If you’re doing trade work, the “right” size usually comes down to what you carry most days, where you drive, and whether you need to tow. A small van (e.g. Caddy/Berlingo-sized) is easier in tight streets and cheaper to run, but you can quickly outgrow it. A medium van (e.g. Transit Custom/Vivaro-sized) costs more but suits most trades long-term because it takes bulkier kit, longer materials and often tows more confidently.
Start with your typical load, not the biggest job
Write down your “normal week” kit: toolboxes, dust extraction, steps, pipe/duct lengths, fixings, and any stock you like to keep on board. If you regularly carry sheet materials, long ladders, or multiple bulky cases, a medium van’s extra load space and payload can save daily hassle and reduce overloading risk.
Where you work matters
If you’re mainly in cities, tight estates, or doing lots of short stops, a small van is less stressful to park and usually more economical. Medium vans are still manageable, but you’ll notice the extra length/width in older streets and multi-storeys (check height with roof bars/ladder racks).
Running costs and tax (new vans)
New van VED is a flat rate (currently £345/year) regardless of emissions. Fuel, tyres, servicing and insurance are typically lower on small vans. If you’re considering electric, the Plug-in Van Grant can be up to £2,500 (under 2,500kg GVW) or up to £5,000 (up to 4,250kg GVW), but grants are reviewed and can change—check the latest on Gov.uk/OZEV.
Two common “gotchas”
Payload disappears fast once you add racking, ply-lining, a bulkhead, and a second person. Also, if you tow, check the van’s gross train weight and your licence entitlement (most drivers with a standard UK car licence can tow within the usual limits, but always confirm for your exact weights).
If you’re undecided, a good compromise is a medium van in a short wheelbase (or a small van with a long wheelbase), ordered with the right door layout and factory options (twin side doors, stronger alternator, towbar prep) to match your work.
