How Long Does LEGO® Loop Coaster (10303) Take to Build?

A typical builder finishes LEGO® Loop Coaster (set 10303, 3,756 pieces) in about 9 hours. Taking it slowly runs closer to 12 hours; building at a fast pace, about 7 hours.

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.