Lockout tool assembly for automatic closing fire-rated roll up doors

A lockout tool assembly for locking open an automatic closing roll-up door, the lockout tool assembly comprising:

• a lockout tool member comprising:
• an elongate support member, the elongate support member defining a first end and a second end opposite the first end, wherein the first end comprises a coupling member that couples the lockout tool member to a roll-up door axel of a roll-up door assembly and the second end of the elongate support member comprises a crossbar restraint shaft member;
• and
• the crossbar restraint member positioned against an edge of a mounting plate of the roll-up door assembly;
• a first lockout plate that attaches to the mounting plate of the roll-up door assembly and defines a first receiving recess and a first mounting aperture;
• and
• a second lockout plate that attaches to the mounting plate of a roll-up door assembly and defines a second receiving recess and a second mounting aperture,
• wherein the first and second lockout plates are pivotally attached to each other at the first and second mounting apertures, and
• wherein a portion of the crossbar restraint shaft member is received in a crossbar restraint receiving aperture defined by complementary positioning of the first receiving recess and the second receiving recess in a closed lockout alignment position of the first lockout plate and the second lockout plate.