is approved for contract use, but also how it performs on the specific model.

A material that fits well on a straight sofa may behave less effectively on a shell chair with tight curves, multiple seams and deep folds. Fabric is not applied to an abstract test sample. It is applied to a specific geometry.

The selection process should therefore consider:

the direction of stretch,
weave stability,
material thickness,
tendency to wrinkle,
the radii and folds of the form,
seam placement,
the upholstery method used for the specific model.

The safest technical decision may require a prototype or trial upholstery, particularly when the design specifies a material outside the manufacturer’s standard collection.

Colour should last longer than a single season

In a visualisation, colour remains identical regardless of where the furniture is placed. In a real interior, one part of a sofa positioned near glazing may look different after several years from the section that remains in the shade.

ISO 105-B02 specifies a method for testing the colour fastness of textiles to artificial light representing daylight. This parameter is particularly important in lobbies, atriums, restaurants, waiting areas and other interiors with extensive glazing.

When selecting a material, it is worth considering not only its declared light fastness, but also:

the orientation of the interior,
the distance between the furniture and the glazing,
the presence of blinds or solar-control coatings,
the intensity of the colour,
the possibility of replacing individual modules in the future.

Highly saturated shades often require more caution than neutral mélanges. This does not mean they should be avoided. It does mean that their location should be chosen consciously, with the risk of uneven fading in mind.

Colour fastness to rubbing is a separate parameter. ISO 105-X12 examines whether the colour of a material wears off or transfers to other surfaces under friction. This matters both for pale fabrics exposed to dark clothing and for intensely dyed materials that may leave marks.

Cleaning should be designed together with the interior

The phrase “easy to clean” can mean very different things.

One fabric allows most fresh stains to be removed with water. Another tolerates selected detergents. A third can be disinfected with alcohol-based agents, but only at a specified concentration. Another may resist staining well, yet begin to change colour or texture after frequent scrubbing.

For the architect, the most important task is to connect the material with the building’s actual maintenance system.

Before approving a fabric, it is worth establishing:

who will clean the furniture,
which products will be used,
how often cleaning will take place,
whether the staff use spot, extraction or steam cleaning,
whether disinfectants are required,
how long the material can remain wet,
whether the covers can be removed or replaced.

It is not enough to provide the building manager with a general statement that the fabric is stain-resistant. Cleaning instructions should form part of the as-built documentation.

In healthcare, education, hospitality and food-service interiors, caution is also needed with unverified claims concerning “antibacterial” properties or resistance to all disinfectants. Every such property should be supported by the manufacturer’s documentation and related to specific cleaning agents.

Fire resistance applies to the furniture, not just a fabric swatch

In contract projects, fire safety is often reduced to the information that a selected fabric is “flame-retardant”. That is not enough.

The EN 1021-1 and EN 1021-2 standards concern the ignitability of upholstered furniture when exposed respectively to a smouldering cigarette and a flame equivalent to that of a match. The test evaluates the combination of upholstery material and filling, not merely the fabric considered separately from the construction.

This difference has design consequences.

A fabric that achieves a particular result when used with one type of foam may not behave identically with another filling, backing or adhesive. The documentation should therefore refer to the actual configuration used in the furniture.

The requirements must also be checked for the relevant country and type of building. A hotel, theatre, healthcare facility, school and standard office may be subject to different fire-safety design requirements and different investor expectations.

The safest procedure is as follows:

define the requirements for the building,
specify the relevant standard or classification,
verify documentation for the complete material combination,
confirm that the fabric may be used on the selected furniture model,
include the requirement in the specification, not only in the concept description.

A water-repellent material does not solve every problem

Coatings that reduce liquid absorption can be very useful in restaurants, hotels, lounge areas and educational interiors. They give staff more time to react and make fresh stains easier to remove.

They do not, however, make a fabric indestructible.

Impregnation may weaken over time under the influence of use and cleaning. Liquid may also enter through a seam, zip or material junction. A stain left for several hours may behave differently from one removed immediately.

It is therefore worth asking:

whether the property comes from the fibre structure or a surface treatment,
whether it can be renewed,
how frequent cleaning affects it,
which substances are covered by the manufacturer’s declaration,
whether the material remains breathable,
whether the coating changes the feel or appearance of the surface.

In a contract specification, it is better to avoid terms such as “stain-proof” or “waterproof” unless the test conditions are clearly defined. A precise parameter is more useful than a marketing claim.

Texture can conceal use or emphasise it

The choice of pattern and texture has not only an aesthetic dimension, but also an operational one.

Uniform, very smooth fabrics clearly reveal stains, localised wear and differences in fibre direction. Mélange fabrics and small patterns conceal minor stains and natural signs of use more effectively. A pronounced texture can visually disguise wear, but may be more difficult to clean thoroughly.

Materials with a visible pile also require caution. A change in pile direction can create the impression of different shades between adjacent elements, even when the fabric comes from the same batch. On large modular sofas, this effect can be interesting, but it should be consciously accepted rather than discovered after installation.

In heavily used interiors, materials that do not attempt to remain visually perfect often perform well. A subtle mélange, an irregular weave or slight colour variation can accommodate the passage of time more gracefully than a perfectly smooth surface.

A light-coloured fabric is not necessarily a mistake

Designers often reject pale upholstery at the very beginning, assuming it will not work in a public interior. This is too simplistic.

A pale fabric with a compact structure, good colour fastness and a proven cleaning system may perform better than a dark, strongly textured material that clearly shows dust, fibres and every abrasion mark.

