i think "the next table " translates better to "to epomeno trapezi".. i guess if you want to avoid people considering "next" as in sequence, then the sentence should be changed so it is more clear that the table is next to something and not next in line :)

I think 'the next table is wood' also ought to be accepted

A probably better translation of διπλανός would be adjacent (see also http://www.wordreference.com/gren/%ce%b4%ce%b9%cf%80%ce%bb%ce%b1%ce%bd%cf%8c%cf%82).

As with other sentences in this lesson, I think adjacent is more matural in English AND a more accurste translation kf the Greek.

made of wood ?

What is the context here for διπλανό can anyone give some examples

Is this the same as το επόμενο τραπέζι?