Plan the whole build
Turn the way you travel into a realistic sequence, budget and payload target before you buy parts.
Start freeFor owners and DIY builders
Plan your van before mistakes get expensive.
Get a free personalized roadmap in four questions. Go deeper with calculators that turn payload, power, water, materials and budget into practical quantities.
Free Build SnapshotNo credit cardBuilt by van builders
Your Build Snapshot
Know what to do next.- Stage
- Van selected
- Focus
- Layout & payload
- Next
- Measure & map
The real problem
A van is one small space with every system competing for it.
Electrical changes the layout. Water changes payload. Roof equipment changes solar and ventilation. Keystone connects those decisions before parts are ordered or finished work has to be reopened.
One connected build plan
Every major system.
In the right order.
Size electrical correctly
Estimate battery, solar, charging and routed wire quantities around your actual loads and layout.
Solve water and climate
Balance tank size, off-grid days, ventilation and heat without overbuilding the van.
Finish without do-overs
Coordinate hidden routes, materials, weight and clearances before the walls and cabinets go in.
Plan before the walls go in
Calculators that turn questions into quantities.
Estimate payload, insulation, battery capacity, solar, wire routes, water, climate and interior materials—then carry those decisions forward.
How it works
Clarity in three steps.
- 1
Take the free Snapshot
Tell us about your van, travel style, budget and build stage.
- 2
Get your roadmap
See the decisions shaping the build and the next milestone to complete.
- 3
Calculate before you buy
Use connected tools and parts guidance when the deeper detail matters.
Start free
Use the roadmap for direction. Upgrade when you need quantities.
The free experience identifies what comes next. Founding Access adds the calculation depth for decisions that affect cost, payload, fit and rework.
Founding Access
$29/ month
$249 annually · save $99- Six connected phase calculators
- Electrical routes and purchase quantities
- Payload, shell, water and interior estimates
- Saved calculations and build milestones
Questions
Everything you need to start.
Is this only for DIY builders?+
No. Use it to guide your own work, manage specialists, or coordinate a mix of both.
What vans does it cover?+
The system starts with how you will use the van, then helps you confirm vehicle-specific dimensions, payload and fitment.
What do I get for free?+
A personalized Build Snapshot, starting roadmap, milestone dashboard, connected requirements planner and weekly Build Notes.
What does Founding Access add?+
Six connected phase calculators, routed electrical purchase quantities and saved planning work for payload, shell, power, water, interior and commissioning.
Your next move