A restaurant tables design needs to meet the circumstances under which it is being used. For example, if your restaurant includes an external dining area, what protection are you going to offer your patrons. For most restaurants, the choice is either an awning or an umbrella. Both are fine and suit most restaurants.
The problem is, if you are intending on using an umbrella, do your tables have the necessary design features to hold that umbrella? Generally speaking, this requires a restaurant tables design to include a central hole in the table and a counter-balance cup at or just above floor level.
Being able to use an umbrella is just one issue for outside tables. If the external area itself cannot be secured, you will need to work out how you are going to secure your tables after hours. Will you bring them inside or to a secure area? If so, the tables need to be light enough to be moved yet sturdy enough to handle that frequent movement. An alternative of course is a chain and lock, if the table has a suitable way of being chained that it is.
Buying restaurant furniture can be an involved process. It is not a case of trying to find what you want. You need to list the requirements of the furniture and find furniture that meets those requirements. We have mentioned in previous posts the effect of weather on furniture - add that to the equation and your range of options decreases.
When looking for furniture for your restaurant, it can often be a good idea to take your list of requirements to a restaurant furniture specialist and let them show you which restaurant tables design is best suited to meet those requirements.