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Building data · Space Ledger

Space Ledger overview

Build a space program by department and room, and check it against a gross square-footage target.

Alpha tool. It's early and still changing: expect things to break, and keep your own copy of anything you can't lose. What alpha means

Space Ledger is a space program. You list departments and the spaces in each, with a quantity and a net area per space. The tool adds them up, applies a net-to-gross allowance, and tells you how far over or under the building target you are.

You can see the program as a ledger, as a block diagram, or both at once.

The main screen #

From top to bottom:

  • The toolbar. Project ▾, the program's name, the view switch (Ledger / Split / Diagram), Target, Grossing and Advanced grossing. On the right: + Department, New, Import, Export ▾ and Share / Snapshots.
  • The summary bar: Net allocated, the grossed total, Target, and Remaining (or Over by), with a bar that fills toward the target. See Target and grossing.
  • The work area: the ledger, the block diagram, or both. See Spaces and quantities and Departments.

Start a new program #

From a project page #

  1. Open the project and click + New.
  2. Under Space Ledger, pick Blank or one of the templates:
    • 4,000 SF House
    • 10,000 SF Office
    • Branch Library

The tool opens on a new program that's already saved in that project. See Projects and schemes.

From inside the tool #

The tool opens on its home page. Under Start fresh, click + Blank or one of the templates. You can also click New in the toolbar to clear the screen, or pick a template from the empty ledger.

New work starts on this computer only. To file it with a project, open Project ▾ and click Push to a project…. The push warns you when the project's building area doesn't match the program's target, and offers to use the project's number.

Open existing work #

  • From the tool's home page. Click Tools in the top bar to get there. It lists the program you were last working on and the programs saved in your projects.
  • From Project ▾. The menu lists the programs in your projects. Click one to open it.
  • From a file. Click Import and pick a .spaces.json file. It opens as new work on this computer.

Who can see it #

A program in a project is shared with that project's people. Viewers can open it and look, but can't change it. See People and roles. To share it with someone outside the project, use Share / Snapshots: see View-only links.

A Fixture Count in the same project can start from a program and stay linked to it. It reads the program and never changes it.

An AI assistant connected through the AI connector can read and edit your programs.