The first sofa I bought for my apartment took six hours to get through the door. It was a beautiful, enormous, completely wrong choice. My building has a staircase that turns 90 degrees on every floor. The sofa did not.
That sofa is now in my sister's house in New Jersey. She bought it from me for $100 and a lot of guilt.
Measure Everything First
Door opening. Hallway width. Staircase turn radius. Elevator dimensions if applicable. Then measure the sofa's diagonal (height plus depth, divided by 1.4). That's the minimum clearance you need in your stairwell turn.
The Scale Rule
In a small apartment, a sofa should take up no more than one-third of the room's width. If your living room is 12 feet wide, your sofa should be no wider than four feet — or 48 inches. Most sofas are 72–96 inches. Do the math before you fall in love with something online.
The Lighting Trick for Scaled Furniture
A pendant light or floor lamp positioned near your sofa makes it look more intentional and less crowded — lighting draws the eye upward and creates the impression of height and space around the furniture.
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