Fabrics & Upholstery

How to Read a Furnishing-Fabric Specification Sheet

13 min read AMALI Editorial Team

A furnishing-fabric specification sheet can look authoritative while still being easy to misread. A width, composition and large abrasion number may appear sufficient, yet they do not answer whether the fabric fits your curtain, sofa, hotel room or wall-panel application.

Every line has a particular purpose. Some fields describe identity and appearance; others affect quantity, fabrication, care or performance. A test result is useful only when its method, scope and intended application are understood.

This guide explains how to read a furnishing-fabric specification sheet from top to bottom, identify missing information and turn technical data into a practical selection decision.

The quick answer: read the sheet in five groups

Do not scan only for composition and abrasion. Read the document in five connected groups:

  1. Identity: supplier, collection, design, colour, code, revision and batch information.
  2. Construction: fibre content, weave or knit, weight, backing, finish and surface character.
  3. Dimensions: usable width, vertical and horizontal repeat, direction, roll length and pattern layout.
  4. Performance: intended use, test methods, results, classifications and limitations.
  5. Maintenance and compliance: care method, applicable standards, certificate scope and project-specific documentation.

The final question is not “Is this a good fabric?” It is “Does this exact article, in this colour and construction, meet the requirements of this particular application?”

What is a fabric specification sheet?

A specification sheet—or technical data sheet—is a supplier document that records defined characteristics of a textile. It supports selection, estimating, fabrication, approval and maintenance. Depending on the supplier and market, information may be spread across a product page, downloadable PDF, test report, care guide and certificate rather than one page.

The sheet is not the same as a physical sample. The sample shows colour, texture, drape and scale; the specification provides information that cannot reliably be judged by sight. Both are required for an informed decision.

Start with product identity and document control

Before interpreting performance, confirm that the sheet belongs to the fabric being offered. Similar collection names and colour codes can easily be confused, particularly when a supplier updates a construction while retaining familiar branding.

Supplier, collection, design and colourway

Record the supplier or manufacturer, collection name, pattern or article name, colourway and stock code. The colourway matters because certain performance data—especially lightfastness, print retention or dye-related results—may not automatically represent every colour.

Issue date and revision

Look for a publication date, revision number or last-updated date. A current product page may supersede an old binder sheet. For professional projects, save the approved revision so the procurement and installation teams work from the same information.

Batch, dye lot or production lot

A general technical sheet describes the article, not necessarily the precise shade of a production batch. Where several rolls must match, record the offered batch references and approve production material according to the project process.

Confirm the intended application first

Application is the most important field because it determines which other data matters. Common declarations include curtains or drapery, upholstery, cushions, bedding accents, wrapped panels and wallcovering. Residential and contract uses may be distinguished.

Do not assume “furnishing fabric” means suitable for every interior use. A curtain fabric does not experience repeated sitting and seam stress; an upholstery textile may be too stiff or heavy for the required curtain drape. If the intended use is absent, request written confirmation.

How to read fibre composition

Composition lists the fibres present by percentage, such as polyester, cotton, linen, viscose, wool or nylon. It helps explain handle, dyeing, moisture response and care, but it is not a complete performance prediction.

Face, pile, ground and backing

Pile or coated textiles may separate the wear surface from the supporting construction. A velvet might list a pile composition and a different ground; an artificial leather may list the face polymer and textile backing. Read which percentage describes which layer.

Why percentages are not enough

Two fabrics with identical percentages can perform differently because fibre placement, yarn construction, density, finishing and backing differ. Use composition to understand the textile—not to declare it durable, washable, stain-resistant or sustainable.

Construction, weave and surface

The construction field may identify woven, knitted, non-woven or coated material and may add terms such as plain weave, twill, jacquard, chenille, velvet or boucle. These descriptions reveal how the surface is made and what should be examined in the sample.

  • Woven: perpendicular warp and weft yarn systems; inspect density, floats, fraying and seam behaviour.
  • Knitted: interlocking loops; inspect stretch, recovery and dimensional control.
  • Pile: a raised wear surface; inspect direction, crushing, shedding and pressure marking.
  • Coated: a polymer wear surface over a substrate; inspect flexing, adhesion, cleaning compatibility and product-specific ageing considerations.

A descriptive construction name is not a test result. “Heavy-duty chenille” or “performance velvet” still needs supporting data and a defined end use.

Fabric width and usable width

Width is normally stated in centimetres or inches. Confirm whether it includes the selvedges and whether the decorative or usable area is narrower. Fabric listed at 140 cm may not provide 140 cm of usable patterned face after excluding margins.

Width affects panel joins, furniture cutting layouts and consumption. Wide-width curtain fabric may be designed for a different orientation from conventional-width goods. Never calculate quantities before width, direction, repeat and seam allowances are all known.

Understanding fabric weight

Weight may be expressed as grams per square metre (GSM or g/m²), grams per linear metre, ounces per square yard or ounces per linear yard. These units are not interchangeable without the fabric width and correct conversion.

