What the widths are for
A wall is formed from as few panels as it can be. This one carries 1200 mm of wall in a single lift, so a 3.6 m run is three panels and six ties rather than nine panels and eighteen. Fewer joints is also a better face: every vertical joint is a line that has to be made good.
The five narrower widths, 200 to 400 mm in 50 mm steps, are what make a run up to length once the full-width panels have done the distance. Order the range together: a site that is one make-up width short is a site waiting on a delivery.
