hello, I plan to replace the mat Grindel which is very damaged at its base, I would like to know the mechanical characteristics (I know the dimensions 3.5 '' x 6 '' and 3.1mm thick) of the original mat to find in recent profiles. the weight per meter or per foot and if possible the "moment of inertia" XX 'YY'. By browsing the forum the original mat would be overdetermined I saw it when I lost a spreader with 20kn without breaking the mast. Thank you