20x20m bumper car roof plan AutoCAD 2d drawing is given in this file. Aluminum gutter, curtains brick walls, horses, ties details, and columns are mentioned with sizes. The length and breadth of the bumper car shed is 20m and 20m respectively. The column size is 20x30cm. 10mm ties are provided. For more detail download the AutoCAD drawing file from our cadbull website.