Not in a while. We don't manufacture sheet goods here, everything is imported. Loads from Europe, loads from China, loads from Russia, so I don't see how the supply can improve in the near future.

British Gypsum (owned by Saint-Gobain, also owner of Jewson) brought some plasterboard manufacturing back onshore, previously they were all imported from Germany, after Brexit. The UK made plasterboards are inferior, very crumbly , don't break cleanly, and they cost more. And that's for something we already have existing manufacturing capacity here. For something 100% imported like sheet goods there's even less chance prices will drop, barring a off-the cliff drop in demand. Importing more from NA won't help much given the weak pound.

Not long back trades ppl had been stockpiling and passed the increased cost onto customer, reaping the profit. When you see plumbers and sparks loading up their vans with plywood you know the market is broken.