What do profile series numbers like 80 and 90 mean, and which do you need? Here's a plain explanation.
Profile series numbers broadly indicate the frame's width or depth in millimetres. A higher number generally means a wider, deeper frame — which carries more weight, spans further, and has room for more chambers.
A bigger number isn't automatically better — it's about matching the series to the opening. Over-speccing a small window just adds bulk and cost; under-speccing a large one risks flex. We choose it per opening.
The number broadly indicates the frame's width or depth in millimetres — a higher number means a wider, deeper frame that carries more weight, spans further, and has room for more chambers.
Not automatically — it's about matching the series to the opening. Over-speccing a small window adds bulk and cost; under-speccing a large one risks flex.
We choose it per opening based on size and type — you don't need to work it out.
Related guides covering this topic from other angles — different products, applications, or contexts.
Tell us your openings and we'll measure on site, advise, and give you a real quote — factory-direct from our Pannimadai works in Coimbatore.