Comparisons of furniture legs and feet are almost always made on the wrong two attributes. A table is drawn up with price down one side and appearance down the other, the options are ranked, and a family is chosen — and the piece then fails in service for a reason that neither column mentions.
The reason is that the attributes which decide whether a support works are not the attributes which decide whether it sells. Duty cycle, the environment it stands in, whether it can be cleaned, how it is replaced, and which safety standard governs it vary enormously between a bedroom cabinet and a hospital bedside unit, and they vary in ways that price and appearance do not reflect at all. A support specification that ignores them will be internally consistent and will produce a piece of furniture that is corrected within a year.
This guide therefore compares legs and feet on the axis that actually separates them: the application class. It sets out the three questions that decide the family, the seven application classes and what each demands, a head-to-head comparison of the four support families across eight attributes, the duty cycle and environment tables that separate residential from commercial, the standards that govern each class, serviceability, and where each family must not be used. It draws on 15 years of manufacturing legs, feet, levellers, and plinth hardware for furniture producers across 40+ countries.
Furniture legs, feet, levellers, and plinth hardware range
What Every Leg-and-Foot Comparison Gets Wrong
| Compared on | What it tells you | What it does not |
| Price per unit | The purchase cost of one part | The replacement cost, the assembly cost, or the failure cost |
| Appearance | Whether it suits the design | Whether it survives the environment |
| Material name | What it is made of | Whether that material suits the duty cycle |
| Load rating | The capacity of the part in isolation | The capacity of the joint and the floor |
| Height | The nominal dimension | The adjustment range and the floor tolerance |
| Finish | The colour and texture | The corrosion class and the salt spray hours |
Two of those rows are actively misleading.
A load rating compared across families is not a comparison. A machine mount rated at 1,000kg and a decorative leg rated at 200kg are not a ranking; they are two different products for two different duties. Comparison between families only becomes meaningful once the families have been filtered to those admissible in the application.
A material name is not a specification. "Stainless" covers 304 and 316, which differ substantially in chloride resistance. "Powder coated steel" covers a 40-micron architectural coating and a 60-micron decorative one. Comparing materials by name is comparing labels, not properties.
The comparison that does work is within an application class: once the class has eliminated the inadmissible families, the survivors can be compared on price, appearance, and everything else, because they are genuinely alternatives to one another.
The Three Questions That Decide the Family
Before any comparison table, three questions eliminate most of the field.
| Question | Why it is decisive | What it eliminates |
| 1. Is the support visible, and does it carry the design? | A visible leg is a design element and a structural member; a concealed foot is neither | Eliminates visible-leg families from concealed applications and vice versa |
| 2. Does the height ever need to change after installation? | Adjustability determines the interface and the cost, and it is decided by the floor and the site | Where height is fixed, eliminates all adjustable families and their cost |
| 3. What is the duty cycle and the environment? | Together they set the material, the finish, and often the regulatory class | Eliminates plastic in heavy commercial use, ferrous parts in wet or coastal use, and open mechanisms in hygiene-critical areas |
The third question is the one that is skipped, and it is the one that decides failures. A support family that is perfectly adequate for a domestic cabinet is not adequate for a hotel bathroom or a hospital ward, and the difference is not the load. It is the number of cycles, the cleaning chemicals, and the regulatory regime.
A note on the order. The three questions are asked in this sequence because the first is about design, the second about the site, and the third about the life. Asking them in a different order produces a specification that satisfies one of them at the expense of another — most commonly a beautiful visible leg that cannot survive its environment, which is the single most expensive class of error in this category.
