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Extender Flat. 
Multi-functional, to new lengths.

The Montracon Flat Extender trailer is the perfect solution for carrying indivisible loads such as beams & bridge spans. Extending up to 21m, the Montracon Flat Extending trailer is a multi-functional platform trailer able to work as a standard flat and or extendable giving the operator full flexibility.

Our standard trailer warranty periods and terms are amongst the best in the industry. In the unfortunate event of a trailer breakdown, you need to have the peace of mind that support is at hand to get you moving again.

  • Extendable up to 21m
  • Strong construction
  • Rear-end options
  • Rear steer option for increased manoeuvrability
  • EN12642XL rating
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Posts, Sockets & Twistlocks

Fall Edge Protection System

Extendable up to 21m

Storage Options

Extender
Extender
Extender

Configure your own Flat:

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Quality

Strength

Longevity

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"We have only ever bought new trailers from Montracon, we have always found that the product exceeds our expectations."
“Genuine people behind the product - they are a credibility to the business. Will only ever use Montracon trailers.”
“As I have 13 Montracon trailers out of a total of 19 trailers, the numbers state the continuous satisfaction with the product.”
“Thank you - superb service. Our sales contact was in contact from start to finish and checking on our requirements at all times of day and night. The completed trailer is 100% as we required, first class. Credit to Montracon.”
“Fantastic trailers, fantastic marketing, fantastic service, fantastic support. I came to Montracon due to their ongoing, incredible promotion of their products. It is safe to say, the quality backs it all up. I have 3 Montracon trailers now!”
“The two trailers we bought are of excellent quality and we are happy with our purchases. The attention to detail from your sales manager was exemplary. We will be returning to Montracon in the future.”
“Very good, efficient, and prompt in my limited experience. It was my first purchase from Montracon and everything went very well. Thank you.”
“Lloyd Walsh, our Area Sales Manager, is very easy to deal with and understands our needs. Trailers were completed within the given time frames. Thank you to all the team at Montracon.”
“They are what they say on the tin - Quality, Strength & Longevity. Montracon trailers last the longest out of all my fleet - worth the extra you pay. Great manufacturing!”
“The Montracon team can not do enough to help. Real people - friendly, open, and passionate about what they do. Worth every penny - their trailers are all fully maufactured in the UK.”
“This was our first order from Montracon and this was mainly due to the fact that Bob kept in touch with us over the last few years even though we were buying from SDC, the service from Bob was excellent and nothing was too much trouble. The service after the order was placed was again very good and excellent communication throughout.”
“I am over the moon with our new trailer. It’s working great and the rear steer feature is worth every penny. I’d like to say a big thank you to everyone at Montracon. The sales and engineering team worked with me to make sure the specification met my requirements.”
“I’m extremely happy with the quality of the Curtainsiders that we receive from Montracon. Not only are the trailers of the highest quality, but the level of service really makes a difference as well. It’s fair to say that the quality that Montracon provide really does fit in with their core brand values.”

Explore the full Flat range...

Standard

Urban

PSK

Brick n Block

Extender

Step Frame

Coil Well

Scaffolding

Sliding Body

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The all-new Montracon Website

Introducing the all-new montracon.com Your upgraded Montracon experience is here – faster, smarter, and built around you. We’re excited to unveil the all-new montracon.com –

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21st July 2025 No Comments

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