Abstract: There is provided a form support, a form assembly and a length-adjustable assembly therefor, as well as a method of installing a form assembly. The length-adjustable assembly includes upper and lower telescoping members and an end member removably coupled to and extending radially relative to the upper telescoping member. The length-adjustable assembly includes a male threaded member about which the telescoping members substantially extend. The male threaded member is rotatable relative to the end member with axial movement of the male threaded member relative to the end member being inhibited. The male threaded member threadably couples to a lower telescoping member. The form support includes a mount coupled to and extending outwards from a lower end of and/or is adjacent the upper telescoping member according to one embodiment. The mount extends outwards from an upper end of the upper telescoping member in another embodiment. The mount may be L-shaped.

Abstract: A building foundation form apparatus and method uses transverse form supports (15) supported directly on the ground and carrying longitudinal form supports (21, 22) adjustably located on opposite sides of, and substantially parallel to, a foundation axis (17). A flexible sheet form element (25) has edge portions (57, 58) connected to the longitudinal form supports (21, 22) and a contact portion (60) located between the edge portions and supported on the ground and deformed into a general U-shape with overhanging bulges (39) to receive the flowable and settable foundation mixture. The longitudinal form supports (21, 22) are adjustable vertically to accommodate ground undulations to ensure correct footing width. The contact portion (60) has mesh opening to pass the foundation mixture therethrough to enhance adhesion to the ground.

Abstract: A pre-fabricated building foundation form assembly is installed beneath a building floor which is temporarily supported in its final position. The form assembly comprises a plurality of form stiffeners which are spaced apart along a proposed foundation wall and extend downwardly from the floor, each stiffener having laterally spaced apart inner and outer edges. A flexible sheet form element has laterally spaced apart upper portions connected to the edges of the stiffeners and a lower portion spaced below the stiffeners so as to form an essentially continuous elongated container below the stiffeners and in contact with the site surface. A flowable and settable foundation material essentially fills a space within the container and between the flexible sheet forms and extends essentially continuously upwardly from the site surface to a lower surface of the floor assembly to support the floor assembly thereon when the foundation material has cured.