G'Day all,   I have drawn up some scale rulers in CAD. English feet and inches in 1:16, 1:24 and 1:48. EDIT: added 1:32   When printing you may have to adjust your printers scaling until 12 feet on the 1:16 ruler is 9 inches.   After printing I cover both sides with Scotch 'Magic' tape before cutting them out.   I hope somebody finds them useful. Scale Rulers.pdf