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Martindale rub test explained: choosing interior fabric by end use
The Martindale rub test counts how many abrasion cycles a fabric survives before it fails, which tells you where it can be used. Typically, under 15,000 rubs suits curtains and cushions, 15,000–30,000 suits domestic upholstery, and contract use needs above 30,000, with hotel public areas commonly at 40,000 or more. Read it alongside lightfastness, fibre content and the local climate.
Key takeaways
- The Martindale rub test, defined in ISO 12947, counts abrasion cycles a fabric withstands before failure.
- Domestic upholstery typically needs 15,000–30,000 rubs, contract use above 30,000, and hotel public areas and restaurants commonly 40,000 or more.
- Abrasion results do not cover lightfastness, pilling or seam slippage, so a spec sheet needs all of them.
- Martindale cycles and Wyzenbeek double rubs come from different methods and cannot be converted directly.
What does the Martindale rub test measure?
Martindale measures abrasion resistance: the number of rub cycles a fabric withstands before yarns break or visible wear appears. It is the first number to check on any upholstery specification sheet.
The sample is mounted on a machine and rubbed in a figure-of-eight path against a standard wool abradant under a set load, following the ISO 12947 series (commonly cited as EN ISO 12947-2). Many US mills publish Wyzenbeek results instead (ASTM D4157), counted as double rubs. The two methods use different equipment and abradants, so there is no reliable conversion between them.
- Martindale does not measure pilling, colour loss or seam strength.
- A higher number than the end use needs does not make a fabric better; very durable cloths are often stiffer and drape differently.
How many Martindale rubs does each end use need?
The required rub count follows how hard the surface is used, not price or origin. The ranges below are common industry references; an owner's or hotel brand's own standard always takes priority.
| End use | Typical Martindale | Examples |
|---|---|---|
| Decorative, no abrasion | Under 10,000 | Curtains, decorative throws, fabric wall panels |
| Light use | 10,000–15,000 | Scatter cushions, occasional chairs |
| General domestic upholstery | 15,000–30,000 | Apartment living-room sofas, dining chairs |
| Contract | Above 30,000 | Heavily used family sofas, office receptions, meeting rooms, hotel guestrooms |
| Hotel public areas, F&B | Commonly 40,000+, some ranges above 100,000 | Restaurant seating, lobby sofas, banquettes, conference rooms |
For curtains, lightfastness and dimensional stability matter more than abrasion. A fabric used for both curtains and matching cushions should meet the higher of the two requirements.
Which other performance tests should a spec sheet show?
A complete sheet adds at least lightfastness, rubbing fastness, pilling and seam slippage. Without them, a high-rub fabric can still fade or split at the seams within months.
| Property | Common reference | Typical requirement |
|---|---|---|
| Lightfastness | ISO 105-B02, Blue Wool scale 1–8 | Often grade 5 or above for curtains; higher for west-facing glazing |
| Colourfastness to rubbing | ISO 105-X12, scale 1–5 | Often grade 4 dry for upholstery |
| Pilling | ISO 12945-2, scale 1–5 | Often grade 3–4 for upholstery |
| Seam slippage | ISO 13936 | Project-specific; critical for loose weaves |
| Cleaning code | Manufacturer convention (W, S, WS, X) | Must match the operator's housekeeping process |
Where fire performance is required, ask the supplier for the test report for the exact fabric code; see fire safety standards for interior fabrics.
How does fibre content affect durability and drape?
Fibre content drives handle, drape, creasing and how the cloth reacts to humidity and sun.
- Linen: breathable with a natural drape; creases easily and can change length with humidity.
- Cotton: soft and easy to dye; soils readily without a stain-repellent finish.
- Velvet: dense polyester or cotton velvets often score high on Martindale; pile direction must be consistent when cutting.
- Wool: resilient with some natural flame resistance; needs ventilation in humid rooms.
- Silk: sensitive to UV and water; protect with lining on sunny glazing.
- Viscose: fluid drape, but weak when wet and prone to stretching.
- Polyester and blends: dimensionally stable and more UV-tolerant; solution-dyed yarns hold colour outdoors.
Weave, print, plain or sheer: which construction suits which use?
Woven designs (jacquard, dobby) carry the pattern in the yarn structure and outlast prints under abrasion, which makes them the safer choice for seating.
| Construction | Curtains | Upholstery | Note |
|---|---|---|---|
| Woven pattern | Suitable | Suitable | Check seam slippage on open weaves |
| Suitable | Limited | Print can wear on arms and seat edges | |
| Plain | Suitable | Suitable | Easy to coordinate and replace |
| Sheer / voile | Suitable | Not suitable | Often 280–300 cm wide for joint-free curtains |
| Embroidery | Suitable | Not recommended | Stitching snags under seating loads |
| Outdoor | Suitable | Suitable | UV and water resistant, usually stain-repellent |
Wide-width fabrics (around 280 cm and above) are usually railroaded, using the fabric width as the curtain height to avoid vertical joins. That choice changes the metreage; see how to calculate curtain fabric quantity.
What extra requirements apply to hotel fabrics?
Hotel fabrics typically must meet a contract rub count, carry fire test certificates required by the brand or fire consultant, and survive industrial cleaning. These requirements usually sit in the operator's brand standards.
- Abrasion: restaurant chairs, banquettes and lobby sofas are specified at contract level; some brands set an explicit minimum.
- Fire: inherently flame-retardant fibres keep their performance after laundering; topical FR treatments may diminish with repeated washing.
- Added performance: stain-repellent, antimicrobial or anti-mould claims should be backed by test reports, not marketing copy.
- Continuity: favour fabric codes with stable production so the hotel can reupholster consistently in later refurbishment cycles.
Test reports and certificates for each fabric code come from the mill or supplier, so specifiers should request them directly for the operator's submittal package. On SEAMATER, interior fabrics are sold by the metre.
What does a tropical, humid climate change?
In tropical, humid markets across Southeast Asia including Vietnam, high humidity, strong sun and coastal salt air accelerate fading, stretching and mould. Lightfastness and dimensional stability deserve the same weight as abrasion. Line curtains on west-facing high-rise glazing, allow length adjustment for natural fibres, and use solution-dyed outdoor fabrics in semi-open resort areas. More detail is in interior materials for humid tropical climates.
What is a practical fabric selection procedure?
- Define each position's end use and intensity.
- Set thresholds: Martindale, fastness, fire requirements.
- Filter for climate and sun exposure.
- Approve physical samples under site lighting; see ordering material samples for projects.
- Check the batch number on the label when fabric is delivered and compare the shade with the approved sample before cutting.
- Lock the spec sheet into the project file.
On SEAMATER, project teams in Vietnam and on overseas export projects can shortlist metre-sold fabrics by end use and order cut swatches inside one project. Swatches are not returned; the deposit is refunded when the order is confirmed. Registered accounts see lead time and stock, and verified trade accounts also see price.
Frequently asked questions
What Martindale rating is good for a sofa?
Can Wyzenbeek double rubs be converted to Martindale?
Which fabric is suitable for curtains in a sunny apartment?
What certificates do hotel fabrics need?
Is sheer fabric suitable for upholstery?
Group your shortlisted fabrics in one project to compare spec sheets and approve physical samples before sign-off.
Order samples in a project