Read more ENQUIRY! CIMC AU30 45′ 3 Way Extendable Flat Deck Platform Semi-Trailer Our Extendable Flat Deck B Trailers are built to high quality and standards to serve a wide range of general applications. With a closed length of 13.73m and extending out to an overall length of 21.0m, this diverse trailer will have all your over-dimensional loads covered. Options such as solid headboards & bolster legs add to the expectations required for those non-standard freight tasks. The impeccable durability, design and ease of operation makes for an asset to any over dimensional load carrying businesses.