A portable forced door entry training apparatus configurable to simulate a wide variety of locked or barricaded door entry conditions, and which can be utilized in conjunction with a wide variety of convention forced-entry tools for repeated forced entry training purposes. The training apparatus consists of a base plate, upon which is secured a rigid upright door frame structure having a pair of vertical side jambs, coupled at the top by a header. A conventional door is secured within the rigid frame structure by two or more hinge brackets affixed to a side jamb member of the rigid frame structure. One or more holding brackets are affixed to the rigid frame structure on the opposite side jamb member. Each holding bracket is affixed to the rigid frame structure with a replaceable frangible connection, and is positioned to resist opening of the door about the pivot axis of the hinge brackets.