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Plan My Catio

Window-connected planning

Check your opening, sill and exterior clearance before you start a custom window-catio plan.

Plan a Window Catio
A tabby in a supported cedar catio attached to a house window, with siding, interior and garden context visible

Start with the opening

Know your window type

These descriptions help you prepare for planning. They are not structural approvals.

Sash Window

Measure the clear opening and confirm how the sash will be secured.

Sliding Window

Measure the usable opening and check the track and frame condition.

Projecting Window

Check the opening method, exterior projection and available support area.

Measurement guide

Measure your window and exterior space

Use the front view for the opening and ground height. Use the side profile for sill depth and clear space outside.

Front and side window measurement guide showing opening width, opening height, height above ground, sill depth, and exterior clearance.
Deterministic SVG measurement guide · no generated dimensions
  1. 1

    Opening widthinside edge to inside edge

  2. 2

    Opening heightsill to the top inside edge

  3. 3

    Height above groundground to the underside of the sill

  4. 4

    Sill depthfront edge to the window track

  5. 5

    Exterior clearanceunobstructed space outside the window

Measure each point once, then confirm it before opening the Planner.

Plan a Window Catio
Wide residential view of a supported window-connected cedar catio

Concept starting point

A clear path from opening to Planner

A full window-plan sample is coming later. Start by checking your opening dimensions.

Opening confirmedExterior clearance checkedPlanner ready

Next step

Bring your five measurements into the Planner.

Plan a Window Catio