The slabs of paving are stacked in a wooden crate almost like a loaf of bread. If you continually take slabs from one side of the crate then you run the risk of the pack tipping over. We advise that where possible slabs should be taken from the centre of the pack to spread out the weight evenly over the crate. As the crate starts to empty it advised that you move some of the remaining slabs to the empty side to prevent the crate tipping up due to uneven weight distribution caused by the slabs being removed.