Enter the item measurements and the usable through a door dimensions to check clearance, orientation, and tight-fit risks.
Whether it fits comes down to the measurements most people skip.
Real openings run about 1 to 2 inches under the labeled size, and a single inch can flip the result. Check your own measurements before you buy or move.
Verdicts compare all six item orientations against the space using verified building standards. See our methodology
“Checked my mattress before ordering. Tight fit, but it worked with the door removed.” — Online shopper
Measure smart
Four numbers decide nearly every fit check. Get these right and the rest follows.
Don't make these
Most “it didn't fit” stories trace back to one of these oversights.
Frequently asked
Start with the largest rigid dimension, then compare it with the narrowest opening on the route. The final space can be large enough while the door, hatch, or elevator opening still blocks the move.
01Yes. If the item will be moved in a box, mattress bag, blanket, or retail carton, use those outside dimensions for the fit check.
02Treat less than two inches of clearance as a tight fit. Re-measure the opening, remove detachable parts if safe, and plan the turn or loading angle before moving day.
03More like this
Unlock stair simulation, AR visualization, and more.
Open the calculator and check any item against any space.
Open the fit calculator