How Long Does LEGO® Liebherr R 9800 Excavator (42100) Take to Build?

A typical builder finishes LEGO® Liebherr R 9800 Excavator (set 42100, 4,108 pieces) in about 11 hours 30 minutes. Taking it slowly runs closer to 15 hours 30 minutes; building at a fast pace, about 9 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.