Telescoping concrete form assembly

A concrete form assembly comprising:

• a hollow first member assembly including an elongated body with a first end, a medial portion, a second end, an inner cross-sectional shape and a generally planar vertical first side;
• a second member assembly including an elongated body with a first end, a medial portion, a second end, said second member medial portion outer cross-sectional shape corresponds to said first body inner cross-sectional shape;
• wherein said second body is slidably disposed within said first body and structured to move between a retracted first position, wherein said second body is substantially disposed within said first body, and a second position, wherein said second body extends from said first body;
• wherein said second body first end is a reduced portion;
• and
• wherein, when said second body is in said second position, said second body is further in an offset position wherein a portion of the second body outer surface substantially aligns with a portion of the first body outer surface.