Abstract: An object and bulk material holding container having a floor attached to corner units for supporting upright walls. The corner units have enclosed pockets for receiving lower ends of the posts joined to the walls. Cooperating notch and tabs on the posts and corner units function in conjunction with the lower ends of the posts to hold the walls in generally upright positions. Foldable gates extend adjacent posts. The gates can be folded down onto the top of the floor along with the walls to place the container in a collapsed storable condition. In one form the floor has laterally movable extensions that are locked in selected positions to change the width of the floor.