Supported sitting
Take measurements while the person is comfortably and safely supported. Use their normal seating position whenever practical.
Phase-1 Fitting Support
Seating & Positioning Measurements
Use this guide to prepare preliminary measurements for postural chairs, customized seating and related positioning support. It can be used for children or adults.
You do not need to complete every field. Enter “Not sure” or “Unable to measure safely” where appropriate.
Measurements support SafetyAid’s equipment review but do not confirm final sizing, suitability or safety.
Measure only in a stable, supported sitting position
Use the person’s usual supportive seating or another safely supported position. Do not remove necessary supports or force the pelvis, trunk, head, hips, knees or feet into a straighter position merely to take a measurement.
Stop if the person becomes uncomfortable, unstable or experiences pain. Record “Unable to measure safely” when a measurement cannot be taken reliably.
Preparation
Before you start
- Use centimetres.
- Keep the pelvis and trunk supported as normally required.
- Support the head and feet when needed.
- Keep the measuring tape straight without pressing into the body.
- Ask another adult to assist when one person cannot position the tape safely.
- Do not force the knees, hips or trunk into a different posture.
- Record “Not sure” rather than guessing.
- Note any existing seating, cushions, belts or supports that affect normal posture.
Safe positioning
Use the person’s usual posture
Postural differences
Record visible asymmetry, leaning, pelvic position or support needs in the notes. Do not attempt to correct posture manually just to produce a different measurement.
Unable to sit safely
Do not attempt unsupported sitting. Record “Unable to measure safely” and seek assistance from another caregiver or professional when appropriate.
A family member or caregiver may prepare preliminary measurements. Complex posture, seating, tone, asymmetry or pressure-management needs may benefit from help from a physiotherapist, occupational therapist, orthotist or rehabilitation professional.
Professional involvement is helpful when needed but is not required to begin a SafetyAid assessment.
This guide supports equipment preparation only. It does not provide medical diagnosis, treatment or clinical assessment.
Sitting / Postural Seating
Sitting / Postural Seating Measurements
Used for CP seating, corner chair, activity chair, floor sitter, wheelchair seating, and postural support systems.
Use the lettered body measurements below with the diagram. SafetyAid & Co. may also ask for posture photos or videos before final recommendation.
Measurement unit: centimeters (cm). Please write all measurements in centimeters.
Please write all measurements in centimeters (cm).
Already have a SafetyAid & Co. Reference ID?
Enter the SafetyAid & Co. Reference ID shared with you so these measurements can be matched to your case/order.
If SafetyAid & Co. gave you a reference ID, enter it here so these measurements can be matched with the correct case or order.
Most new users will not have a SafetyAid or RehabMart reference number. Leave this blank unless SafetyAid has already provided one.
| Ref. | Measurement / item | Measurement / answer | Notes for SafetyAid & Co. |
|---|---|---|---|
| Section 1 - Basic information | |||
| Patient name | |||
| Age | |||
| Approx weight | |||
| Section 2 - Sitting body measurements | |||
| A | Lower leg lengthMeasured from the back of the knee to the floor. | ||
| B1 | Upper leg lengthMeasured from the back of the knee to the back of the seat as the child leans forward slightly. | ||
| B2 | Upper leg lengthMeasured from the front of the knee to the back of the seat as the child leans forward slightly. | ||
| C1 | Elbow height to seatMeasured from the bent elbow to the seat. | ||
| C2 | Elbow height to floorMeasured from the bent elbow to the floor. | ||
| D | Shoulder height to seatMeasured from the shoulder to the seat. | ||
| E | Head height to seatMeasured from the top of the head to the seat. | ||
| F | Trunk widthMeasured at the widest location. | ||
| G | Hip widthMeasured at the widest location. | ||
| Section 3 - SafetyAid & Co. notes / support observations | |||
| Diagnosis / condition | |||
| Pelvic control | |||
| Trunk control | |||
| Head control | |||
| Sitting tolerance | |||
| Current chair / seating used | |||
| Notes / photos needed | |||
Review the entered values before printing or saving as PDF. Nothing is automatically sent to SafetyAid.
Before sharing through WhatsApp
WhatsApp sharing opens a prefilled message containing the details entered on this page. Review the message before sending. Information shared through WhatsApp is subject to WhatsApp’s privacy and retention practices.
Use Print / Save as PDF if you prefer not to place the entered measurements into a WhatsApp link.
After completing the measurements, save as PDF or send them to SafetyAid & Co. through the approved contact channel.