How to Measure for a Sectional (Before It Ships)

A sectional is usually the largest single thing a person brings into their home, and the one most often bought on hope rather than a tape measure. Before you order, three sets of numbers deserve ten minutes of your evening.

The room: footprint and walkways

Start with the sofa's footprint, not the room's square footage. Take the listed width and depth and mark the actual rectangle on your floor with painter's tape, chaise included. Then live with the tape for a day. Walk your normal routes past it, open every door and drawer near it, and sit where the seat would be to check the sight line to the television or the window.

The clearances that keep a room usable are smaller than most people expect, but they are not optional: about 30 inches for a main walkway, 18 inches between the sofa and the coffee table, and at least 3 feet in front of anything that opens, whether that is a media console or a balcony door. If the tape rectangle forces you to sidestep anywhere along a daily route, the sofa is too big in that orientation. Try rotating the layout before you size down.

The journey: doorways, halls, and stairs

The second set of numbers is the one that ruins delivery days: the path from curb to living room. Measure the narrowest doorway on the route, top of the stairwell turns, elevator door and cab depth if you have one, and any hallway that bends. A traditional one-piece sofa has to clear all of it diagonally, and the useful comparison is the sofa's diagonal depth against your doorway's diagonal, not width against width.

This is where construction changes the math. A modular design like our Cloud Sectional arrives as separate seats that each fit through a standard 30-inch door with room to spare, so the stairwell turn that would send a one-piece sofa back to the warehouse simply stops mattering. If your building has a freight elevator booking system or a certificate-of-insurance requirement, sort that out before the delivery window, not during it.

The seat: numbers you sit on

Finally, check the three dimensions that decide comfort and that almost nobody reads: seat depth, seat height, and back height. If you like to sit upright with your feet on the floor, look for a seat depth near 22 to 24 inches. If you fold your legs up or nap on the sofa, deeper is better and a chaise earns its keep. Compare the numbers against a sofa you already know rather than judging them in the abstract.

Before you order

Every Tloom listing carries full dimensions on the product page, and our team will confirm any measurement that is not listed. Send the question through the Help Center before you buy rather than after. Delivery details, including what to expect on larger freight pieces, live in our Shipping Policy, and if the piece truly does not work once it is home, you have 30 days under our Refund Policy. The tape measure is still faster.