Know if it fits before you buy, move, or deliver
What you can use this for
Pillar 1 · It solves every space
A dedicated solver for every space
Each space type has its own geometry, tolerances, and edge cases — tuned for that exact problem. Pick one to see how it works.
Doorways & Openings
Every face of your item is tested against the opening — straight, angled, tilted, and in full 3D rotation. We find the way through if one exists.
Pillar 2 · It models the real world
Real items aren't perfect boxes
Orientation, compression, round shapes, and the tightest pinch point on the path — modeled, not ignored.
Every orientation, then compound tilt
We check all 6 physical orientations first. When those fail, we explore simultaneous pitch and yaw — the creative angling real movers use to get a piece through.
Whole-path solving
Real moves involve multiple obstacles. We solve "through the door AND down the hallway" as one connected problem and surface the single tightest pinch point that actually decides it.
Soft-body compression
Mattresses, cushions, and cardboard boxes aren't rigid. We model per-category compression — a mattress can compress up to 15%, cushions up to 30% — and re-test when the rigid solve says "doesn't fit."
Cylinder & Round Items
Round tables, drums, and water heaters aren't boxes. We use circular cross-sections — a round table only needs its diameter to clear the opening, and sweeps corners as a circle, not a rectangle.
Real-World Tolerances
We model trim, baseboards, weatherstripping, handrails, radiators, and elevator tracks — with height-dependent obstacle profiles, not flat deductions.
Disassembly Awareness
Say "I can take the legs off" and we split the item into pieces — tabletop, legs, frame — solving each one independently. You see which pieces fit and which don't.
Handling Feasibility
A 3mm clearance over 2 meters with a 50kg item is geometrically possible but physically impractical. We score difficulty by weight, path length, and angular precision — and tell you how many people you need.
Pillar 3 · You can trust & act on it
Beyond yes or no
Graduated verdicts, confidence ratings, and transparent assumptions — so you know exactly how much to trust the answer.
Graduated verdicts
Five levels from "fits with room to spare" to "does not fit" — with exact clearance in inches and mm, plus a ±¼ in real-world tolerance band at the boundary. You see margin, not a vague thumbs-up.
Confidence rating & transparent assumptions
Every result carries a confidence level — proven to uncertain — and surfaces every assumption ("assumed 8 ft ceiling", "item is rigid"). You decide if they match your situation.
Actionable Warnings
Context-aware tips like "tilting requires 2+ people", "watch for wall fixtures", or "professional movers recommended". Not just a fit result — guidance on how to execute.
Iterate without re-typing
Change a dimension or ask "what if the door was 34 inches?" — we re-run only what changed and keep the rest in context.
Under the hood
Smart by default
Just describe your move in plain words. We handle the parsing, the dimensions, and the math.
AI-assisted parsing, deterministic fit math
Two AI models read every query. A fast pass extracts items, dimensions, and spaces; a second, more powerful pass peer-reviews anything ambiguous. Regex runs alongside as a safety net — so "Can my 84-inch couch fit through a 32-inch door?" parses exactly the way you'd expect. The fit math itself is deterministic — same inputs, same answer.
Built-In Dimension Catalog
Don't know the exact dimensions? Say "queen mattress" or "65-inch TV" and we pull standard dimensions from our ever-growing catalog — clearly labeled as estimated so you always know what came from you versus us.
Multi-Item & Packing
Check multiple items at once. We run 50+ packing trials across 5 strategies — space-efficient, easy-access, grouped, balanced, and randomized — keeping the best layout. Stacking rules, loading order, and residual space analysis included.
Mixed Unit Support
Inches, feet, centimeters, millimeters — mix and match freely. We normalize everything internally and report results in your preferred unit.
Where you use it
Advanced fit workflows
Beyond a single check — reverse queries, the browser & storefront, proofs, and smart alternatives.
Reverse the question
Ask "what door width do I need for a sofa?" or "what fits in my 24-inch opening?" We resolve the standard dimension, run the verdict, and return catalog-matched answers ranked by fit.
Browser Extension
Chrome · Edge · Firefox
Check fit while you shop. Our extension for Chrome, Edge, and Firefox scans retailer product pages, extracts dimensions automatically, and runs a fit check against your saved spaces — all without leaving the store's site.
Add to browserShopify Storefront App
Embed fit-check directly on product and cart pages. Shoppers see if a couch, mattress, or fridge fits their door, hallway, stairs, elevator, or vehicle — before they hit Buy. One-click install, no theme code edits.
View on the Shopify App Store →Step-by-Step Mathematical Proof
Most verdicts show the measurements, assumptions, and math behind the result. See the exact formula, the substituted values, and the result for each step — from input dimensions through orientation testing to the final verdict.
Intelligent Alternatives
When something doesn't fit, we don't just say no. Up to 5 actionable alternatives are generated automatically — smaller items, different paths, disassembly options, or creative orientations.
And the essentials, handled
Your data, your call
GDPR Article 17, fully implemented — not just linked. Most apps treat "delete account" as a 30-day ticket queue. We treat it as a button.
Ready to See if It Fits?
3 free fit checks + 1 visual proof to start. No credit card required.
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