Thanks for the info. Yeah the Belgik edging is surpisingly larger than I thought when I got the sample. It's 7" tall 10" wide and 4" deep. I'm definitely going with a taller edge restraint. Last question. I've only installed cobbles as garden edging before but I'm doing the Belgik edge as garden edge too. Can I install it like cobble or do I need to do a base restrain the back side real good?