I'm not exactly gods gift to building work but can throw a Billy Basic wall up. I'm after building a raised bed to finish off a corner of the garden. Truth is though I know balls all about Breeze block which is what I'd rather use as I'll be rendering it (eventually). I'm basically building an equalateral (sp) triangle 6foot long on each edge so it should be stable. Can I use those ridiculously lightweight blocks or are they just going to soak up the mud into the wall? Do I need to put piers in like when you do brick work? I know I should probably add this to a DIY forum but I can't be arrsed signing up truth be told.