Project Toolkitby Maxime Lab
Schedule · tool 6 of 7

Schedule · tool 6 of 7

Resource Levelling and Smoothing

Resource Levelling and Smoothing: makes the plan possible for the people who must do it.

Best for: After the first schedule draft · Time: 1 hour
Domain: Schedule · Focus area: Planning

How it works

A plan can be logically sound and still ask one person to work 80 hours in a week. Levelling moves tasks to fit availability, and may extend the end date. Smoothing does it within available float, so that the end date holds.

  • Check load per person, not per team.
  • Levelling can change the critical path.
  • Plan under 100%: meetings and support are real.

How to apply it

  1. Chart workload per person by week.
  2. Find the peaks.
  3. Move non-critical tasks into float.
  4. Extend the date or add help if peaks remain.
In practice

Ana is at 140% in week 6. Moving a non-critical review into week 7 brings her to 95%.

Pro tip

Planning people at 80% isn’t laziness. It’s accepting what the week actually contains.

Use it

Quick check

Which method keeps the end date fixed?

Sources

  • PMBOK® Guide, 8th edition, and The Standard for Project Management (PMI, 2025)

Last reviewed 2026-11-02 against the PMBOK® Guide, 8th edition · Practitioner review pending · How this guide is made