Abstract: A temporary building hardenable material construction apparatus, constituted of: a freestandable support frame; at least one extension member; a first and second enclosure member positioned in parallel such that a space is defined therebetween, wherein the freestandable support frame is juxtaposed with the outer face of the first enclosure member or the outer face of the second enclosure member, wherein each extension member extends through the first and second enclosure member such that the first end thereof extends past the first enclosure member or the second end thereof extends past the second enclosure member, and wherein the at least one extension member is secured to the freestandable support frame.