The Seven Application Classes and What Each Demands
| Class | What governs the choice | Admissible families | Not admissible |
| Residential furniture | Cost, appearance, moderate load, dry interior | All families; plastic and zinc alloy acceptable | Nothing categorically, but open mechanisms are a cleaning nuisance |
| Office and contract commercial | Duty cycle, load, and standards compliance | Steel and stainless legs, adjustable feet, plinths, rated castors | Decorative low-depth brackets; unrated castors |
| Retail display and shopfitting | Speed of installation, reconfiguration, appearance | Adjustable feet, plinths, levellers, modular legs | Fixed legs where the floor is unknown |
| Hospitality and food service | Cleaning chemicals, wet environments, hygiene, castors | Stainless 304/316, sealed feet, hygiene-rated castors | Plastic feet in wet zones; open threaded stems where food debris collects |
| Healthcare and laboratory | Hygiene, chemical resistance, regulation, quiet operation | Stainless, sealed and wipeable, antimicrobial-compatible | Any crevice the cleaning regime cannot reach |
| Outdoor and marine | UV, chlorides, thermal cycling, rain | A4 stainless, aluminium, treated timber, UV-stable polymer | Any ferrous part; standard coatings; untreated timber |
| Industrial equipment and machinery | Vibration, heavy static load, levelling under load | Machine mounts, heavy-duty levellers, anti-vibration feet | Domestic legs and feet of any family |
Three observations from the table.
Residential is the only class with no categorical exclusions, and that is why residential habits travel badly. A buyer accustomed to specifying on price and appearance in the residential market carries those habits into hospitality or healthcare, where entire families are inadmissible for reasons that never arise at home.
The hygiene classes are governed by geometry, not by material. A stainless foot with an open threaded stem and a hollow base is not a hygienic foot, because it creates a crevice that the cleaning regime cannot reach. The material determines whether it corrodes; the geometry determines whether it can be cleaned. Healthcare and food-service specifications fail on the second far more often than the first.
The outdoor class is governed by the coating system and the grade, in that order. A4 stainless is the answer where chlorides are present. Where costs must be contained, aluminium and UV-stable polymer are viable and must be specified by their UV and colour-retention properties, not by the word "outdoor".
A2 and A4 stainless hardware for wet and coastal environments
The Families Compared: Legs, Feet, Castors, and Plinth
Once an application class has been established, the families admissible within it can be compared properly.
| Attribute | Fixed leg (visible) | Adjustable foot / leveller | Castor | Plinth base |
| Visibility | Fully visible; carries the design | Concealed behind a plinth or under a base | Visible unless hooded | The plinth panel is the visible element |
| Height adjustment | None; set by the leg's length | Continuous within the adjustment band | None at the castor; sometimes at the plate | Body height, adjusted by the internal feet |
| Load per point | 200-1,000 kg depending on material and section | 100-1,000 kg, falling with extension | 40-400 kg per castor by diameter and wheel | High; the load is distributed along the plinth |
| Mobility after installation | None | None; the cabinet is anchored by its own weight | Full; the piece is moved | None |
| Assembly time | Low; plate or insert | Moderate; set, level, lock | Low, but the plate must be reinforced | High; the plinth must be cut and fitted |
| Floor protection | Requires a pad; point load on a hard floor | Requires a pad; the base area matters | The wheel material determines marking | Best of all; the load is spread over the plinth run |
| Serviceability | Replace the leg; the plate pattern must match | Replace the foot; the stem and thread must match | Replace the castor; the plate pattern must match | Access behind the plinth is required |
| Failure mode | Fixing tear-out, panel failure at the plate | Creep under sustained load, thread strip at the stem | Wheel wear, brake failure, plate tear-out | Water ingress at the floor line, plinth detachment |
Read the last row against the application classes. A castor's failure modes are irrelevant in a class that never moves the furniture and dominant in one that does. A plinth's excellent floor protection is worth little where access behind the plinth is impossible. The comparison is only meaningful inside a class, which is why the table above is a reference and not a recommendation.
Two pairs in the table are frequently confused.
The fixed leg and the adjustable foot are the same job with opposite priorities. Where the floor is known and permanent, a fixed leg is cheaper, stiffer, and more attractive. Where the floor is unknown, uneven, or will change, the adjustable foot is the only family that can bring the piece to level after the fact. Specifying a fixed leg for an unknown floor is the most common error in this category, and it is discovered on site rather than in the specification.
