Note these are Grant Westfield multipanels not AB Multipanels - AB Building Products are a large distributor in the South West. See this post.   I am planning to use the AB Multipanels to line my bath alcove in the Little Brown Bungalow. So far, so good.   However, I may want to adapt it to be a shower in say 10 years, and that the price of the panels is quite high at £145 or so for an 8x4 in the standard finishes before you even start getting into trims and fixings. I only n