Firstly, LHF stands for Left Hand Facing and RHF stands for Right Hand Facing. Both terms indicate which side the chaise of the sofa falls on.
(The Chaise refers to the slight extension of the sofa that does not contain a closed end)
Therefore, for an LHF sofa, the Chaise would be on the Left-Hand Side of the sofa if you were stood looking at it and for a RHF, it would fall on the right hand side.
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