What size automatic door operator do you need?
Operators are rated for a maximum leaf weight and width, and for how often they can cycle. Sizing simply means matching those ratings to your door and its traffic. Get it right and the door is reliable; get it wrong and it fails early.1. Door weight
Weight is the biggest factor. A wide glass leaf is heavy, and a heavier leaf needs a stronger operator. Aluminium and glass doors are weighed by area – your supplier works this out from the size and glass specification.2. Door width and single vs double
A wider clear opening, or a double bi-parting door, changes the operator and track length you need. Double doors split the opening between two leaves, which affects sizing.3. Traffic and duty cycle
A quiet office side door and a busy mall entrance are different jobs. High traffic needs an operator with a high duty cycle, built to open and close thousands of times a day without overheating.4. Exposure and wind
Doors on an exposed facade face wind load, which the operator has to work against. Windy or exposed sites may need a stronger unit or adjusted settings.Sliding vs swing sizing
Sliding and swing operators are sized differently – see our automatic door operator guide and what is an automatic door operator for how each works. A typical sliding unit is the MC-125.The simplest way to get the size right
Give your supplier the door type, width, height and glass spec, and they will match the operator for you. Quality operators follow safety standards such as EN 16005.FAQ
What size automatic door operator for a shopfront? A high-duty sliding operator sized to the leaf weight and width – your supplier confirms the exact model. Can an operator be too big? Oversizing wastes money; correct sizing is more reliable and cost-effective.Get the right size operator
Coetz sizes, supplies and installs automatic door operators across Gauteng, with supply nationwide. Browse automatic door systems or contact our team for a free quote.
Getting it right with Coetz
When it comes to what size automatic door operator, the details decide the outcome – the operator rating, the sensor package and a clean installation, all built to recognised automatic door technology safety principles. Coetz specifies each entrance to its real traffic and building rather than a one-size-fits-all kit, so the door opens smoothly and closes safely from the first day.
Coetz has years of experience with automatic entrances across South Africa, from single shopfronts to multi-door developments. We install to standard, commission every safety function, and back the entrance with service and genuine spare parts, so it keeps working long after the invoice is paid.
Planning early is the simplest way to keep a project on budget and on time. Getting the power supply, the opening and the safety package right up front avoids rework and return visits later.
Ready to move ahead? Tell us your opening size and traffic level, and we will recommend the best option and a clear, itemised price.
More about What Size Automatic Door Operator
Understanding what size automatic door operator helps you specify the right entrance the first time. The best results come from matching the operator, sensors and glass to the building and its traffic, then commissioning the door so it opens smoothly and closes safely. Cutting corners on any of these usually costs more later in call-outs and downtime, so it pays to get the specification right at the start.
Every site is a little different, so the what size automatic door operator that suits a busy mall entrance is not the same as a quiet office door. Traffic volume, opening width, safety requirements and the look of the frontage all shape the final choice, which is why a short site assessment is always worth the time before you commit.
Coetz supplies, installs and services automatic doors across South Africa, and we are happy to advise on what size automatic door operator for your project – from a single entrance to a multi-door development, backed by service and genuine spare parts.
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