• Kneeling chairs to improve posture and prevent back pain. Also called Backless Chairs, Kneel Chairs, Back Chairs or Ergonomic Chairs.

    • Kneeling Chair Sizing

    Sit/Kneel Chairs are made in 5 sizes according to your leg length. Choosing the right sized Kneeling Chair will ensure better comfort.

    If your height is just on the cusp between two different sizes, you should choose the size smaller if you are shorter in the legs and long in the back or, the larger if you have a relatively short back and long legs.

    To find out what size Sit Kneel Chair (either with or without castors) we recommend for the length of your legs, look at the table below and see which is right for your height.
    My Height (Approximate) Chair Size required if WITHOUT CASTORS Below.... height of seat on Lowest setting Below.... height of seat on Highest setting
    Less than 5 ft 2 inches Small
    		 20 inches 51cm 23 ½ inches 60cms
    Between 5 ft 2 inches and 5 ft 8 inches

    		 Medium 20 ¾ inches 53cms 24 inches 61cms
    Between 5 ft 7 inches and 6 ft 0 inches

    		 Medium/Large 21 inches 54cms 241/2 inches 62cms
    Between 5 ft 10 inches and 6 ft 3 inches

    		 Large 21 ½ inches 55 cms 25 inches 63 cms
    Over 6 ft 3 inches
    		Extra Large 22 ½ inches 57 cms 26 inches 66 cms


    My Height (Approximate) Chair Size required if WITH CASTORS Below.... height of seat on Lowest setting Below.... height of seat on Highest setting
    Less than 5 ft 2 inches
    		 Small with castors 21 inches 53 cms 241/2 inches 62cms
    Between 5 ft 2 inches and 5 ft 8 inches

    		 Medium with castors 21 1/2 inches 55cms 25 ¼ inches 64cms
    Between 5 ft 7 inches and 6 ft 0 inches

    		 Medium/Large with castors 22 inches 55cms 25 ¾ inches 65cms
    Between 5 ft 11 inches and 6 ft 4 inches
    		 Large with castors 23 ¾ 60 cms 26 ½ inches 68 cms
    Over 6 ft 3 inches
    		Extra Large with castors 24 ½ inches 62 cms 27 ¾ inches 71cms


    Remember, the different sizes are primarily designed to fit different leg lengths. It is not just to do with your height. There is some overlap between chair sizes - two people of similar height may have longer or shorter legs.

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