There are 7 rows of custom grooves across the BRICK RACK Model 7 Series.
And you can slide in up to 25 bricks in each groove.
7 grooves....25 bricks per groove...
that's 175 bricks and minifigures!
And each of the 7 rows is exactly 6 LEGO bricks apart.
Alternate 2X3 bricks and 2X4 bricks to give your minifigures enough "elbow" room.
If you need extra 2X3 or 2X4 LEGO bricks, we have more for sale in our online store.