Naku Trail

Naku Trail answers one question before you spend money 💰: will this sofa, wardrobe, bed or fridge actually get into your home? Measure 📐 the way in once, from the front door, along the hall corner, up the stairs and through the lift or the bedroom door. Every piece you own or want to buy is then checked against it. Each passage is solved with real geometry, not a rule of thumb. Doors are checked by cross-section, hallway corners with the exact turning formula, and doors off narrow halls and switchback landings by a motion planner 🗺️ that searches every position and angle. Stairs are checked for headroom across their slope, and lifts for a tilted fit inside the cabin. You see 👀 which passage stops it, the deciding dimension, and how many centimetres are missing. You can also try it yourself. On the plan 🗺️, slide the piece with one finger and twist it with two. It stops where it touches a wall, and a gold ribbon shows the tightest gap as you go. Naku Trail can replay its own path when you ask, or tell you plainly that no path exists. Shopping? "Biggest that fits" works backwards from your route 🧭 and gives the longest piece for each depth. Listing Check ✅ tests a shop's three numbers 🔢 against every route at once. Fix It shows what taking the legs or a door off would change, and the maneuver card turns a fit into step-by-step instructions for whoever does the carrying. For quiet evenings, thirty mover's puzzles on the same engine teach the turns. Naku Trail works offline 📴 and keeps everything on your phone.