See what fits
before you build.
Plan a tiny house, campervan, shipping container, or a smaller next home with real interior dimensions. Instant fit-check — no 3D modeling required.
Tiny houses · Campervan builds · Shipping containers · Downsizing to a smaller home.
The four pillars
Any small space, one planner.
Real interior dimensions, niche furniture catalogs, and warnings before you buy.
Moving to a smaller apartment or senior residence? See which of your current pieces still earn their place.
Plan a downsize →Design your tiny home on wheels or foundation. Presets from 8.8 to 28 m², with loft beds, wet rooms, and stove clearances built in.
Plan a tiny house →Sprinter, Transit, VW California or custom. Real interior dimensions, wheel arches placed correctly, sliding-door clearance checked.
Plan a campervan →10ft to 40ft high-cube. Design around the 235 cm width constraint, plan door clearance, and stack for L-shape builds.
Plan a container →A quieter idea of home
A smaller home is not a smaller life. It is the same life, with fewer things in the way.
Smallfit is built around one belief — what you choose to keep should make the next room easier to live in, not harder.
How it works
How downsizing gets easier.
No setup, no account, no learning curve — a quiet way to think through your smaller next home before moving day.
- 01Enter your new room size
Start with the dimensions of the smaller space — apartment, senior flat, or simpler home.
- 02Place the furniture that matters most
Test beds, sofas, storage, tables, and other essentials against the real room.
- 03See what still works
Use the layout to decide what fits comfortably and what may be better left behind.
Who it’s for
Designed for smaller next homes.
Test which pieces follow you to the smaller flat — and which are better donated, sold, or stored.
Plan senior apartments and assisted living rooms with clear walking lanes and gentler layouts.
Quietly map a parent's next home together, so familiar furniture finds its place before the move.
Plan your Sprinter or Transit build before you cut a single panel.
See if your future life fits in 15 m² before you commit to the trailer.
Plan with intention — fewer pieces, more breathing room, a calmer everyday space.
Less is more
A more intentional way to live with less.
Downsizing is not only about fitting into a smaller space. It is about choosing what matters, reducing friction, and creating a home that feels calmer, lighter, and easier to live in.
- Keep the pieces that earn their place in daily life.
- Let go of duplicates, oversized items, and quiet clutter.
- Leave breathing room around doors, beds, and seating.
- Plan with intention instead of guessing on moving day.
A quieter checklist
Questions, answered quietly
Downsizing, in plain terms.
Measure the new room first, then place your essential furniture in Smallfit. The floor-used reading and walking-lane check show how much breathing room is left before you commit.
Ready when you are
Start with any space. It takes a minute.
Free while in beta · No account required to start · Save your work with just an email.