To increase the thickness of an upper center sash member, an upper side sash member, a lower center sash member and a lower side sash member without increasing the total height of a synthetic resin pallet, and to heighten the strength and rigidity of the synthetic resin pallet thereby.

In this synthetic resin pallet, an upper center sash member 1a and an upper side sash member 1b constituting an upper deck board and a lower center sash member 2a and a lower side sash member 2b constituting a lower deck board are directly connected to each other without any girders therebetween.