Ford sells the Transit Custom in a wide range of gross vehicle weights (GVW, what Ford also calls gross vehicle mass or GVM), so make sure you know exactly what you're buying and whether it's suitable for the amount of payload you will be carrying.
GVW is the total weight of the vehicle with everything on board including the people - exceed this, and you're breaking the law.
In the Transit Custom, the GVW ranges from 2.5 tonnes (2,500kg) in 250 series models to 3.4 tonnes (3,400kg) in 340 series models.
Depending on model year there are numerous other series options between the two.
Ford Transit Custom payload
As a result of this, Transit Custom payload ranges from just under 700kg to nearly 1,500kg - that's 1.5 tonnes, more than many vans in the class above.
The exact amount varies with engine type, trim level, fitted equipment and bodysize.
As for trim make sure to get a limited