Which Slat Size? 55mm or 77mm

Chartwell green roller garage door with 55mm slat size.

Would 55mm or 77mm slats be best for your garage door?

All our doors feature double skinned aluminium slats, filled with a special foam for thermal and acoustic insulation.

For all of our doors there is a choice of two slat sizes, 55mm or 77mm.

So what determines the right choice of slat size? Would 55mm or 77mm be best for your door?

We would be happy to run through the choices for you when we carry out the survey at your home, but here are the factors to consider.

Door Size

The size of your door opening may well determine the size of slats that is the most suitable. 55mm slats are able to fit openings up to 7’7″ (2310mm) wide and 7’6″ (2285mm) high, any wider or higher and 77mm slats are required because of their enhanced rigidity. 77mm slats are able to fit large openings up to 16′ (4875mm) wide.

Garage Space

All of our roller doors utilise garage space more efficiently than traditional garage doors, freeing up extra space immediately inside the garage and along the walls. The motor housing of a 55mm slat door is more compact, allowing for greater head height in some garages.

Insulation & Security

Another factor to consider is the thickness of the slats. 77mm slats are around twice as thick as 55mm slats. This leads to improved rigidity. Along with the increased strength comes better insulating qualities, so less heat loss and better sound proofing.

Colour Choices

All our doors are available in a wide range of standard colours, and a custom colour can even be prepared. There are also some wood effect laminate finishes and some paint colours that are exclusive to 77mm slats.

Cost

An important factor is cost. Put simply, 55mm slats cost less than 77mm slats, so when a particular opening size offers a choice between the slat sizes it may be that budget is a determining factor. Either way, you can be sure that any door we supply is built to last, fit for purpose and meets UKCA standards.

We would be happy to discuss the options available to you and provide a solution that meets your requirements and suits your budget, please contact us to arrange a free home survey.

Want Some Advice? Arrange a Survey

We will visit your home, measure up for your roller garage door and explain the available options. Then we will provide a fully inclusive, fixed quotation. We don’t do hard selling, guaranteed!
Give us a call on 01245 905 509 or click the button below to send us a message.


Customer Reviews

Chelmsford Roller Doors

Customer Reviews

Stu Willett December 2024

Google
Did my research and got several quotes from other sellers. I was impressed with the other google reviews and Sam's less aggressive sales approach and decided to go for two doors. Installation was a breeze and a few issues/final placement decisions on the day were solved without fuss.
I would definitely recommend.

Paul Macca February 2025

Google
Sam was exceptional not only over the phone but turned up on time gave me a great quote and installation looks amazing - better then I thought it would - fantastic job and highly recommended

Alan Fisher January 2025

Google
☆☆☆☆☆5 star service all the way ☆☆☆☆☆.
Very helpful and pleasant to deal with.
Offered a great range of options at reasonable prices with no "hard sell."
New door fitted efficiently and old door taken away at no extra charge leaving a very satisfied customer with a smile on his face.
Many thanks to your team.

Steve Murray January 2025

Google
I would highly recommend Sam and Nicole at CRD. They were helpful, responsive and friendly. The garage door Sam and Connor fitted looks great. Thanks guys.

Brian Cordell September 2024

Google
Excellent service. 5* is an understatement!
Very professional, completed within a couple of hours and very clean and tidy.
Sam and Connor were so obliging and explained every step of the installation.
Highly recommended. Thank you

Bunmi August 2024

Google
Really happy with the service from Sam and Nicole from the beginning to the end of the process. Communication was clear and prompt throughout. Sam came in person to provide the quote and was the only company that I reached out to that actually offered. The quote came in quickly and even though I wasn’t ready to proceed with the work, they were very polite about it. When we were ready a few months later, we were able to proceed very quickly and had our garage door fitted within 4 weeks. We are very happy with the service we received and the quality of the door.

Chris & Carole Sykes April 2024

Google
Great service from Sam from start to finish.
Sam came in person (which is rare nowadays) to take the measurements. We received the quote by email on the same day. We are very happy with the service we received and the quality of the door.

Paul Wiltshire Feb 2024

Google
I’m really pleased with my new garage doors which were fitted today by CRD. I would happily recommend this company for their expertise and friendly service to my friends and neighbours. Thanks again

Blossom Love Jan 2024

Google
Absolutely fantastic service, very friendly and professional. I was provided with several options to build a package and price to suit my budget and it was the best quote I had received. However I would have chose this company regardless due to the detailed information and non pushy sales approach.
Doors fitted within a day and left clean and tidy ready to go.

Thanks again

Brian Lawrence June 2023

Google
A totally painless process, Sam and Nicole arrived and replaced the doors quietly and efficiently.
A job very well done and the result is beautiful. Highly recommended.
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