Were they stacked on their edges or flat?Just back from a 20 mile each way trip to get some patio slabs from SWMBO nieces house (for onward transport to sis in law's in a day or two). As I set off there was an 'orrible rattle coming from the back of the landy, checked usual stuff like the slidy back windows, nothing loose. Set off again thinking maybe the exhaust was clanging off the rear axle due to the load and hoping it wouldn't drop off before I got home. 5 miles from home and realised it was the stack of slabs that were rattling .
Hope they all survived!!!