Packages shipped "Standard or Express" must not exceed 108 x 165 inches / 275 x 419 cm OR weigh more than 150lbs / 68kgs. Packages shipped "Economy" must not exceed the following dimensions indicated here.
If you anticipate that the goods you are ordering could come in a package that is larger/heavier than this, please speak to the Merchant to see if they can help to reduce the packaging or weight. Bear in mind that fragile goods such as electronic equipment, glassware etc may come with a lot of packaging so the parcel may be larger than you expect.
Depending on the destination, "standard service" package limitations may have a maximum package size smaller and lighter than stated above.