Accuweigh's single deck weighbridges are available in either concrete deck or metal deck builds with concrete deck weighbridges being the most cost effective and more commonly used weighbridge type. Single deck weighbridges are usually 18-20 metres long and fitted with six weighbridge load cells as this spec provides the most cost effective combination of material costs for the load cells, steel beams, rio and concrete used in the weighbridge construction.
Weighbridges using a single deck are best suited for weighing short trucks up to standard semi-trailers - any vehicle that can be fitted entirely on the weighbridge deck. It is possible to use split weighing to weigh trucks that are longer than the weighbridge by weighing the truck/trailer in two halves, then combining both weight readings.
The accuracy of split weighing is largely dependant on the weighbridge approaches which need to be completely level and in the same plane as the weighbridge deck for the entire length of the truck/trailer that overhangs the weighbridge during weighing. The additional costs of the extended approaches can add considerably to the cost of installing a single deck weighbridge if longer truck/trailers also need to be weighed.
As weighbridge life is usually in the 20-30 years bracket, the better long term solution may be to install a dual deck weighbridge to suit the longer vehicles that may need to be weighed now but to also allow for even longer vehicles that may become available in the future.
Single deck weighbridge designs are available as above ground weighbridges, inground weighbridges or semi-pit weighbridges.