[header] How to choose a coffee table [title] Measure the available space. [step] Measure the available space, as well as the preferred space. This will let you know how much wiggle room you have if you find a table that you love, but is outside of your preferred dimensions. 
Having measurements beforehand will also help you avoid the frustration of having to return an item. [substeps] To play around with sizing and shapes, place painter's tape in various configurations and decide which ones you like best.