What should you measure first?
Start with the furniture dimensions from the product page: length, depth, height, and boxed dimensions if delivery happens before unboxing. If the retailer lists diagonal depth, use it. If not, this planner estimates a conservative diagonal from the depth and height.
Then walk the route from outside to the final room. Measure the clear opening of each doorway, the narrowest hallway width, any pivot space at turns, elevator door and cab dimensions, stair width, landing depth, and low ceiling points.
If you are planning the rest of the move, pair this fit check with the moving truck size calculator and moving box calculator so the sofa fits both the route and the moving plan.
A zero-inch mathematical fit is not a comfortable delivery. The buffer covers hands, blankets, slight measurement errors, trim, and the fact that sofas are not perfect rectangles.
Why do diagonal depth and removable legs matter?
Sofas rarely pass through a tight doorway perfectly flat. Movers often stand the sofa on its side, angle the back, remove cushions, or remove legs so the frame presents a smaller profile. A few inches can change the result from unlikely to tight-but-possible.
Be careful with product dimensions. A boxed sofa can be larger than the assembled sofa, while a sofa with removable legs can be smaller than the photo suggests. When in doubt, use the bigger dimension and treat the result as conservative.
Which path points cause the most problems?
| Path point | Measure this | Common mistake |
|---|---|---|
| Main door | Clear width and height with the door open | Measuring the door slab instead of the usable opening |
| Hallway turn | Narrowest width and open pivot space | Assuming a straight doorway fit means the corner will work |
| Elevator | Door opening, cab width, depth, height, and diagonal | Checking cab size but forgetting the elevator door |
| Stairs | Stair width, landing depth, ceiling height, banisters | Ignoring the landing where the sofa has to rotate |
| Room | Wall span, room depth, walkway clearance | Getting the couch inside but blocking the room flow |
What should you do before delivery day?
- Confirm whether the retailer uses boxed or unboxed delivery dimensions.
- Ask whether legs, cushions, doors, or handles can be removed.
- Clear rugs, art, lamps, shoe racks, side tables, and hallway clutter.
- Reserve elevator time and measure service entrances in apartments or condos.
- Protect tight walls, banisters, trim, and door frames with blankets.
- Have tools ready for removable legs or door hinges if the result is tight.
Reviewed and updated July 8, 2026. This planner uses conservative clearance heuristics for ordinary furniture delivery decisions. It does not simulate every 3D rotation, curved arm, soft cushion, or mover technique.
What sources shaped this planner?
HomeTally combines retailer delivery measurement guidance with real user pain points from couch-through-door, apartment elevator, hallway turn, and small-room layout discussions. The result is intentionally practical: it tells you the tightest point and what to measure next.
The calculator uses a conservative box-based estimate, then adjusts for handling buffer, removable parts, doorway width, elevator diagonals, stair landings, and room walkway clearance. That makes it useful for pre-purchase decisions, while still warning you when a real delivery team should verify the route.