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Home Elevator Hoistway Footprint Calculator

Reviewed for 2026, updated September 8, 2026.

Estimates the clear hoistway size, the floor area taken on every level and the value of that space, for homeowners and architects planning where an elevator will go.

Your numbers

Results update as you type.

Your estimate

Clear hoistway size (width x depth)...
Outside footprint per floor...
Total floor area consumed...
Value of the floor area given up...

Estimates only. Assumptions are listed below, and you can change every input.

The cab you ride in is only part of the space a home elevator consumes. Around it sit the running clearances, the guide rails, the door assembly and the hoistway walls, and that whole footprint repeats on every floor the elevator serves. In a well-finished home, the square footage given up to the shaft is real, and it is worth knowing before a wall gets moved.

The calculator takes your cab interior dimensions, adds the allowance your supplier specifies on each side, then adds the hoistway wall thickness to get the outside footprint. It multiplies that footprint by the number of floors served and, optionally, by your home value per square foot. It is a planning estimate, not a construction drawing; the exact allowances depend on the drive system and the model, so confirm them against the manufacturer layout sheet.

How to use this tool

  1. Enter the interior cab width and depth of the model you are considering.
  2. Take the per side allowance and the hoistway wall thickness from the manufacturer layout sheet and your builder.
  3. Set the number of floors served and, if you like, your home value per square foot, then read the hoistway size, footprint and space value.

What the math assumes

  • The same side allowance is applied to all four sides of the cab; real layouts often need more room on the rail side and the door side, so use the largest figure from the manufacturer drawing for a conservative estimate.
  • Hoistway walls are assumed on all four sides at the thickness you enter; if one side is an existing wall, reduce the thickness accordingly.
  • The footprint is treated as identical on every floor served; pit depth and overhead clearance are vertical requirements and are not part of this area estimate.
  • Square feet are calculated from inches using 144 square inches per square foot.
  • The floor area value simply multiplies area by the per square foot figure you enter; it is not an appraisal or a resale forecast.

Frequently asked questions

Why does the elevator take space on every floor?

The hoistway is a continuous vertical shaft, so the same footprint is lost on each level it passes through, including levels where the elevator does not stop if the shaft runs past them.

Does this include the pit and the overhead clearance?

No. Those are vertical requirements below the lowest stop and above the highest one. They matter for feasibility but they do not change the floor area, which is what this calculator estimates.

Can I use it for a pneumatic or shaftless elevator?

Yes. Set the wall thickness to zero if the unit is self-supporting and uses its own tube or enclosure instead of a framed hoistway, and use the manufacturer outside footprint for the cab and allowance figures.

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