The castor plate and the leg plate are not interchangeable, even where the fixing hole pattern is identical. A castor transfers load into the plate as a combination of vertical load and horizontal thrust, because the wheel is offset from the swivel axis; a leg transfers vertical load only. A plate designed for a leg, used for a castor, will be loaded in a way it was not designed for.
Duty Cycle: The Attribute That Separates Residential from Commercial
| Class | Load per support, typical | Cycles or movements in service life | Expected service life | What usually fails first |
| Residential furniture | 20-60 kg | Few; the piece is rarely moved | 10-15 years | The finish, or the fixing after a move |
| Office and contract | 40-120 kg | Frequent; daily use and periodic refit | 5-10 years of intensive use | The adjustment mechanism, or the castor |
| Retail display | 20-80 kg | Frequent reconfiguration; the piece is moved often | 3-7 years | The floor interface and the plate |
| Hospitality | 40-100 kg | Continuous use; frequent cleaning | 3-5 years | Corrosion at the floor line; hygiene-driven replacement |
| Healthcare | 40-100 kg | Continuous; frequent cleaning and movement | 3-5 years | Cleanability, then corrosion |
| Outdoor and marine | 20-80 kg | Cyclic thermal and moisture loading | 3-10 years by material | Corrosion, or UV degradation of polymer parts |
| Industrial | 100-2,000 kg | Continuous vibration and occasional repositioning | 10+ years | The levelling thread, or the mount's elastomer |
The cycle column is the one that changes the answer, and it changes it in a way that load ratings do not show. A residential foot and a hospitality foot can carry the same load and have service lives differing by a factor of three, because the hospitality unit is cleaned daily and moved weekly while the residential unit is cleaned monthly and moved once. The mechanism that fails is the adjustment thread, the finish, or the plate fixing — none of which appears in a load rating.
One practical rule follows: where the duty cycle is greater than a few hundred movements, specify the family as if it were a commercial application regardless of who the customer is. Contract furniture in a home office is the classic case: it is bought as domestic and used at a commercial rate.
Environment and Cleanability
| Environment | Governing attack | Material and finish requirement | The cleanability requirement |
| Dry interior | Dust, occasional cleaning | Clear trivalent zinc or any decorative finish | None beyond normal |
| Kitchen | Intermittent wetting, cleaning chemicals | Yellow zinc minimum; A2 stainless preferred | Wipeable; no crevice that traps debris |
| Bathroom and wet room | Persistent humidity, splashes, cleaners | A2 stainless; A4 where ventilation is poor | Sealed; no water trap at the floor line |
| Hospitality and food service | Daily chemical cleaning, wet floors, HACCP regime | A4 stainless in wet zones | Open crevices are a compliance failure |
| Healthcare and laboratory | Aggressive disinfectants, repeated wipe-down | A4 stainless, chemically compatible | Fully wipeable; no hollow sections exposed |
| Coastal | Airborne chlorides | A4 stainless; avoid aluminium in exposed positions | Not applicable |
| Outdoor, exposed | Rain, UV, freeze-thaw | A4 stainless, aluminium, UV-stable polymer | Drainage, so water does not collect at the foot |
Two rules that the table makes explicit.
Corrosion class and cleanability are independent requirements, and both must be specified. A sealed stainless foot in a food-service environment satisfies both. An open stainless foot satisfies the corrosion requirement and fails the cleanability one. A sealed plastic foot satisfies cleanability and fails in a wet zone for creep and UV reasons. Every hygiene-class specification needs both columns answered.
The floor line is the critical zone in every wet environment. Water, cleaning chemical, and mechanical abrasion concentrate at the point where the support meets the floor. This is why the finish specification for the foot should be a step above the finish specification for the furniture it carries, and why a foot is the wrong place to save on coating.
