6th Builder Timeline
See how long it will take you to unlock the sixth builder from your village export.
- Track all OTTO Hut unlock requirements
- Cannon Cart, Mega Tesla, Battle Machine, and Battle Copter progress
- Time estimate based on your current levels
- Builder Base gear-up tracking
About 6th Builder Timeline
The 6th Builder is one of the most important milestones in Clash of Clans progression. Unlocked through the OTTO Hut in Builder Base, the 6th Builder lets you run an extra builder in your Home Village — dramatically accelerating your upgrade speed.
Unlocking the 6th Builder requires completing four specific Builder Base objectives: upgrading the Cannon Cart to level 18, the Mega Tesla to level 9, the Battle Machine to level 30, and the OTTO Hut itself to level 5. Each requirement has its own resource and time cost, and the order you tackle them can significantly affect your total unlock time.
The 6th Builder Timeline calculator shows exactly where you stand on each requirement, estimates the remaining time based on your current levels, and recommends the optimal upgrade order to minimize total days to unlock.
How to use 6th Builder Timeline
- 1Import your village data using the village export JSON.
- 2The calculator reads your Builder Base progress automatically.
- 3View your completion status for each OTTO Hut requirement.
- 4Review the estimated time remaining to unlock the 6th Builder.
- 5Follow the recommended upgrade order to minimize total unlock time.
Complete OTTO Hut requirement tracking with optimal ordering — see exactly which Builder Base upgrade to prioritize next.
Calculation methodology
Player-linked results use current public profile data returned through the official Clash of Clans API. Export and manual modes use the values supplied in the imported snapshot or calculator fields. Costs and level ceilings come from ClashVault’s structured entity and upgrade-data catalogs; the result is calculated from those inputs rather than generated from descriptive page text.
Results are planning estimates, and a newly released Supercell update may change a cost or cap before our catalog is reviewed. Confirm recently changed values in game and send us a correction if a displayed input no longer matches.
A calculated duration is not a guaranteed completion date. Unless a tool says otherwise, it does not simulate future builder or Laboratory availability, farming pace, storage constraints, magic items, temporary event boosts, downtime, or later balance changes. Use the result to compare options and prepare the next queue, then confirm the actual upgrade screen in game.