Kooltherm is equivalent to K118
 
Please chose thickness & core on drop down menu.
Eco Liner is standard PIR board with paper face as produced by manfactures .
There might be a small variance in thickness on insulation boards but plasterboard is always good.
(All thicknesses include 12.5mm square edged plasterboard)
 
Standard size board is 1.2 x 2.4m
 
They are just minor cosmetic seconds.
Please see FAQs for more information.