55mm Widespan
55mm Widespan Roller Shutter
The 55mm Widespan is a roll-formed aluminium roller shutter built for wider openings, installed by LT Doors across Wollongong and the Illawarra on windows, doorways and garage doors up to 4500mm wide. It also doubles as entry-level security for light commercial premises.
Built for Wollongong's coastal conditions
Wider window and door openings are common on the bigger blocks going up across Wollongong's newer estates, and the 55mm Widespan's heavier steel axle and reinforced slat profile handle those spans without the sag or strain a standard 42mm shutter would face at the same width.
what LT doors thinks
This is the shutter we reach for once an opening is too wide for the standard 42mm range but doesn't yet need the bigger 77mm profile — think garage doors and larger sliding door openings. It's foam-filled like the smaller profiles, so you're not giving up quiet operation or insulation to cover the extra width.
Key features
- Construction: high-quality aluminium alloy, foam-filled profile for strength, security and silent operation
- Profile: smooth and curved face
- Finish: high-quality painted finish, double-coated plus lacquer for abrasion resistance
- Axle: heavy-duty steel with internal sealed bearings
- Widespan: suitable up to 4500mm wide
- Operation: roll-tight design, manual or motorised
- Made in Australia
What makes the 55mm Widespan different
A standard 42mm profile shutter starts to strain at wider openings without extra support. The 55mm Widespan's larger slat covering and heavier steel axle are purpose-built to span up to 4500mm while staying foam-filled for strength and quiet operation — it's not just a wider version of the same part, the whole profile is reinforced for the extra span.
Colours and finishes
Profile options include Cream, Magnolia Cream, Clear Beige, White, Shale Grey, Brown, Black, Monument, Silver and Woodland Grey. Pelmets, side frames, guides and bottom bars come in the same range, with powder-coated options available at extra cost.
Which roller shutter should you choose?
For standard-width windows and doorways, the 42mm Single or Double Line is more cost-effective. For garage doors or openings wider than 4500mm, compare the 77mm Widespan. For commercial or industrial-grade strength at wide widths, the Heavy Duty 36mm Extruded or 50mm IR Extruded are worth comparing.
Installation, warranty and upgrades
Measured, supplied and installed by LT Doors' licensed local team, backed by a written workmanship guarantee. Can be manually operated (steel cable winder, spring loaded with key lock) or motorised, including with the PowerSmart or SolarSmart automation systems.
Next Steps
FAQS
What is a 55mm Widespan roller shutter?
A roll-formed aluminium roller shutter built with a larger slat profile and heavier axle, suited to wider windows, doorways and garage doors up to 4500mm. LT Doors installs it across Wollongong.
Can the 55mm Widespan be used on a garage door?
Yes — it's suitable for residential and light commercial garage doors as well as wide windows and doorways.
Can the 55mm Widespan be motorised?
Yes — it can be manually operated with a steel cable winder or motorised, including with the PowerSmart or SolarSmart automation systems.

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REAL reviews from local customers
I recently had LT Doors in Wollongong install a new garage door, and I couldn't be more pleased with the entire experience. From the start, their communication was excellent—clear, responsive, and professional every step of the way. The price was very competitive for the quality of the door, and they were upfront about all costs, with no hidden fees.
Very happy with the garage door installation. Luke from LLT Doors in Wollongong was prompt with the quote and gave sound advice about the most appropriate door for our property. The price was reasonable. The door was installed on the organised date.
I called Luke from LT Doors in Wollongong yesterday and he had John out the very next day – such quick and professional service! John was on time, friendly, and got everything sorted with no fuss. Really impressed – highly recommend!
I called Luke from LT Doors in Wollongong yesterday and he had John out the very next day – such quick and professional service! John was on time, friendly, and got everything sorted with no fuss. Really impressed – highly recommend!