Safety and Standards by Class
| Class | Standards that typically apply | What they govern |
| Domestic storage and kitchen | EN 14749 | Strength, stability, and durability of domestic storage units |
| Non-domestic storage | EN 16121 | The contract equivalent, with higher load and cycle requirements |
| Domestic seating | EN 12520 | Strength and durability of domestic seating |
| Non-domestic seating | EN 16139 | The contract equivalent |
| Domestic tables | EN 12521 | Strength and durability |
| Non-domestic tables | EN 15372 | The contract equivalent |
| Office furniture | BIFMA X5.1, X5.5, X5.9 | Chairs, desks, and storage, widely required in North America |
| Hardware corrosion | EN 1670 | Corrosion resistance classification of hardware |
| Coating performance | ISO 9227 | Neutral salt spray testing, the basis for a stated hour figure |
| Hygiene-critical applications | HACCP-aligned specifications, and customer-specific cleaning regimes | Cleanability rather than strength |
The practical point is that the standard follows the class, not the product. The same leg on the same cabinet is governed by EN 14749 in a home and EN 16121 in an office, and the contract standard is more demanding. A supplier quoting a domestic test result for a contract application has answered a question the buyer did not ask.
State the standard, the class, and the figure. "Tested to a high standard" and "heavy duty" are not specifications. "Strength and durability tested to EN 16121" and "coating classified to EN 1670, tested to 240 hours neutral salt spray to ISO 9227" are, and they are what should appear on the purchase order.
Floor pads, glides, and protective feet
Serviceability: What Replacement Actually Costs
| Family | How it is replaced | What must match | Practical downtime |
| Fixed leg | Unbolt and refit | The plate pattern and the leg's height | Minutes per leg, if the pattern is current |
| Adjustable foot | Unscrew, or replace the foot body | The stem thread form and diameter | Minutes, provided the stem is a standard thread |
| Castor | Unbolt and refit | The plate pattern and the castor's height | Minutes, if the plate pattern is standard |
| Plinth base | Access behind the plinth | The plinth height and the fixing method | Hours; the plinth must be removed and re-cut |
The row that decides most specifications in service-heavy applications is the "what must match" column. A replacement is straightforward when the interface is a standard: a standard thread form, a standard plate pattern, an industry-standard bore. It is a re-engineering exercise when the interface is proprietary, because the replacement must match a part that may no longer be in production.
This is the argument for standard interfaces in every class where the piece will be maintained. A proprietary plate pattern saves a little on the part and removes the ability to replace it in five years. Two standardisation choices cover most of the risk: a standard thread form on the leveller stem, and a standard plate fixing pattern, so that replacement parts are a purchase rather than a project.
Where Each Family Must Not Be Used
| Family | Must not be used where | Why |
| Plastic feet and legs | Wet zones, outdoor, heavy duty, hygiene-critical | Creep under sustained load; UV degradation; cannot be sealed reliably |
| Decorative low-depth legs | Over long spans or high loads | Deflection, not strength, governs |
| Fixed legs | Where the floor is unknown, uneven, or will change | No means of correcting the height after installation |
| Adjustable feet at full extension | Where lateral stability matters | Stiffness falls sharply at maximum extension |
| Castors | Where the piece must not move, or on soft floors | Unintended movement; point loading through the wheel |
| Castors on a plate designed for a leg | Anywhere | The plate is loaded in thrust, not only vertically |
| Plinth bases | Where access behind the plinth is required, or in hygiene-critical areas | Service access is impossible; the plinth creates a cleaning shadow |
| Machine mounts in a domestic interior | Anywhere | Over-specified, heavy, and functionally unnecessary |
| Any ferrous foot in a coastal or marine environment | Anywhere | Chlorides will find it, including through a coating |
Two rows deserve emphasis because they are the ones that recur.
The fixed leg on an unknown floor. This is the single most common specification error in the category, and its cost is not the leg — it is the site visit, the packers, the re-cut plinth, and the customer's confidence.
The castor on a leg plate. Where a castor is retrofitted to a piece with leg plates, the plate is now loaded with horizontal thrust whenever the piece is moved. The failure is a slow loosening of the plate followed by tear-out, and it is frequently attributed to the castor rather than to the plate.
