What Is the Standard Office Desk Height? National Standard Provisions and Height Adaptation Guide for Different Statures

The national standard for office desk height is 680-760mm (GB/T 3326-2016), with four regular specifications: 700mm, 720mm, 740mm, and 760mm. The default height of mainstream products currently on the market is about 750mm, mainly designed for people with a height of 170-180cm. For every 5cm increase or decrease in height, the desktop height should be adjusted by about 10mm accordingly. Electric height-adjustable desks can be adjusted within the range of 650-1250mm, suitable for shared workstations or sit-stand alternating work. The desk-chair height difference should be controlled between 250-320mm; using an adjustable office chair in combination is the core solution for addressing individual differences.

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I. Standard Names and Scope of Application

The office desk height standard refers to the requirements for office desktop height, matching height difference, and related dimensions specified in national and industry standards. It mainly involves three core standards: GB/T 3326-2016, GB/T 39223.3-2020, and GB/T 38607-2020, each covering different dimensions.

2.1 Three Core National Standards

The standard basis for office desk height mainly comes from three national standards, each covering different dimensions:

Standard No.	Standard Name	Implementation Date	Core Coverage
GB/T 3326-2016	Furniture — Main dimensions of tables, chairs and stools	2017-07-01	Dimensional requirements for desktop height, seat height, and desk-chair matching height difference (basic dimensional standard)
GB/T 39223.3-2020	Ergonomic requirements for healthy home — Part 3: Office desks and chairs	2021-06-01	Ergonomic dimensional requirements for office desks and chairs (human-machine adaptation standard)
GB/T 38607-2020	Office furniture — Tables and desks — Test methods for stability, strength and durability	2021-02-01	Test methods for mechanical properties of table and desk products (mechanical performance standard)

Hierarchical relationship of the three standards: GB/T 3326-2016 defines “how high a table should be made”; GB/T 39223.3-2020 defines “how high a table should be to be comfortable”; GB/T 38607-2020 defines “how high a table should be to be sturdy”.

2.2 Scope of Application

Chapter 1 of GB/T 3326-2016 clearly states that this standard applies to the design and production of double-cabinet desks, single-cabinet desks, dressing tables, and single-layer tables, and other table furniture may also refer to it for implementation. The standard is administered by the National Technical Committee for Furniture Standardization and proposed by the China National Light Industry Council.

GB/T 39223.3-2020 applies to desk and chair products used in office scenarios and puts forward recommended dimensional requirements from an ergonomic perspective.

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II. Core Indicators and Specific Requirements

The core indicators of office desk height refer to the specific provisions in the national standard regarding key dimensions such as desktop height, seat height, desk-chair matching height difference, under-desk clearance, and height adjustment range of height-adjustable desks. They are the direct basis for purchasing and accepting office desk heights.

3.1 Desktop Height: 680-760mm

Clause 3.1 and Table 2 of GB/T 3326-2016 specify:

Desktop Type	Height Range (mm)	Description
Office desk/writing desk	680～760	Office and study scenarios
Dining table	680～760	Dining scenarios (shares the height range with office desks)
Computer desk	660～740	Computer operation scenarios (newly added in the 2016 edition)

Note: The national standard specifies a range, not a single value. The commonly seen “750mm standard desk height” on the market is actually an industry convention value, not the only specified value in the standard.

Four Specifications for Office Desk Height

The national standard has four standard specifications for office desk height: 700mm, 720mm, 740mm, and 760mm.

Specification	Height	Suitable Height Range	Use Scenario
Specification 1	700mm	155-165cm	Shorter users, teams predominantly composed of women
Specification 2	720mm	160-172cm	General lower-height model, suitable for people below average height
Specification 3	740mm	168-180cm	General standard model, most common on the market
Specification 4	760mm	175-188cm	Higher model, suitable for taller people

3.2 Seat Height and Desk-Chair Matching Height Difference

An office desk does not exist in isolation—the desk-chair height difference is the key indicator that determines comfort.

