How Long Does LEGO® Emmet's Triple-Decker Couch Mech (70842) Take to Build?

A typical builder finishes LEGO® Emmet's Triple-Decker Couch Mech (set 70842, 312 pieces) in about 50 minutes. Taking it slowly runs closer to 1 hour 5 minutes; building at a fast pace, about 40 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.