Build a cat tree by dragging parts onto the wall (on a phone, tap a part to add it). Everything is in inches and snaps to 1 in. Switch to 3D to look at it from any angle, and use the rough shopping list before you head to the store.
Saved designs live in this browser on this device. To open a design on a different phone or computer, copy its link and text or email it to yourself.
Each landing spot, highest first, with the drop to the nearest surface below it (within 12 in sideways). Cats handle 18 in easily; past 30 in, add a step.
Uses each part's own depth. Assumes 3/4 in plywood, 4×4 posts, 3/8 in sisal (about 37 ft of rope per foot of post), plus 15% waste. A starting point, not a cut list.