Table 2 of GB/T 3326-2016 specifies:

Parameter	Standard Value	Description
Seat height H₁	400～440mm	Distance from the highest point of the front part of the seat surface centerline to the floor
Desk-chair matching height difference (H-H₁)	250～320mm	Difference between desktop height and seat surface height
Intermediate clearance height H₃	≥580mm	Effective height of legroom under the desk
Intermediate clearance width B₄	≥520mm	Effective width of legroom under the desk

The 280-320mm desk-chair height difference is the industry-recommended optimal range. For example, with a 740mm desktop, the matching chair seat height should be 420-460mm; with a 720mm desktop, the matching seat height is 400-440mm.

3.3 Ergonomic Supplement in GB/T 39223.3-2020

Clause 4.1.1 of GB/T 39223.3-2020 puts forward more operational ergonomic requirements for office desk dimensions:

Parameter	Requirement	Standard Clause
Single-cabinet desk desktop width	900-1500mm	4.1.1.1 a)
Double-cabinet desk desktop width	1200-2400mm	4.1.1.1 b)
Single-cabinet desk desktop depth	500-750mm	4.1.1.2 a)
Double-cabinet desk desktop depth	600-1200mm	4.1.1.2 b)
Under-desk intermediate clearance height	≥580mm	4.1.1.3

The standard also points out from an ergonomic perspective: the desktop height should allow the user, when operating in a sitting posture, to place the forearms naturally, with the elbow joint at 90° or slightly greater and the shoulders fully relaxed. This is the core ergonomic criterion for judging whether the desktop height is appropriate.

3.4 Height Range of Height-Adjustable Desks

Height-adjustable desks (electric/manual) are not directly within the jurisdiction of GB/T 3326-2016 (this standard mainly targets fixed-height table products), but the design parameters of mainstream height-adjustable desk products are as follows:

Parameter	Typical Range	Description
Minimum height	600-650mm	Suitable for the sitting posture of shorter users
Maximum height	1200-1250mm	Suitable for standing office work
Standard sitting height range	680-780mm	Covers the national standard fixed desk height range
Adjustment stroke	400-600mm	Dual-motor products have a larger stroke

If an enterprise team has employees shorter than 160cm or taller than 185cm, a height-adjustable desk is the most thorough solution to the desktop height adaptation problem.

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III. Desktop Height Adaptation for People of Different Statures

Office desk height adaptation refers to the selection guidance method for recommending the corresponding desktop height according to the user’s height range, formulated based on ergonomic principles and the sitting elbow height calculation formula. The national standard range of 680-760mm covers people with a height of approximately 160-185cm; those outside this range require special handling.

4.1 Calculation Method

The determination of desktop height follows the ergonomic formula:

Desktop height ≈ sitting elbow height + 20-30mm

Sitting elbow height refers to the height from the floor to the lower edge of the elbow joint when a person sits upright with the forearm placed horizontally. This data varies with height:

User Height	Sitting Elbow Height (Estimated)	Recommended Desktop Height	Recommended Desk Height Specification
150cm	≈600mm	620-630mm	Below the national standard range; customization or height-adjustable desk required
155cm	≈620mm	640-650mm	Below the national standard range; customization or height-adjustable desk required
160cm	≈640mm	660-670mm	Close to the national standard lower limit of 680mm
165cm	≈660mm	680-690mm	National standard lower limit of 680mm is usable
170cm	≈680mm	700-710mm	Specification 700mm
175cm	≈695mm	715-725mm	Specification 720mm
180cm	≈710mm	730-740mm	Specification 740mm
185cm	≈725mm	745-755mm	Specification 760mm
190cm	≈740mm	760-770mm	Exceeds the national standard upper limit; height-adjustable desk required

Key conclusion: The national standard range of 680-760mm covers people with a height of approximately 160-185cm. For users shorter than 160cm or taller than 185cm, a fixed-height office desk is difficult to fully adapt, and compensation is needed through a height-adjustable desk or a combination of a chair and footrest.

