Office Chair Foot Size
The size of office chair feet varies depending on the type and design requirements, with common dimensions ranging from a diameter of 4.9 centimeters to over 700 millimeters. The specific size should be chosen based on the usage scenario and load-bearing requirements.

1. Size of Ordinary Office Chair Feet
Ordinary office chairs typically accommodate five-star feet with a diameter of approximately 600 millimeters. These feet are made of metal or engineering plastics and are designed to meet the load-bearing and stability needs of daily office scenarios. A diameter of 600 millimeters balances the support area of the feet with space occupation, meeting the mobility requirements of most office scenarios while ensuring the chair's resistance to tipping during normal use.
2. Size of Executive or Managerial Chair Feet
Executive or managerial chairs, due to their larger seat size and higher load-bearing requirements, generally use five-star feet with a diameter of approximately 700 millimeters. These feet enhance the overall structural stability by expanding the support area, making them particularly suitable for users who are heavier or need to frequently adjust their sitting posture. The 700-millimeter diameter design disperses the seat pressure, reducing the risk of foot deformation or damage during long-term use.
3. Non-Standard Sizes and Special Designs
- Small Nylon Five-Star Feet: Some lightweight office chairs or specific models of caster assemblies use non-standard sizes. For example, the Xiyan 283032 caster-matched five-star foot frame has dimensions of length 4.9 cm ร width 4.9 cm ร height 7.8 cm. These small feet are typically used in portable or low-load-bearing scenarios and are mostly made of nylon, achieving lightweight and basic stability through structural optimization.
- Widened and Thickened Nylon Five-Star Feet: For scenarios involving heavier users or long-term high-load use, widened and thickened nylon five-star feet, although not explicitlyๆ ๆณจ (labeled) with specific dimensions, enhance load-bearing performance by increasing material thickness and support area. Their diameter may approach or slightly exceed 700 millimeters, and some products further enhance durability through reinforcing ribs or double-layer structural designs.
4. Core Principles for Size Selection
The selection of chair foot size should comprehensively consider seat type, user weight, frequency of use, and floor material. For example, hard floors (such as tiles and wooden floors) have lower friction requirements for chair feet, so metal materials can be prioritized; soft floors (such as carpets) require larger-diameter or anti-slip designed feet to enhance stability. Additionally, although widened and thickened feet can improve load-bearing capacity, they may increase the overall weight of the chair, necessitating a balance based on actual needs.



