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3 Sofa Arrangements That Make Even a Small Home Look Spacious (Recommended Layouts for 20-Pyeong Spaces) I'll share the three sofa arrangements I found most effective when arranging sofas in a 20-pyeong space. If your space is small, choose a sofa with a low backrest. I recommend a three-seater sofa over a four-seater! Also, you'll need to remove the TV cabinet. I'll explain in detail, starting with the floor plan, as shown in the photo below.