The Difference of Folding Door Series: 70 / 80 / 90 / 95

When you see a folding door labeled as “70 series”, “80 series”, “90 series” or “95 series”, these numbers refer to the system width or profile thickness of the aluminum frame. In other words, they indicate how strong, thick and high-performing the door structure is.

The larger the number, the thicker and stronger the aluminum profile — and the better its performance in terms of strength, sealing, insulation, and wind resistance.

1. 70 Series – Light and Economical

The 70 series folding door is designed for indoor partitions, balcony entrances, or small openings.
It features a slim frame, light weight, and cost-effective design.
Ideal for projects where space and budget are key considerations.

Key features:

Profile width: about 70mm

Lightweight and flexible operation

Suitable for interior spaces and moderate wind loads

2. 80 Series – Balanced Design

The 80 series is a balanced option that combines elegant appearance with improved performance.
It offers better sealing and insulation than the 70 series, making it suitable for residential balcony doors and small exterior openings.

Key features:

Profile width: about 80mm

Better sound and thermal insulation

Smooth folding and stable structure

3. 90 Series – High-Performance System

The 90 series folding door is built for large openings and outdoor applications such as villa patios or terraces.
With a thicker frame, it provides higher wind resistance, better sealing, and supports larger glass panels.

Key features:

Profile width: about 90mm

Heavy-duty structure and elegant appearance

Suitable for big openings and outdoor use

4. 95 Series – Premium & Heavy-Duty

The 95 series represents the top-end system, designed for luxury villas, commercial buildings, and wide-span entrances.
It has the strongest frame, superior sealing, and outstanding durability.

Key features:

Profile width: about 95mm

Excellent strength and weather resistance

Supports large panels and triple-glazed glass

Summary Table

Conclusion

Choosing the right series depends on your project requirements — space size, location, insulation needs, and design preference.
Whether you want a light and elegant interior folding door or a robust system for large outdoor openings, our 70 / 80 / 90 / 95 series provide reliable and stylish solutions for every application.