Cookie Consent by Free Privacy Policy Generator
poundland Longer Semi-Trailer lifting deck 002

How tall are double deck trailers?


In the mid 2,000s, both double deck trailers and lifting deck trailers were built up to 4.88m (16'); however, that limit has been pushed in recent years and Don-Bur now regularly build up to 4.92m (16'2") and, on rare occasion, 4.95m (16'3").


A derogation exists in the UK which means that overall height is not considered when complying with construction and use regulations.  This means that UK manufacturers can build trailers to any height.  The practical restriction is bridge height.


Unmarked bridges in the UK should be 16'6" (5.0292m) or greater.  Any bridge that does not have this clearance should have the clearance clearly indicated.  All public highways (including dual carriageways and motorways) have a standard minimum clearance of 16'6" or greater.


This means that many double deck trailers have ~4" (101.6mm) clearance between the roof and underside of public highway bridges.  This is sufficient for suspension "bump & roll".

Published: Fri 17 Nov 2023

Updated: Thu 11 Apr 2024

Don-Bur (Bodies & Trailers) Ltd

phone icon
Call us
+44(0)1782 599 666

Warning: mysqli_stmt_close(): Couldn't fetch mysqli_stmt in /home/donbur16/public_html/gb-en/index.php on line 1060