Abstract: A universal-use knock-down weight-lifting frame with vertically and horizontally adjustable members designed to work in parallel with a second adjustment frame. A main frame has front and rear spaced opposed ends, a front substantially vertical multifunction upright disposed at the front end of the main frame, and a member disposed at the front end of the main frame for varying the vertical length of the front multifunction upright. There is a front substantially horizontal support foot at the front end of the main frame, and an element disposed at the front end of the main frame for varying the horizontal length of the front support foot. A rear vertically adjustable substantially vertical multifunction upright is disposed at the rear end of the main frame, as well as a rear substantially horizontal leg of which the horizontal length can be varied.