4.2 Stature Adaptation Strategies in Enterprise Procurement

Team Height Distribution	Recommended Solution	Budget Reference
80% of employees are 160-180cm	Uniformly purchase 720-740mm fixed desks + adjustable chairs	Basic solution
Employees <155cm or >185cm	Equip employees with extreme heights with height-adjustable desks or adjustable desk legs	RMB 1500-3000 more per desk
Multiple people sharing the same workstation	Height-adjustable desks required	Suitable for shift work/shared offices
New office/uncertain team composition	Equip all with height-adjustable desks	High upfront investment, strong long-term flexibility

4.3 “Two Perpendiculars” Self-Check Method

Regardless of whether the desktop height complies with the national standard, the simplest way to judge whether a desk suits you is the “Two Perpendiculars” test:

1. Lower limbs perpendicular: When both feet are flat on the floor, the thighs and lower legs are basically perpendicular, and the knees are at approximately 90°
2. Upper arms perpendicular: When both arms hang naturally and rest on the desktop, the upper arms and forearms are basically perpendicular, and the elbow joints are at approximately 90°

If these two points are met, it indicates that the combination of desktop height and chair height is suitable for you personally. If you need to slightly shrug your shoulders when placing your arms on the desktop—the desktop is too high; if your body leans forward when your arms are fully placed on the desktop—the desktop is too low.

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IV. How Enterprises Can Compare and Judge During Procurement

Comparison and judgment of office desk height in enterprise procurement refers to the operational method for acceptance verification of indicators such as desktop height, dimensional deviation, and desk-chair height difference according to national standards during bulk procurement, as well as recommendations for height clauses that should be clarified in procurement contracts.

5.1 Desktop Height Inspection During Acceptance

Inspection Item	Standard Requirement	Test Method	Handling of Non-compliance
Desktop height	680-760mm (Table 2 of GB/T 3326)	Steel tape measure, from floor to the highest point of the desktop	Return/replace or negotiate
Dimensional deviation	Length/width/height error ≤3mm (NGOA guidelines)	Measure at multiple points with a steel tape measure and take the average	Reject if exceeding the limit
Desk-chair height difference	250-320mm	Desktop height – seat surface height	Adjust chair to match
Under-desk clearance height	≥580mm	Steel tape measure from floor to the lowest point under the desk	Non-compliance affects legroom
Desktop warpage	≤1mm (NGOA guidelines)	Straight ruler + feeler gauge	Exceeding the limit indicates poor panel quality

5.2 Recommended Height Clauses in Procurement Contracts

When enterprises purchase office desks, it is recommended to clarify the following clauses in the contract:

1. The specific specification value of desktop height (e.g., 740mm±3mm), rather than only marking the “720-760mm” range
2. The design value of the desk-chair matching height difference (e.g., 280mm), ensuring that the chair and desk cooperate as a system
3. The acceptance standard of under-desk clearance height ≥580mm
4. If there are special height requirements, agree on a customized height in the contract (not limited by the national standard range, but must be expressly stated by both the supplier and the buyer)

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V. Common Misunderstandings

Misunderstanding 1: “750mm is the national standard height”

Fact: GB/T 3326-2016 specifies a range of 680-760mm, with four specifications of 700/720/740/760mm; it does not specify the single value of 750mm. 750mm is a conventional factory value formed by the industry over a long period, close to but not equivalent to the standard specifications of 740mm or 760mm. If a supplier marks “compliant with the national standard height” but the actual height is 750mm, strictly speaking, 750mm is within the standard range (680-760mm), but it is not one of the four specifications listed in the standard.

Misunderstanding 2: “The same desk suits everyone”

Fact: The national standard addresses the “safe range for most people”, not the “optimal height for everyone”. The average height of Chinese adult men is about 172cm, and that of women is about 160cm. A 750mm desk height is suitable for people with a height of 175-180cm, but for a person 160cm tall, it is 50-60mm too high; continuously lifting the arms slightly for 8 hours can lead to chronic tension in the trapezius muscle—this is one of the root causes of many people’s “sore shoulders but unable to explain why”.

Recommendation: If it is impossible to customize the desktop height for every employee, at least ensure that the chair is adjustable and compensate through the combination of chair height + footrest.

Misunderstanding 3: “It is enough that the desk height is right; the chair is not important”

Fact: Ergonomics is a triangular system of “chair-desktop-screen”. Desktop height is the second vertex of the triangle, the chair is the first vertex, and the screen is the third vertex. Adjusting only one while ignoring the other two has limited effect.

Correct approach: First determine the desktop height, then adjust the chair seat height so that the desk-chair height difference is between 280-320mm, and finally adjust the screen height so that the upper edge of the screen is level with the line of sight.

