Elevator Lobby vs Smoke Curtain Calculator

See how lobby square footage quietly drains revenue compared to compact smoke curtains.

Building Type

Number of Floors

Number of Elevator Banks

Elevators per Bank

Doors per LobbyHow many openings separate each lobby from the corridor?

Lobby Size per Bank (sq ft)Square footage required for each elevator lobby.

Use Our Numbers

Use Custom Numbers

Tip: In Custom mode, switching building type will not overwrite your cost fields.

Construction Cost per sq ft

Cost per Door Leaf

Frame Cost per Opening$500 for single door, $800 for a pair (auto-calculated when using "Our Numbers").

Smoke Curtain Cost per Elevator

Average Daily Rate (ADR)

Annual Occupancy Rate (%)

Average Room Size (sq ft)

Base Rent per sq ft (monthly)

Vacancy Rate (%)

Sale Price per sq ft (one-time)

Annual Revenue Growth (% ADR/Rent)Applied to recurring revenue (Hotels/Apartments). Condos are treated as a one-time sale with no compounding.

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