Build a LEGO® train layout with the tracks you own

Brick Ballast is a free LEGO® track planner. Enter the straight tracks, R40 curves, switches, crossings and flexible tracks in your collection to find closed layouts you can build.

A layout for your inventory

Each layout shows the required pieces, missing pieces and floor space.

Clear building instructions

Choose a layout, then follow the numbered pieces step by step to build your track.

Loops, sidings and bridges

Explore ovals, rectangles, figure eights, passing loops and multilevel layouts.

Frequently asked questions

Can I make a closed loop with my LEGO® tracks?

Add your inventory and Brick Ballast will find closed layouts that fit your pieces.

Does the plan show which tracks I need to buy?

Yes. Nearly buildable layouts show exactly which pieces are missing.