The words sectional and modular when used to describe a sofa are often interchanged but this is not strictly the case.
A Sectional Sofa is a large sofa that due to its size has to be built in sections. If the sofa was constructed as one single unit transporting would prove very difficult and negotiating entry to a property could prove almost impossible. By constructing the sofa in manageable sections a large sofa or corner sofa can be more easily manoeuvred and once on site the individual components can then be attached to form the finished item.
The majority of Sectional Sofas have only one possible configuration and cannot be arranged into a different shape or have further units added at a later stage to form an alternative configuration.
Infinite combinations of seat and arm – corner units are possible and this is the essence of a truly modular sofa.
A Sectional Sofa is not necessarily modular, however a modular sofa can always be described as sectional.
A modular sofa, on the other hand, allows the user to construct a sofa of any size and shape by connecting a series of standard modules together. The most simple form of modular
sofa unit would consist of 2 different modules. The first, a seat unit which consists of a seat and a back with no arms, the second a corner – arm unit. This would be a square,
symmetrical unit where the seat has two identical back supports perpendicular to each other. One of the back supports also forms the arm of the sofa depending on where that unit
is situated.Sectional Sofa
For instance, by linking an arm – corner module. a seat module and another arm – corner module a 3 seat Sofas can be configured. If a 4th seat module is then connected at right angles to one of the arm – corner units then a 4 seat corner configuration is formed. Adding further seat units on either side will extend the corner sofa and by adding a corner unit to the new extension and further seat units at right angles to the new corner unit a U shaped sofa is formed.