Will It Fit Calculator

Furniture fit checking verifies whether a piece of furniture will physically fit in a room and through doorways, hallways, and stairwells during delivery. Many expensive furniture returns are caused by buyers who only measured the room but not the path to get the furniture there.

Room clearance formula: Available Space = Room Dimension − Existing Furniture − Traffic Clearance

Traffic clearance guidelines:

• Minimum walkway between furniture pieces: 18 inches (45 cm)
• Comfortable walkway: 24–36 inches (60–90 cm)
• Primary walkway (kitchen, main hallway): 36–48 inches (90–120 cm)
• Wheelchair clearance under the Americans with Disabilities Act (ADA): 36 inches (91 cm) minimum, 60 inches for turns

The delivery path, which is what actually goes wrong: Enter the narrowest doorway on the route and the calculator checks the thinnest side of the piece against it. That single measurement catches most failed deliveries, because a sofa that fits the room beautifully still has to get through the front door, round the turn at the bottom of the stairs, and past the bannister.

Measure the tightest point, not the widest. Door stop to door stop, not frame to frame, since the stop is what the piece actually hits.

Standard doorway dimensions:

• Interior doors: 32 inches wide × 80 inches tall (typical); 36 inches wide meets ADA
• Exterior/front doors: 36 inches wide × 80 inches tall
• Patio/French doors: 60–72 inches wide

Tilting helps when a piece is only slightly too wide, since a doorway’s usable diagonal is √(width² + height²), and an 80-inch-tall 32-inch door gives about 86 inches on the diagonal. That buys length, not width. If the narrow side of the piece is wider than the door, tilting will not save you.

Furniture-to-room ratio recommendations:

• Sofa: should leave at least 18 inches from each adjacent wall
• Coffee table: 12–18 inches from sofa; 18 inches from TV stand
• Dining table: 36–48 inches from walls (to allow chairs to pull out freely)
• Bed: minimum 24 inches clearance on each accessible side; 36 inches preferred

Worked example: 12-foot × 14-foot living room. Placing a sofa (90 inches wide × 36 inches deep) and coffee table (48 inches × 24 inches), plus 36-inch TV stand on opposite wall.

• Total room width (144 inches) − sofa (90 in) = 54 inches remaining
• Traffic path behind sofa to door: 54 in is sufficient, comfortably over the 36 in wanted for a primary walkway
• Down the 14-foot depth (168 in): sofa 36 + gap 18 + table 24 + gap 12 + TV stand 18 = 108 in used, leaving 60 inches spare. Plenty, and enough to pull the sofa off the wall if the room feels tight against it.