How Long Does LEGO® Overhead Gantry and Lighting Maintenance Wagon (7821) Take to Build?

A typical builder finishes LEGO® Overhead Gantry and Lighting Maintenance Wagon (set 7821, 90 pieces) in about 15 minutes. Taking it slowly runs closer to 20 minutes; building at a fast pace, about 10 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.