Before buying your first sofa, check two things: its usable floor space and its delivery route. Start with a tape measure you already own, a room sketch and the retailer’s dimensions.

1. Mark the space the sofa can actually use
- Sketch doors, windows and furniture you’re keeping. Decide how many people need seats and where they’ll walk.
- Measure the available wall span and depth. Include projecting trim and leave access to outlets, vents and controls.
- Mock up the sofa footprint with movable paper markers. Open nearby doors and walk the usual route. Don’t choose matching tables until the seating layout works.
2. Measure the route, not just the front door
- Walk from the delivery entrance to the final position. Record each doorway’s clear width and height, plus narrow hallways, turns, stairs and elevators.
- Measure the usable opening with the door in its delivery position. Account for fixed trim and handrails.
- Follow your tape’s instructions for inside measurements. If its case occupies part of the gap, reading the exposed blade alone leaves that space out.

3. Ask the retailer before committing
- Get dimensions for the condition the sofa will arrive in, including packaging.
- Confirm what its delivery service will remove or assemble. Don’t assume doors, railings or sofa legs will be taken off.
- Send route measurements and photos if access is uncertain. A doorway width alone cannot settle every turn or lift; ask for the retailer’s assessment.
Use your tape, or compare this example
The Stanley PowerLock 25-foot chrome tape measure, model 33-425, has a blade lock. The linked Amazon option is one tape measure. Follow its instructions and control the blade as it retracts.
Skip buying if your existing tape is suitable and readable. This example is not a guarantee of measurement accuracy or sofa fit.
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View the Stanley PowerLock 25-foot tape measure, model 33-425, on Amazon
Sources checked October 13, 2026: Stanley manufacturer-family specifications, the exact Amazon single-item listing and Room & Board’s delivery-measuring guidance. Researched, not hands-on tested or a professional site survey.