Reference
The rules, and where the numbers come from
Every verdict the planner gives is one of the checks below. Results follow from the measurements you enter. This is guidance for planning a move, not a guarantee about your building.
Through a doorway
A doorway is a two dimensional opening. The piece passes when two of its three dimensions clear the width and the height. Which two decides how you have to carry it, and the planner says which.
| Presentation | What has to clear |
|---|---|
| Flat | The middle dimension across, the smallest upright. |
| On its side | The smallest across, the middle upright. |
| On end | The smallest across, the longest upright. |
Measure with the door open and the stop in place. A 32 inch door frame often gives about 30 inches of clear opening.
Around a corner
The hard case, and the one a diagonal measurement gets wrong. A rigid piece rounding a right angle between runs of width a and b is limited by the ladder-around-a-corner result:
L = (a^(2/3) + b^(2/3))^(3/2)
The piece’s own thickness comes off both runs before the formula applies, since the far face has to stay inside the corridor through the whole sweep. A half turn that doubles back costs another thickness. A piece that bends, like a mattress or a rolled rug, buys roughly its thickness back.
Into a lift
The cab door is checked as a doorway. Inside, the longest dimension goes against the cab diagonal, since a long piece rides corner to corner, or against the cab height if standing it on end is the better option. The planner takes whichever gives more room and tells you which.
Clearance in the room
| Clearance | Typical |
|---|---|
| Walkway | 30 in, 36 in where two people pass |
| In front of drawers | Drawer depth plus about 24 in |
| Beside a bed | 24 to 30 in on the sides you use |
| Dining chair pull-out | 36 in behind the chair |
| Appliance door swing | Its own depth plus room to stand |
The planner does not flag a gap between every pair of pieces. A coffee table in front of a sofa is deliberate, and warning about it would bury the warnings that matter. Walkways and each piece’s own usage clearance are what get checked.
Cubic feet
Width by depth by height, in feet, summed over everything tagged keep. Movers quote by volume, so a piece you are selling should not be in the number, and here it is not.
Estimated against measured
A piece sized from a preset is marked estimated and draws with a dashed outline. It stays in the plan and in the verdicts, and it appears on a verify list, because a plan built from guesses and one built from a tape should not look the same.
Units
Every length is stored as a whole number of millimetres, whatever you type. That matches the CAD convention, avoids drift under repeated moves, and converts cleanly to inches. Exports carry millimetres and declare it.