I want to make my cold frame less hazardous, currently has one broken pane and is standard 4mm hort glass, not toughened.
Plan was to buy a sheet of polycarbonate twin wall and cut to size. So far I've found a few places that sell the polycarbonate sheets, and look relatively cheap until you add in P&P, a £20 sheet can end up with £30 delivery charge in one example.
Anyone else done a similar replacement and can point me to a reasonable priced source? I'll also call some of the local builders merchants