For the table
Make room
for conversation.
Low flowers can sit in the middle of a gathering while leaving the people, food and glassware in view.

Flowers
and shared space
and shared space
The footprint
Start with the table, not just the flowers.
A long table, a round table and a small dinner setting call for different footprints. Plates, serving dishes and glasses all need space. A low central arrangement or a series of smaller vessels can follow the way the table is used.
We consider height as well as width so guests can see each other across the table.
More than one table
Keep a shared direction.
Several arrangements can use a common palette and still vary in shape. The table count, approximate dimensions and style of the gathering are useful first details.
Plan flowers for a gathering