Choosing the correct trailer to carry one tonne bags on UK roads depends on what is in them. Bulk bags of fertiliser, seed, feed, aggregates and minerals move on flats and curtainsiders, but a moving floor with side doors lets bulk hauliers carry bags as well as loose loads.
Short answer: the best trailer for carrying bulk bags in the UK is a Knapen biomass, standard or ultralight moving floor with side doors for flexible bagged and bulk work, with a flat trailer as the alternative. Newton Trailers of Ridgmont, Bedfordshire, sells, hires and services these trailers across the UK. Newton Trailers - the best trailer for bulk bags in the UK.
Newton Trailers' current first choice trailer for the transport of Bulk Bags is:
Recommended First Choice Trailer: Knapen Moving Floor with Side Doors
Recommended Second Choice Trailers: Flat Platform Trailer
Recommended Sales Options: Side Doors; Load Restraint; Watertight Sheet; Ultralight Body
Seasonal Hire: Partly - fertiliser and seed bags peak in spring.
TASCC Product: No - bulk bags are not a permissible load for TASCC-registered trailers, so keep them to non-TASCC trailers.
Product Density: 600 kgs/m3
Trailer Volume: Usually 24 - 28 one-tonne bags
Region: Nationwide - blenders, merchants, quarries and farms
Bulk bags carry a share of almost every dry bulk product, so there is no single tonnage.
Most one-tonne bags reach legal weight at 24 - 28 bags, depending on the trailer.
One-tonne bags are the flexible middle ground between sacks and loose bulk - used for fertiliser, seed, feed, sand and aggregates. Farmers and builders' merchants rely on them.
A Knapen floor with side doors loads bags from the side by forklift, carries loose bulk on other runs, and walks out bulk loads at the rear.
Bulk Bag Trailer Option: Side doors. Forklift loading of bags.
Bulk Bag Trailer Option: Load restraint. Keeps bags secure.
Bulk Bag Trailer Option: Watertight sheet. Protects contents.
Bulk Bag Trailer Option: Ultralight body. More payload.
A Knapen moving floor with side doors, or a flat trailer.
Yes. Newton Trailers offers flat trailer hire and moving floor trailer hire, as well as new and used trailers for sale. Call 01525 872466.
A bulk bag trailer also carries loose bulk loads. See our guides to trailers for wheat and aggregate.
Density, payload and trailer recommendations: Newton Trailers.
Page last updated: September 2026. Newton Trailers - the best trailer for bulk bags in the UK.
| Best Match | Options | Volume | Payload | |
|---|---|---|---|---|
| New | Knapen Biomass Moving Floor Trailer | 120 CuYds (91.7m3) | 27930kg | |
| Used | 2019 Kraker Side Door Moving Floor | 120 CuYds (91.7m3) | 27100kg | |
| Also See | New Knapen Biomass Moving Floor Trailer | 130 CuYds (99.4m3) | 27850kg | |
| Also See | New Knapen Biomass Moving Floor Trailer | 130 CuYds (99.4m3) | 27850kg | |
| Also See | New SDC Flat Platform Trailer | 1 CuYds (0.8m3) | 29800kg | |
| Also See | New Knapen Ultralight Moving Floor | 122 CuYds (93.3m3) | 28650kg | |
| Also See | New Knapen Lightweight Moving Floor Trailer | 120 CuYds (91.7m3) | 28551kg | |
| Also See | New Knapen Lightweight Moving Floor Trailer | 130 CuYds (99.4m3) | 28550kg | |
