What Wheelchair "Seating" Really Means and When It Might Be Time to Go Custom

When people talk about “seating” in a wheelchair, they’re not just talking about the seat itself. Seating refers to the entire system that helps a person sit comfortably, safely, and function well while using their wheelchair.

A simple way to explain seating

Seating is everything that helps a person sit well in their wheelchair — not just the seat, but the whole setup that supports their body.

It’s the difference between “just sitting” and being able to participate, communicate, and feel comfortable throughout the day.

What seating includes

In everyday language, seating includes:

• The cushion you sit on. Helps with comfort, posture, and pressure relief.

• The backrest. Supports the spine and helps keep the body upright.

• Side supports (laterals). Prevent leaning or sliding and help with balance.

• Headrests or neck supports. Keep the head in a comfortable, safe position.

• Belts or harnesses. Not for restraint — but for safe, stable positioning.

• Footrests and leg supports. Keep legs in a healthy, comfortable alignment and help support the rest of the body.

• Other padding and supports. Help maintain proper alignment and comfort throughout the day.

Why seating matters

Good seating helps a person:

• Stay comfortable for longer periods

• Breathe and eat more easily

• Reduce pain and pressure injuries

• Sit upright for learning, working, or socializing

• Move their wheelchair more effectively

• Protect their spine, hips, and joints over time

Two main types of seating

• Modular seating = adjustable and flexible

• Custom seating = made specifically to fit one person

Modular vs custom seating

Modular Seating	Custom Seating
Adjustable, pre-made parts	Built specifically for one person
Can change as needs change	Provides consistent, stable support
Works for mild positioning needs	Best for moderate to high positioning needs
Faster to set up	Takes time to design and fit
Often more affordable	Higher cost due to customization
Easier to adjust or replace parts	Usually remade as a full system

When modular seating works well

Many people start with modular seating.

This type of seating uses adjustable, pre-made parts that can be changed as needs change. It works well for some individuals, usually when posture needs are mild.

For clients and parents, this usually means:

• Easier adjustments over time

• Faster setup

• Flexibility as needs change

However, I do not recommend a lot of modular seating in my practice. Sometimes (often), I go straight to custom seating.

When someone might need custom seating

Sometimes, modular seating isn’t enough.

Custom seating is designed specifically to match a person’s body shape and provide better support.

A person may need custom seating when:

• Their body shape is very curved or asymmetrical. For example, significant scoliosis or uneven hip positioning.

• They have difficulty maintaining posture even with supports. Leaning, sliding, or slouching despite adjustments.

• They are at high risk of pressure injuries. Especially when movement is very limited.

• Their muscle tone changes significantly. Such as strong spasticity or very low tone.

• They experience ongoing pain in standard seating. Even after trying different cushions or setups.

• They need very precise positioning for function. To improve breathing, communication, eating, or hand use.

• Their needs have progressed over time. Modular adjustments are no longer enough.

Do you know many people with developmental or neurological conditions who don't meet at least one of these criteria? Perhaps we need to reconsider why we recommend modular seating so much for these populations and whether it really is the best approach.

Most of the people I work with meet at least a few of the criteria listed above. In modular seating, they lean, slouch and slide. Then, they spend a lot of time in that position while at school, work or home. Over time, their body gets stuck in that position and not even the best custom seating system will fully reverse these changes once they get to that point.

I only recommend modular seating if it provides optimal posture for that person (i.e., will do as good a job as custom seating). If not, I recommend custom.

Custom seating helps people to be comfortable so they can continue to get out and about. Custom seating helps support people so they experience less fatigue and are able to use their upper bodies better and have better function.

Too many times, we wait until the person is already stuck before we make the jump to custom seating. Custom seating needs to implemented BEFORE they lose flexibility of their spine, hips, neck, etc. It helps to prevent people from getting stuck in positions that are not functional or comfortable.

The key takeaway

Seating is everything that helps someone sit well in their wheelchair.

For clients and parents, the goal is simple: comfort, safety, and the ability to fully participate in daily life.

It’s the difference between just sitting and being able to learn, connect, and engage with the world comfortably.

For the health care professionals out there, consider carefully whether you should be recommending modular or custom!

If you want to learn more about seating in paediatric and neurological populations, please reach out or watch for more on this topic in future posts.