The Comparison, Summarised
| Application class | First choice | Second choice | Avoid |
| Residential interior, known floor | Fixed leg with a floor pad | Plinth base | Castors on soft floors |
| Residential, unknown or uneven floor | Adjustable foot | Adjustable foot behind a plinth | Fixed leg without a packing plan |
| Office and contract | Steel or stainless leg; rated castor where mobile | Adjustable foot; plinth for static runs | Unrated castors; decorative low-depth legs |
| Retail display | Adjustable feet; modular legs | Plinth; levellers | Fixed legs where the floor is unknown |
| Hospitality and food service | Sealed stainless foot; hygiene-rated castor | Plinth with a sealed floor line | Plastic in wet zones; open stems |
| Healthcare and laboratory | Sealed, wipeable A4 stainless foot | Enclosed castor system | Any exposed crevice or hollow section |
| Outdoor and marine | A4 stainless leg or foot | Aluminium; UV-stable polymer | Any ferrous part; untreated timber |
| Industrial equipment | Machine mount; heavy-duty leveller | Anti-vibration foot | Domestic legs and feet of any family |
Specification Checklist
| # | Specify | Why it decides the outcome |
| 1 | The application class, stated explicitly | It gates the admissible families and the standard |
| 2 | Whether the support is visible and design-bearing | Determines whether appearance is a constraint at all |
| 3 | Whether the height must be adjustable after installation | Decides between fixed and adjustable families |
| 4 | The duty cycle: movements and cleaning frequency | Separates a domestic specification from a contract one |
| 5 | The environment for each support location | Sets the corrosion class, and locations differ within one piece |
| 6 | The cleanability requirement where hygiene applies | Geometry, not only material, decides compliance |
| 7 | Load per support, worst case, not average | Off-centre loads concentrate on one support |
| 8 | The floor: known, uneven, soft, or changeable | Determines the family and the pad |
| 9 | The governing standard and class (EN 14749, EN 16121, BIFMA) | Makes the specification verifiable |
| 10 | The coating class and salt spray hours | A finish name is not a corrosion specification |
| 11 | The interface: thread form and plate pattern | Determines whether replacement is a purchase or a project |
| 12 | The replacement route and its availability | The part must exist in five years |
We manufacture furniture legs, cabinet legs, plinth feet, adjustable feet, levellers, floor pads, and machine mounts in polyamide, zinc alloy, powder-coated steel, aluminium, brass, and stainless steel 304/316, with standard thread forms and standard plate patterns across the range. Load ratings are documented per foot at the mounting interface and extension they were measured with, corrosion performance is tested to EN 1670 with salt spray testing to ISO 9227, and strength and durability testing follows the standard applicable to the class. Custom lengths, plate patterns, and coatings are available through our OEM engineering service.
Threaded inserts and sockets for leg and foot fixings
Conclusion
A comparison of furniture legs and feet that ranks them on price and appearance produces a specification that is internally consistent and wrong, because the attributes that decide whether a support works vary more between application classes than they do between the products being compared. Duty cycle, environment, cleanability, serviceability, and the governing standard are set by where the piece will stand and how it will be used — and they eliminate whole families before the comparison begins.
Compare within a class, and the choice becomes straightforward. Compare across classes, and the table is meaningless: a load rating is not a ranking, and a material name is not a specification.
Key takeaways:
Furniture Legs, Feet, and Levellers
Additional Resources
- Furniture Legs, Feet, and Levellers
- Floor Pads and Protective Caps
- Threaded Inserts and Sockets
- Support Specification by Application
- ISO 9001 Manufacturing
About Shaxi Hardware
With over 15 years of experience manufacturing furniture hardware, Shaxi Hardware supplies furniture producers, shopfitters, and contract furnishers across 40+ countries with furniture legs, cabinet legs, plinth feet, adjustable feet, levellers, floor pads, machine mounts, and threaded inserts in polyamide, zinc alloy, powder-coated steel, aluminium, brass, and stainless steel 304/316. Our ISO 9001 certified production facility offers standard thread forms and standard plate patterns across the range, documents load ratings per foot at the mounting interface and extension they were measured with, tests corrosion performance to EN 1670 with salt spray testing to ISO 9227, and carries out strength and durability testing to the standard applicable to the class. Custom lengths, plate patterns, and coatings are available through our OEM engineering service.
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