Measure before you buy
Wrong dimensions are one of the most common reasons equipment gets returned or, worse, gets kept and quietly stops being used. These four measurements take a few minutes and catch most of it.
How to read these results. Each answer compares your measurement against the range that category typically falls in, then names the exact field to confirm on the product listing. It does not tell you that a specific product fits — manufacturers revise dimensions, and only the current listing is authoritative for the model you are actually looking at.
Doorway width (for a walker or rollator)
Measure the narrowest doorway they will pass through daily, from inside edge to inside edge with the door open. Include the door itself if it does not fold flat.
Standard doorways are about 32 inches. Walkers are typically 23-26 inches wide; rollators run 24-28 inches.
Grab bar mounting height
Measure from the finished floor (or the shower floor) up to where the centre of the bar would sit.
The standard mounting height for grab bars is 33-36 inches from the floor.
Seat height (shower chair or transfer bench)
Have them sit in a firm chair with shoes on, feet flat. Measure from the floor to the back of the knee.
The aim is that feet rest flat on the floor and standing up is easy — so the seat should sit at roughly this measurement, not higher.
Weight capacity needed
Use their current weight. Round up rather than down.
Bathroom equipment is commonly rated at 250, 300, 350 or 500 pounds. Leave margin — the rating is a static limit, and transfers load it dynamically.
