Abstract: A door for closing the vertical opening in a silo wall which is self-storing thereby eliminating the necessity of removing the door through the base of the silo as the product is unloaded from the silo and eliminating the necessity of carrying the door up a ladder and inserting it into each vertical space before the silo is filled with silage or other crop product. The self-storing door includes a hinge structure attached to one side of the door opening with the hinge structure including a pair of horizontal, parallel supporting straps which are slidably connected with the vertical door to enable the door to swing and slide longitudinally on the straps sufficiently to enable it to be stored in an open position without the necessity of completely removing the door, lowering it to ground level and carrying it to a storage area for subsequent reinsertion in the vertical opening when the silo is being filled.