Some chairs in our range are equipped with multipurpose castors, which can be used for hard and soft floors. If a chair is fitted with multi-purpose castors, this will be listed in the product description.
Pin size and castor diameter
Our castors come in two sizes, either 10/50mm (millimetres) or 11/65 mm. This indicates the pin size and castor diameter, respectively. Office chair castors generally have a pin size of either 10mm or 11mm thickness. Please make sure to purchase the correct-sized pin, it will only fit into a suitable chair. The easiest way to find appropriate castors for your office chair or executive chair is to go to its product page, matching accessories and specifications such as castor size are displayed.
Castors have a diameter of either 50mm or 65mm. As with pin size, please be aware to choose the correct-sized castor for your chair. Normally, castors bigger than 50mm are not a problem, but smaller castors are incompatible.