A moveable bench, on legs, & with storage, might be very practical for extra dining seating on the main part of the patio.
Q
Storage similar to this for the BBQ area could be practical.
Block built & rendered bases might be better in terms of weather protection.
This option shows integral planting at the back of the seat
Something like this offers seating and some planting combined.
This is a selection of bench styles so that we can get an idea of what you would like.
A moveable bench, on legs, & with storage, might be very practical for extra dining seating on the main part of the patio.
Q