How Long Does LEGO® 8 Straight Rails Gray 4.5v (7850) Take to Build?

A typical builder finishes LEGO® 8 Straight Rails Gray 4.5v (set 7850, 32 pieces) in about 5 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.