Colour should be assessed together with:

the type of weave,
the material composition,
susceptibility to staining,
cleaning instructions,
lighting,
intensity of use,
the possibility of replacing the upholstery.

Black and graphite are not automatically “safe”. In a brightly lit lobby, they may reveal dust and the shine that develops on the most frequently used areas. White and pale beige are not automatically impractical, but they require a well-organised maintenance system.

A specification should not end with the collection name

In construction documentation, the manufacturer’s name, collection and colour reference alone are not enough.

A good fabric specification for a heavily used interior should define at least:

material composition,
weight,
abrasion resistance and the test method used,
pilling resistance,
colour fastness to rubbing,
colour fastness to light,
requirements concerning seam slippage, where relevant,
fire-safety requirements,
permitted cleaning and disinfection methods,
required certificates,
colour and material orientation,
the requirement to approve a sample,
the procedure for material substitutions.

The final point is particularly important. Replacing a specified material with “a fabric of similar parameters” may result in a product with a comparable Martindale rating but different stretch, poorer pilling resistance or different fire-safety properties.

Equivalence should be assessed on the basis of the full parameter set and compatibility with the specific furniture model.

Do not design from a hand-sized sample

A small sample shows colour and weave well. It does not show the scale of the pattern, the way light reflects from a large surface or how the material behaves on curves.

For larger projects, it is worth ordering a larger length or viewing a finished piece of furniture upholstered in the selected fabric. This is especially important for:

intense colours,
materials with a pile,
large pattern repeats,
fabrics with an irregular weave,
highly stretchable materials,
glossy finishes,
contrasting combinations of several colours on one piece of furniture.

The sample should be viewed in the intended lighting conditions. The same grey material can look cool in daylight, greenish under one colour temperature and almost beige under another.

A colour approved only on a screen is not a colour approved for production.

Fabric forms part of the whole-life cost

A cheaper material may reduce the purchase cost while increasing the cost of use.

If it pills more quickly, is difficult to clean or needs replacing after two seasons, the saving becomes illusory. Additional costs include reupholstery, taking the furniture out of service, service work and the risk that a particular colour or collection will no longer be available after several years.

It is therefore worth asking not only about the price per linear metre, but also about:

the expected service life,
the availability of the collection in future years,
the possibility of purchasing additional material,
the option of replacing individual upholstered elements,
the cost and frequency of cleaning,
warranty conditions,
the possibility of reupholstering the furniture.

In a contract approach, the material is not decoration for the handover day. It is a working surface that must perform throughout the entire life cycle of the interior.

A good fabric does not draw attention through wear

The best upholstery material for a heavily used interior does not need to achieve the highest score in every table. Its parameters should be well matched to the specific setting.

In a conference room, comfort and visual stability may be the priorities. In a restaurant, cleaning and stain resistance. In a hotel, the combination of aesthetics, fire-safety compliance and colour fastness. In a school, abrasion resistance, pilling performance and ease of maintenance. In a representative lobby, the way the material ages in daylight also matters.

The architect’s role is therefore not to find the “strongest” fabric, but to define the right questions and parameters.

A well-selected material retains its colour, structure and tension. It can be cleaned in line with the building’s operating rhythm. It works with the geometry of the furniture. It meets safety requirements. After several years, it still looks like a deliberate part of the design rather than a surface defeated by everyday use.

That is when fabric truly works for the interior.

FAQ

What Martindale rating should a fabric for a public interior have?

There is no single value suitable for every project. In heavily used interiors, a minimum of approximately 50,000 cycles is often adopted, but the result should be matched to the function, number of users and furniture construction. The Martindale rating alone is not sufficient for a complete durability assessment.

Is a fabric rated at 100,000 cycles always better than one rated at 50,000?

No. The Martindale rating concerns resistance to a specific type of abrasion. A material with a higher result may offer poorer resistance to pilling, light, staining or seam slippage. Fabrics should be compared on the basis of the complete set of parameters.

What should be checked in the technical data sheet apart from Martindale?

The most important additional parameters include pilling resistance, colour fastness to light and rubbing, seam stability, composition, weight, cleaning methods and fire-safety requirements. In certain buildings, resistance to disinfectants may also be important.

Does a flame-retardant fabric guarantee that the furniture complies with the requirements?

Not always. In ignitability testing, the configuration of the entire upholstery system matters, including the fabric and filling. Documentation should be verified for the specific application, furniture model and requirements applying to the building.

Which fabrics conceal signs of use most effectively?

Mélanges, small patterns and surfaces with subtle irregularity usually perform well. Smooth, uniform materials reveal stains, wear and changes in fibre direction more clearly. This does not mean, however, that they are always less durable.

Are light-coloured fabrics suitable for heavily used interiors?

Yes, provided they have an appropriate structure, high performance parameters and clearly defined cleaning procedures. A material’s practicality depends not only on colour, but also on weave, composition, finish and the way the building is maintained.

Can fabric be selected solely from a sample book?

For small projects, this may sometimes be sufficient, but in larger schemes it is worth viewing a large section of material or a finished upholstered piece of furniture. A small sample does not show how the fabric behaves on the form, the scale of the pattern or how the colour performs in the intended lighting.

How should fabric be described in a project specification?

In addition to the collection and colour, the specification should define the required technical parameters, standards, cleaning methods, fire-safety requirements, orientation and rules for approving substitutions. Any material replacement should require confirmation of compatibility with the specific furniture model.