This is the first of many articles on the subject of Theatrical Scenery, or sets for theatre, as you may want to call it.
These differ from set builds on films or TV, mainly by virtue of the venue specific fire safety specifications as well as having greater freedom from the standards required from high definition cameras.
Indeed, the use of metaphor and audience collusion in imagining a different space, allows for great simplification in the materials and finishes needed from your set build.
Often two dimensional pieces of set will more than suffice to convey a sense of what is needed, rather than having to actually create the object.
This metaphorical aspect gives great scope for being creative.