This is how measurements are taken for the wheelchair 

A correctly fitted wheelchair is important to enable the user to maintain participation in the activities of everyday life as much as possible. A wheelchair is a means of transport, primarily intended to compensate for the loss of the walking function. The user of a comfort wheelchair sits a daily average of 8-10 hours in a wheelchair. For this reason it is important that the wheelchair offers good driving characteristics and maximum sitting comfort as well as the possibility to switch between activity and rest. The following section explains how to find the right wheelchair.


Taking the right measurements is important in order to ensure stability of the pelvis and hips. The wheelchair must be as narrow as possible to ensure a good sitting and driving position. The seat width is measured in a straight line across the widest part of the hips in a seated position. Add 2-3 cm. Important: Please keep in mind that the specified seat width for Netti I, II and III wheelchairs includes the distance between the seat cushion and skirt guard. This corresponds to 2-3 cm, which should be added.

Seat depth measurement for bariatric users >>>

When correctly measured, optimum contact area is achieved and at the same time it prevents the user from sliding out of the chair. The thigh length is measured from the rearmost point of the buttocks to the hollow of the knee. Then about 3 cm or 2 finger widths are subtracted so that the calf is not in contact with the seat cushion in front. If the chair is to be foot-propelled, a few more centimetres are subtracted. For different leg lengths the measurements are taken on the shorter leg. If the user suffers from a contracted knee joint, it must be ensured that the calf does not touch the seat cushion or the underlying frame structure.

When sitting for long periods, strain is put on the back muscles and one feels the need for relief. The correct height of the armrest provides a good sitting position and a change in the sitting position. The height is measured from the bottom of the elbow to the seat cushion. Make sure the shoulders are relaxed.

When correctly measured, the pelvis is stabilised, pressure evenly distributed and the distance between the foot support and cushion correctly adjusted. The leg length is measured vertically from the hollow of the knee down to below the heel. Important: The shoes worn by the user every day must be included in the measurement. The seat height will depend on whether the user can move the chair with their legs or use the foot supports. If the user intends to propel the chair with their feet, the height of the wheelchair seat could be 2-3 cm lower than the measured leg length. If the user intends to use the foot supports, the seat height of the wheelchair could be 4-5 cm higher than the measured leg length.

The backrest height is measured from the seat to under shoulder-blade in the seated position. All Netti wheelchairs can be supplied with several types of back cushions in different backrest heights of 40-60 cm. All Netti wheelchairs have a velcro backrest for individual height adjustment of the back cushion. If the user manoeuvre the wheelchair with the arms, the back cushion must not impede the movement of the arms and shoulders. The correct backrest height also provides for greater comfort and supports the back. The Netti back cushions allow enough space for arm movements.

The trunk width is measured horizontally at the level of the lower tip of the scapula. This measure is to evaluate the required distances between the integrated side supports of the back cushion. The goal is an optimal trunk support. 

Avoid too narrow trunk width, as this can cause pressure ulcers. If the distance is more than 3 cm per side you can use a spinal wedge to secure the stability.

NORWAY: Alu Rehab AS - Bedriftsveien 23 - 4353 Klepp stasjon - Tel (+47) 51 78 62 20 - Fax (+47) 51 78 62 21 -
DENMARK: Alu Rehab ApS - Kløftehøj 8 - 8680 Ry - Tel (+45) 8788 7300 - Fax (+45) 8788 7319 -
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