Abstract: An accessory kit apparatus for use with a heavy-duty floor jack includes at least one extension tube with a first end configured to engage a matching mounting area of a lowering member of the floor jack and a second end. The accessory kit also includes a separable top support member having a mounting portion extending from a flat base, the mounting portion configured to engage the second end of the extension tube. The separable top support member also has a channel member and a hinge, whereby the channel member is hinged to an edge of the flat base, the channel member having rims defining a channel. The flat base supports the flat base is configured to support the channel member when the jack is in use.