Roll-Off Tire Cage Container

Create a parametric 3D CAD model of a 12-foot long industrial hooklift roll-off tire collection cage container with a total outer structural envelope of 144 inches length, 96 inches width, and 114 inches height. The subframe foundation consists of two parallel 2x6x1/4-inch structural rectangular steel tubes acting as longsills, spaced exactly 35.00 inches outside-to-outside. Incorporate a front lift A-frame assembly with a 3/4-inch thick steel pull eye plate positioned at an industry-standard 36.00-inch inside catch throat height. Weld two structural Z-hook hold-down safety tabs to the rear outer flanks of the 2x6 rails. The floor structure uses 3-inch structural C-channels as crossmembers spaced exactly 12.00 inches on-center, perpendicular to the main rails, covered by a solid 3/16-inch steel floor plate. The open cage superstructure consists of 3x3x1/4-inch square structural tubing for the four main vertical corner posts and one center wall stiffener post on each side. The top perimeter header is made of 4x2x3/16-inch rectangular steel tubing oriented on edge. The side walls and front wall feature an open grid mesh framework constructed from 2x2x11-gauge square steel tubing. Configure the horizontal array of vertical grid bars with a precise 13.20-inch center-to-center pitch (yielding an 11.20-inch clear air gap). Configure the vertical array of horizontal grid rails with a precise 13.25-inch center-to-center pitch (yielding an 11.25-inch clear air gap). The rear of the container features a 50/50 dual split-door swing gate built from 3x3x3/16-inch square tubing frames with matching 13.20-inch grid infill bars. Include a 0.375-inch perimeter clearance gap around the gate frames. Output the model as a clean, manufacturing-ready STEP file with distinct solid bodies for each structural component. I can provid sample pichture

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