For each courier there are some limitations to the sizing of your parcel. Below you will find more information:
DHL size limit:
Maximum dimensions 120 x 80 x 80cm high. Maximum weight 18kg through ParcelPal.
DPD size limit:
For UK drop off services maximum dimensions are 60cmx 60cm x 60cm in length or no 2 sides exceeding 120cm in length and maximum weight at 20kg.
International services 1.75m in length and 300cm in girth with maximum weight at 30kg.
More information can be found here.
UPS size limit:
For drop off service the maximum dimensions are 0.8m length with a maximum length+girth of 3m. Maximum weight at 20kg.
Parcelforce size limit:
Parcels can be up to 1.5 metres in length and the length and girth combined should not exceed more than 3m
If you are using a large parcel service for example express/48 express large then: Parcels can be up to 2.5m in length and the length and girth combined should not exceed more than 5m.