LETTERS not exceeding Length - 24cm, Width - 16.5cm - thickness up to and including 0.5cm Weight limit - 100g LARGE LETTERS not exceeding Length - 35.3cm, Width - 25cm - thickness up and and including 2.5cm Weight limit - 750g SMALL PARCELS not exceeding Length - 45cm, Width - 35cm, Depth - 16cm. Weight limit - 2kg MEDIUM PARCELS not exceeding Length - 61cm, Width - 46cm, Depth - 46cm. Weight limit - 20kg LARGE PARCELS not exceeding 1.5m length & 3m length & girth combined. Weight limit - 30kg Only available on Parcelforce Worldwide services For rolled and cylinder shaped parcels, the length of the item plus twice the diameter must not exceed 104cm, with the greatest dimension being no more than 90cm.