The weave on my table appears to be ‘sagging’ in some places – is this normal?

Yes – common with all outdoor woven furniture, the weave will react to ambient conditions and temperatures. When very cold the weave will become stiffer than normal and when very hot or placed in direct sunlight the weave will become more elastic. The weave will always revert to its normal elasticity once the ambient temperature stabilizes. This is quite normal and has no impact on product quality or performance.