Area weight vs linear weight

GSM measures the mass of one square metre. Grams per linear metre measures one metre along the roll at that roll’s width. A linear-metre figure will therefore change when the same construction is made wider, while its GSM may remain similar.

What weight can and cannot tell you

Weight helps anticipate body, handling and transport and can support comparisons within a related collection. It does not by itself prove opacity, abrasion resistance, blackout, acoustic performance or upholstery suitability.

Pattern repeat and motif direction

Vertical repeat measures how far the motif travels before repeating along the roll. Horizontal repeat measures repetition across the width. A specification may also identify straight match, half-drop or another offset arrangement.

Repeat affects pattern matching and therefore consumption. Direction determines which edge becomes the top and whether motifs remain upright. A zero repeat may mean a plain or all-over non-matched surface, but confirm rather than assuming.

What “railroaded” or “shown railroaded” means

A railroaded fabric is used with the roll width running along the length of the application rather than in the conventional top-to-bottom orientation. This may reduce seams on a long sofa, banquette or headboard.

“Shown railroaded” can describe how a product image is presented; “can be railroaded” indicates suitability for rotated use. Those statements are not identical. Confirm design direction, construction, stretch and supplier guidance before changing orientation.

Backing, finish and additional treatment

Backing

Backing may stabilise a textile, support upholstery, limit fraying or contribute another function. Common descriptions include acrylic, latex, knit or impermeable backing. It can affect hand, drape, breathability, sewing, adhesive compatibility and cleaning.

Finish

A finish may be applied for water repellency, stain release, antimicrobial performance, flame behaviour or another stated purpose. Read the exact claim, test evidence, substances covered, cleaning limits and whether the finish is standard or optional.

“Available with treatment”

This wording does not mean the offered roll already has the treatment. It may involve a separate order, minimum quantity, added cost, lead time or change in appearance and care. Obtain the treated-sample approval and relevant documentation for the supplied configuration.

How to read abrasion results

Abrasion testing measures surface wear under a defined laboratory method. Common upholstery methods include Martindale cycles and Wyzenbeek double rubs. The numbers are not directly interchangeable, and results should not be treated as a countdown to failure in a real room.

Read the method, result, endpoint or rating, pressure or abradant where supplied, and declared usage classification. A high figure cannot compensate for poor pilling, seam problems, snagging, unsuitable cleaning or an application the supplier has not approved.

Pilling, seam and physical-property tests

Physical-performance fields commonly found on upholstery specifications
FieldWhat it examinesWhat to verify
PillingFormation of surface pills or fuzz under a stated method.Method, scale direction, result and intended-use requirement.
Seam slippageMovement of yarns or opening near a sewn seam.Method, force, seam direction and furniture relevance.
Tensile strengthResistance to pulling force before rupture under test conditions.Warp and weft results, method and required minimum.
Tear strengthResistance to propagation of an initiated tear.Direction, method and application requirement.
Dimensional changeChange after a stated wet, heat or cleaning exposure.Procedure, percentage change and whether it matches actual care.

Rating scales do not always run in the same direction. On many textile scales a higher grade is better, but never assume: read the cited method or legend.

Lightfastness, rubbing and colourfastness

Colourfastness is not one universal result. A specification may address light exposure, dry and wet rubbing—also called crocking—washing, water or other agents. Each test answers a different question.

  • Lightfastness: resistance to colour change under a defined accelerated light exposure.
  • Dry crocking: colour transfer caused by rubbing with a dry test cloth.
  • Wet crocking: colour transfer under the specified wet-rubbing procedure.

Do not convert laboratory exposure hours into guaranteed years of service. UAE window orientation, glazing, distance from sunlight, colour and use all affect real-world exposure.

Flame-performance information requires exact scope

A flame-test reference must be read with the test designation, edition where relevant, result, specimen configuration and treatment status. “FR available” does not mean the untreated fabric passes, and one test does not establish universal legal compliance.

The result may depend on backing, interliner, foam, treatment or complete composite. For UAE hospitality and professional projects, the consultant and applicable authority should confirm the required standard and submission documents. Obtain current reports for the exact supplied construction rather than relying on a catalogue icon.

Care codes and cleaning instructions

Care information may use words, symbols or regional cleaning codes. Never interpret a symbol from memory when a manufacturer legend is available. Confirm whether the instructions apply to raw fabric, removable covers or the complete upholstered item.

  • Which routine maintenance is permitted?
  • Is spot cleaning water-based, solvent-based or professional-only?
  • Are extraction, steam or machine washing allowed?
  • Which detergents, concentrations or disinfectants are approved?
  • Does cleaning affect a finish, backing, warranty or performance claim?

A removable zip does not prove washability. Upholstery foam, adhesives, trims and fit may restrict cleaning even when the face textile tolerates a particular method.

