Construction Timeline & Schedule Planner

A building project is a chain of dependent steps: demo before rough-in, rough-in before inspection, inspection before finish. The Construction Timeline & Schedule Planner turns that chain into a real schedule. Enter each task with a duration and its predecessor, set a start date, and the tool computes every start and finish date, flags the critical path, and draws a Gantt chart.

You get the total project duration, the end date, and a clear view of which tasks have slack and which do not. Adjust durations or dependencies and the whole plan recomputes live so you can pressure-test the schedule before a shovel hits the ground.

• Dependency engine: Forward-pass scheduling from predecessors.
• Critical path: Zero-slack tasks flagged automatically.
• Gantt chart: Visual bars positioned by start and duration.
• Slack & dates: Start, finish and slack per task.
• Project totals: Total duration and end date from start date.
• Parallel work: Independent tasks overlap correctly.
• Export: CSV, JSON or plain text of the full schedule.

1. Start date. Set the project start.
2. Add tasks. Name, duration in days, and a predecessor (or none).
3. Sequence. Chain tasks so each starts after the right finish.
4. Review. Read the Gantt and the critical-path flags.
5. Adjust. Change durations or links and watch totals update.
6. Export. Save the schedule for the team or client.

Example 1 — Linear build. Demo → framing → rough-in → inspection → finish: each waits for the prior, so total is the sum.

Example 2 — Overlap. Electrical and plumbing both follow rough-in with no link to each other: they run in parallel on the Gantt.

Example 3 — Critical slip. Stretch the foundation task and every downstream task shifts; the critical flag shows the impact.

Example 4 — Buffer. Add float by giving a non-critical task slack; the end date does not move.

Example 5 — Two predecessors. Inspection waits for both electric and plumbing, starting at the later finish.

• See the end date: Know when the project truly finishes.
• Find the risk: Critical tasks are where delays hurt most.
• Communicate: A Gantt explains sequencing to clients fast.
• Test scenarios: Replan in seconds by editing durations.
• Parallelize: Spot where work can overlap to save time.
• Private: No account, no upload, nothing stored.