PURPOSE: To form a toilet booth which is easy to assemble and excellent in contamination resistance by bonding a thermosetting resin-made decorative board with the peripheral surface of a panel which uses a hollow core material

CONSTITUTION: A slope surface 13a is formed on both vertical side surfaces of a rectangular parallelepiped with a specified thickness of a board-like base material 3 pasted on the front and rear sides by bonding an edge material 4 with a four corner parts of a hollow core material 1 while a thermosetting resin-made decorative board 2 is bonded with the peripheral surface of the base material which forms a curved surface at two corners on the front surface so that they may be coated. A post form melamine resin group is advisable to use for this decorative board since it is excellent in compression strength and impact resistance or the like. To fix each panel from a front end panel 12, a corner end panel 14 and a side panel 11, their upper parts are screwed with a flat bar, for example. while their lower parts are fitted into a recessed part formed on the lower part of each panel with a stainless steel base plate 41 or the like and screwed and fixed with the surface of the base. It is also possible to control an internal space by connecting a side panel with a joint rod.