are welded together on site and the play in the positioning of the tabs provides desired levelling adjustment moreover by welding the two engineered beams together by joining them atop the uppermost surfaces the top inner beam flange 32 of each engineered beam 30 remains free to engage an adjacent s hook on the respective vertical support post accordingly every joint between two adjacent engineered beams 30 requires only 1 vertical support post 10 and only one s hook 14 in other words for every four 16 u2032 6 u2033 u00d7 54 u2033 acoustic panels of the present invention only one vertical support post one s hook and one engineered beam is required for the four panels plus one final vertical support post with s hook to terminate the wall at the end of its span four 54 u2033 wide panels are suspended from the engineered beam and overlap by approximately 4 inches on each of their sides which means that four panels can be suspended from each 16 u2032 length engineered beam no prior art acoustic panel arrangement of any kind has ever been designed with so little hardware to achieve such large and stable dimensional construct that is easy to build at the desired industrial or well pad site referring now to fig4 the hollow spike 60 is the component of the invention which is vibrated or driven into.