Misunderstanding 4: “Height-adjustable desks can replace everything”

Fact: Height-adjustable desks solve the problems of “posture switching” and “multi-person adaptation”, but they do not solve all problems of “sitting ergonomics”. Even when using a height-adjustable desk, the desktop height in the sitting posture still needs to be adjusted accurately according to the individual’s height. The correct way to use it is: first adjust to the correct sitting height for work, and switch to standing mode for 15-20 minutes every 45-60 minutes.

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VI. Wenyi Furniture’s Quality Control Experience

The quality control acceptance experience for office desk height refers to four core control methods: full inspection before leaving the factory, desk-chair matching delivery, prior height research, and height-adjustable desk calibration. In quality control practice, Wenyi Furniture has the following experience in acceptance control of office desk height:

1. Full inspection before leaving the factory: Before each office desk leaves the factory, use a calibrated steel tape measure to measure the height at the four corners of the desktop, and take the average as the actual desktop height. The allowable deviation is ±2mm (stricter than the national standard’s ±3mm).
2. Desk-chair matching delivery: For bulk procurement, Wenyi Furniture matches chairs according to the principle of a 280-320mm desk-chair matching height difference, avoiding the situation where “the desk is qualified but the chair does not match”, which causes user discomfort.
3. Prior height research: In large enterprise projects (over 100 people), Wenyi Furniture conducts a height distribution survey of the team before placing orders and separately configures height-adjustable desks or adjustable desk legs for employees with extreme heights (<155cm or >185cm).
4. Height-adjustable desk calibration: Before electric height-adjustable desks leave the factory, a full-load (≥80kg) up-and-down cycle test is performed to ensure accurate stroke range and stable operation without wobbling.

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VII. FAQ

Q1: Is a 750mm office desk height specified by the national standard?

No. The office desk height range specified in GB/T 3326-2016 is 680-760mm, with four specifications: 700mm, 720mm, 740mm, and 760mm. 750mm is an industry convention factory value; it is within the standard range but is not one of the four specifications listed in the standard. If there are precise height requirements during procurement, it is recommended to specify the specific specification value in the contract.

Q2: What height of office desk should a person 160cm tall use?

A person 160cm tall has a sitting elbow height of about 640mm, and the recommended desktop height is between 660-680mm. The national standard lower limit of 680mm is barely usable, but a better solution is to use a height-adjustable desk or raise the chair and use a footrest—when the chair is adjusted to a seat height of about 400-420mm and matched with a 680mm desktop, the desk-chair height difference is about 260-280mm, within the national standard matching height difference range.

Q3: Which is more suitable for enterprise procurement: a height-adjustable desk or a fixed desk?

If the team has large height differences (155cm-185cm), workstations are shared by multiple people, or the company promotes a sit-stand alternating office culture, height-adjustable desks are more suitable. If team heights are concentrated between 165-180cm and workstations are fixed, 720-740mm fixed desks with adjustable chairs can meet the needs at a lower cost. Height-adjustable desks cost about RMB 1500-3000 more per desk than fixed desks, but if they reduce employees’ physical discomfort caused by inappropriate desks and chairs, they are a worthwhile investment in the long term.

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VIII. Sources/References

1. GB/T 3326-2016 “Furniture — Main dimensions of tables, chairs and stools” — Clause 3.1, Table 2: desktop height 680-760mm, seat height 400-440mm, desk-chair matching height difference 250-320mm (Grade A evidence, national standard)
2. GB/T 39223.3-2020 “Ergonomic requirements for healthy home — Part 3: Office desks and chairs” — Clause 4.1.1: ergonomic dimensional requirements for office desks (Grade A evidence, national standard)
3. GB/T 38607-2020 “Office furniture — Tables and desks — Test methods for stability, strength and durability” — Test methods for mechanical properties of tables and desks (Grade A evidence, national standard)
4. National Government Offices Administration, Guidelines for the Specifications and Performance of General Office Furniture for Central Administrative Institutions (August 2023) — dimensional deviation ≤3mm, warpage ≤1mm (Grade A evidence, government document)
5. Anthropometric data — average height of Chinese adult men about 172cm, women about 160cm (Grade D evidence, academic data)
6. Ergonomic sitting elbow height calculation formula — desktop height ≈ sitting elbow height + 20-30mm (Grade D evidence, academic consensus)

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Compiled by Wenyi Furniture based on national standards and industry practice