Thanks Paulg31, so kN is not a valid unit when it comes to concrete blocks specifications?
And would you say, the 3.6kN/m² unit used in the wightbuildingmaterials link above, is wrong?
Could someone help me clear the confusion between these two units when ordering concrete blocks?
I have been asked to place an order for 100 x 440 x 215mm 3.6kN blocks for inner skin, but in most stores, I could only find references to 3.6N/mm².
See buildbase link...