Measuring an A J Way Chair

Why and how we tailor make each chair for our customers.

Measuring an A J Way Chair


Measuring an A J Way Chair 

At A J Way, we custom-build each chair to ensure the dimensions are tailored for individual users and we therefore recommend that an assessment is carried out by one of our dedicated, trained distributors to guarantee long term comfort, well-being and independence for our customers. We would like to explain why the different elements of good seating are so important and offer advice on how to measure correctly.

 

Seat Height

Correct seat height should assist rising.

The higher the seat the easier it is to get out of but feet should never dangle. Seat height should always be in proportion to lower leg length - too high or too low a seat can cause the sitter to experience severe pressure problems and discomfort and in some cases may cause damage to the seat of the chair.

How to measure the correct seat height... 

  • Ensure the sitter’s feet are positioned flat on the floor in the type of footwear normally worn when relaxing.
  • There should be a right angle bend at the knees to allow the upper leg to lie flat on the seat cushion.
  • Measure the sitter’s lower leg length from the floor to the top of the seat cushion.

 

Seat Depth

The correct seat depth should eliminate the need for extra pillows or cushions.

If the seat is too deep the sitter will slide forward, losing posture and increasing localised pressure; if it is not deep enough, pressure will be concentrated on a smaller area of the body and not as well distributed.

On riser recliner chairs legrest length is a very important part of seat depth measurement, heels should just roll over the edge of the legrest pad.

How to measure the correct seat depth... 

  • Ensure the sitter is upright with their back against the lumbar support.
  • The seat cushion should be deep enough to support the entire length of the upper leg to the back of the knee without the cushion putting pressure on the back of the calf.
  • Measure the sitter’s upper leg length from the front of the seat cushion to the backrest of the chair.

 

Seat Width

The correct seat width should provide the sitter with a supported posture.

If the seat is too wide it can be difficult to maintain an optimum posture; if too narrow the sitter may not be able to sit right back in the chair which would again limit postural support.

How to measure the correct seat width...

  • Ensure the sitter is upright with their back against the lumbar support. 
  • A ¾”/20mm gap either side of the buttocks should ensure the arms sit comfortably on armrests and that the chair is neither too wide or too narrow.
  • Measure the sitter across the hips and take the internal width of the seat between armrests.

 

Back Height

The correct backrest height should support the back of the head when sitting or lying in the chair.

This is particularly important with riser recliner chairs when in a reclined position as the head will hang over the top of the backrest if the back is too low, causing the client to slide forward and adopt poor posture.

How to measure the correct back height...

  • Ensure the sitter is upright with their back against the lumbar support.
  • Measure from the top of the sitter’s ears to the seat cushion.

 

Armrest Height

The correct armrest height should allow the sitter’s arms to rest gently and naturally on the armrests with the shoulder girdle in a neutral position.

Chair arms that are too high will cause neck and shoulder pain; too low will cause drooping and dragging on the shoulders and make getting in and out of the chair more difficult.

How to measure the correct arm height... 

  • Ensure the sitter is upright with their back against the lumbar support. 
  • Measure the sitter from the top of the seat cushion to the top of the armrest where a neutral arm position is assumed.

 

Back Shape and Angle

The shape of the backrest should ideally contour the sitter’s back profile providing good lumbar and neck support.

Personal preference will determine whether a very upright chair or a more reclined position is required.