Environmental claims and certifications

Terms such as recycled, organic, low-emission or certified need precise scope. Check the named scheme, certificate holder, certificate or licence number, product coverage, percentage claimed, issuing or certification body and validity.

A company-level certification may not certify every product. A raw-material certificate may not cover dyeing, finishing or the finished furnishing textile. Do not replace these details with broad claims such as “eco-friendly”, “non-toxic” or “chemical-free”.

How to interpret an example specification sheet

The following fictional example demonstrates the reading process. It is not an AMALI product and does not represent an offer, stock item or certification.

Illustrative specification and the questions it creates
Example fieldIllustrative entryHow to read it
ApplicationIndoor upholsteryConfirms a broad use; ask whether residential or contract classification is declared.
Composition70% polyester, 30% cottonIdentifies overall fibre proportions but not construction or durability.
Width140 cmConfirm usable width and whether selvedges are excluded.
Weight520 g/linear mThis is linear mass, not GSM; width is needed for an area-weight conversion.
RepeatV 36 cm × H 28 cmBoth directions require layout and matching allowance.
BackingAcrylicAsk how it affects sewing, care, drape and any test specimen.
AbrasionMartindale 45,000 cyclesRead the test method, pressure, endpoint and intended-use threshold; do not convert to service years.
LightfastnessGrade 5Confirm the method and scale because a grade without a standard is incomplete.
FlameTreatment availableThe base offer is not necessarily treated or passed; request the configured sample, report, cost and lead time.
CareProfessional cleaningObtain the full cleaning guide and check whether the maintenance plan is practical.

The example shows why a data sheet begins the technical conversation rather than ending it.

Red flags and missing information

  • No article code, colourway or document revision.
  • “Suitable for all applications” without defined use.
  • A test number with no named method or scale.
  • “Pass” with no test designation or specimen configuration.
  • Width without clarification of usable area.
  • Patterned fabric with no repeat or direction data.
  • “Easy clean” without an approved procedure or substance limitations.
  • “FR”, “certified” or “recycled” without supporting scope.
  • Conflicting information between the sample label, website and PDF.
  • Test evidence for a different colour, backing, treatment or product version.

A practical review workflow

  1. Write the application and project requirements before choosing a fabric.
  2. Confirm product identity and use the most current specification.
  3. Check composition, construction, backing, finish and care together.
  4. Record usable width, repeat, direction and any railroad limitation before estimating.
  5. Match every required performance criterion to a named method and result.
  6. Request missing reports, certificates, legends or clarification in writing.
  7. Review a representative physical sample in the intended room.
  8. Confirm quantity, production batch, treatment and lead time before order.
  9. Save the approved sheet, sample reference and supporting documents with the project record.

Questions to send the fabric supplier

Please confirm the current specification for [article and colour code], including intended application, composition, usable width, weight unit, vertical and horizontal repeat, motif direction, backing, finish, care instructions and applicable test methods/results. Please also identify which data applies to the exact colour, batch, backing and treatment being offered, and provide current supporting reports or certificates required for the project.

To review available options, browse the AMALI furnishing-fabric collection and request the corresponding sample and current technical information for your intended application.

Frequently asked questions

What are the most important fields on a fabric specification?

Start with exact product identity, intended use, composition, construction, usable width, repeat, direction, backing, finish, care and relevant test methods/results. The priority among them depends on the application.

Does a high Martindale result mean the fabric will last longer?

Not necessarily. It reports abrasion performance under a defined laboratory method, not years of service. Pilling, seams, snagging, maintenance, furniture design and real use also affect lifespan.

Are Martindale cycles and Wyzenbeek double rubs equivalent?

No. They are different methods and their numbers should not be converted or ranked as though they use one shared scale. Compare results against the relevant requirement for the stated method.

Is grams per linear metre the same as GSM?

No. Linear weight covers one metre along the full roll width; GSM covers one square metre. Fabric width is required to relate the two.

What if the sheet says “FR available”?

It normally signals an optional treated or configured version, not automatic compliance of the base fabric. Confirm the exact treatment, test, specimen, report, effect on appearance/care, cost and lead time.

Can one specification sheet cover every colourway?

Some construction data may apply across a collection, while dye- or colour-dependent results may vary. Ask whether each result covers the selected colour and current production version.

Does “railroaded” mean the fabric is wide width?

No. Railroading describes rotated orientation. Wide width describes the roll dimension. A conventional-width upholstery fabric can be railroaded if its construction and design permit it.

Is a technical sheet enough to approve a fabric?

No. Use it with a representative sample, project requirements and any supporting test reports or certificates. The sheet cannot fully communicate colour, texture, drape, scale or batch appearance.

The final decision

A useful furnishing-fabric specification is not a collection of impressive numbers. It is a traceable description of one product, its construction, dimensions, intended use, care and performance under named conditions.

Read identity first, application second and test data in context. Question missing methods, optional treatments and vague claims. Then connect the document to an approved physical sample and the actual room or project brief. That process turns a technical sheet into a reliable buying and specification tool.

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