Centric have been offering Split Density foam on its CEN seating for over 10 years and believe in its ergonomic comfort, support and cushioning.

The Split Density seat incorporates two levels of firmness – both constructed from durable, CFC-free moulded polyurethane foam which provide differing deflection characteristics, encouraging an anatomically-correct posture, to reduce backache and muscle fatigue normally associated with the ‘slump posture’ often seen in foam-based seats.

The Split Density foam can even be supplied with a cut-away shape for the coccyx, allowing the tail bone to comfortably ‘float’.

The gradual transitional slope opens the pelvis and also creates a negative tilt, which improves blood flow to the legs.

Clinically proven enhancements in blood and oxygen flow as a result of postural change can help aid concentration levels and improve overall office efficiency.

Widely used in the automotive industry, this cutting-edge technology has long been recognised by ergonomists, occupational health and medical professionals as being able to
deliver the best support and cushioning, offering super-comfort over a variety of different
body weights.


Conventional single density foam does not offer support where it is specifically needed, whereas Split Density Foam offers support in those areas where it is needed.

Split Density seats deliver extraordinary comfort and offers the user a customised seating experience.

Some seating with inferior pressure distribution patterns could ultimately increase disc pressure in the lumbar and coccyx areas, causing unhealthy long-term effects.

When a person is in a seated position, his or her weight typically rests on a section of bone called the Ischial Tuberosity. When standing, the Gluteus Maximus muscle lies over it however, when one sits down, the muscle shifts to a position behind it and the tuberosity bears the majority of the weight.

Split Density seats pinpoint load absorption and allows the lower density foam to absorb the weight thus preventing the pelvis to slide forward and the slump pose so it helps restore normal positioning and curvature of the spine and helps reduces sciatic nerve pain.

*ILD – Indentation Load Deflection – the measure of how much pressure it takes to compress foam to 25% of its thickness.



For conventional foam, the perceived comfort level deteriorates during the course of the day.





For Split Density Foam, the perceived comfort level deteriorates during the course of the day.