When designing a hotel, restaurant, bar, care home, office, or public space, fabric selection is about far more than colour, texture, and pattern.
In commercial interiors, curtains and upholstery also need to perform safely.
That is where FR ratings come in.
FR stands for fire retardant, and it refers to how a fabric performs when exposed to flame or ignition. For interior designers, contractors, operators, and furniture buyers, understanding FR ratings is essential when specifying curtains, blinds, upholstery, cushions, banquette seating, and other soft furnishings.
Why FR Ratings Matter
In a domestic setting, fabric choice is usually led by style, comfort, and budget.
In a commercial setting, those things still matter, but safety and compliance become equally important.
Hotels, restaurants, bars, offices, healthcare settings, schools, care homes, and public venues are used by large numbers of people every day. This means there is a greater duty to reduce fire risk wherever possible.
Using the wrong fabric can create serious problems, including failed inspections, insurance issues, project delays, expensive replacements, and potential liability if an incident occurs.
FR Curtains and Drapery
Curtains, blinds, and drapes are usually tested differently from upholstery fabrics.
In the UK, curtain fabrics for commercial and public spaces are commonly specified to BS 5867 Part 2, which assesses the flammability performance of fabrics used for curtains, drapes, and blinds.
You may see fabrics referred to as:
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BS 5867 Part 2 Type B
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BS 5867 Part 2 Type C
Type B is commonly used for many commercial curtain applications, while Type C is generally a higher-performance classification often used where repeated washing or more demanding conditions are expected.
This is particularly important in hotels, care environments, healthcare settings, education, and any space where curtains may be regularly cleaned or handled.
FR Upholstery Fabrics
Upholstery is different because the fabric is only one part of the finished product.
A chair, sofa, bar stool, or banquette is made up of several components, including:
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Outer fabric
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Foam
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Interliner, if required
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Webbing
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Frame
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Fillings
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Adhesives and finishes
For commercial upholstery, you will often see references to BS 5852, Crib 5, and BS 7176 Medium and High Hazards.
In simple terms:
BS 5852 is a test method used to assess how upholstered seating materials respond to ignition sources.
Crib 5 is a commonly specified ignition test level for contract upholstery in commercial environments.
BS 7176 helps classify upholstered seating according to the level of fire risk in its intended environment.
This matters because a fabric may pass a test in one configuration but not another. The same fabric could behave differently depending on the foam, interliner, or upholstery build-up used.
What Does Crib 5 Mean?
Crib 5 is one of the most commonly recognised FR terms in contract furniture.
It refers to a more demanding ignition test than a cigarette or match test and is often requested for hospitality, workplace, leisure, and other commercial environments.
For designers and operators, Crib 5 is often seen as a minimum expectation for contract upholstery, but the correct requirement should always be confirmed for the specific project, building type, fire strategy, insurer requirements, and end use.
Inherently FR vs Treated FR Fabrics
Not all FR fabrics achieve their performance in the same way.
Some fabrics are inherently FR, meaning the fire-retardant properties are built into the fibre itself.
Others are treated FR, meaning a fire-retardant treatment has been applied to the fabric after manufacture.
Both can be suitable, but it is important to understand the difference.
Inherently FR fabrics may offer longer-lasting performance, particularly where cleaning, wear, and heavy use are expected. Treated fabrics can also work well, but the treatment may be affected by washing, cleaning chemicals, moisture, or abrasion, depending on the product and certification.
Always check the certificate and ask whether the fabric is suitable for its intended use.
Why Certificates Matter
A fabric description alone is not enough.
For commercial projects, you should always request relevant FR certification and check that it matches the intended application.
For example, a certificate for curtain use does not automatically mean the same fabric is suitable for upholstery.
A certificate should ideally confirm:
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The standard tested to
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The date of test
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The fabric name and reference
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The colour or range tested
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Whether the fabric is inherently FR or treated
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The intended end use
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Any limitations around cleaning or washing
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Whether an interliner is required
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The upholstery components tested, where applicable
This is especially important on hospitality, care, healthcare, education, and public-facing projects.
Common Mistakes to Avoid
One of the most common mistakes is assuming that a beautiful fabric can be used anywhere.
A domestic curtain fabric may not be suitable for a hotel bedroom.
A residential upholstery fabric may not be suitable for a restaurant chair.
A fabric labelled “FR” may only be certified for curtains, not upholstery.
A treated fabric may lose performance if washed incorrectly.
A fabric may require an interliner to achieve the correct rating.
These details matter.
They can affect safety, compliance, insurance, cost, lead time, and the long-term success of the project.
FR Ratings and Design Freedom
The good news is that commercial compliance does not mean compromising on design.
Today’s contract fabric market offers a huge range of FR options, including velvets, weaves, faux leathers, leathers, sheers, blackouts, textured fabrics, patterned fabrics, recycled fabrics, and performance textiles.
With the right advice, designers can still achieve a beautiful interior while meeting the practical requirements of a commercial environment.
How HIGH Contract Interiors Can Help
At HIGH Contract Interiors, we work with interior designers, hoteliers, restaurant operators, contractors, and commercial clients to supply and manufacture furniture and soft furnishings suitable for demanding commercial environments.
We help clients consider not only how a product looks, but how it performs, how it is certified, and whether it is appropriate for the space it is going into.
From contract upholstery and bespoke banquette seating to hotel curtains, restaurant seating, bar stools, lounge furniture, and care home furniture, we can support specification, sourcing, manufacturing, and delivery.
Final Thoughts
FR ratings are not just paperwork.
They are a critical part of responsible commercial interior design.
Understanding the difference between curtain standards, upholstery standards, Crib 5, treated fabrics, and inherently FR fabrics helps protect the client, the designer, the operator, and the people using the space.
In commercial interiors, beautiful fabrics still matter.
But safe, compliant, fit-for-purpose fabrics matter even more.
