Last Planner and Lean Construction
Pull Planning in Practice – How Is a Construction Project Schedule Planned Together?
Pull Planning helps construction project participants plan work progress
together by working backwards from the final goal. The method improves commitment,
reduces disruptions and makes the schedule more realistic.
Last Planner
•
6 min read
A construction project schedule is often created by project management and then shared
with site participants. On paper, the schedule may look good, but in practice,
work phase dependencies, resources and real prerequisites for execution
are not always considered accurately enough.
Pull Planning brings the people responsible for executing the work into the planning process.
Instead of setting the schedule from the top down, work phases
are planned together backwards from the final goal.
What Does Pull Planning Mean?
Pull Planning is a Lean Construction method where project participants
plan work phases together backwards from the target date. The goal
is to identify what must happen before the next work phase and what
prerequisites are needed for the work to succeed.
Pull Planning does not only ask “when will this work be done?”, but “what needs to be
ready so that the next work phase can begin?”
The method helps identify dependencies, constraints and critical points before
they cause delays on site.
Why Does Pull Planning Work in a Construction Project?
In a construction project, work is strongly dependent on other work phases. A delay by one contractor
can prevent the next phase from starting, even if resources are otherwise
ready.
Pull Planning works because it brings different parties to the same table. When
subcontractors, site management and project management plan together, the schedule
becomes more realistic and commitment improves.
Key Benefit
Work phase dependencies become more visible, and problems can be solved
before they stop production.
How Does a Pull Planning Session Proceed?
Pull Planning can be carried out as a workshop where, for example,
a specific construction phase, floor, section or critical part of the project is planned.
- Define the goal or completion date
- Identify the work phases needed to reach the outcome
- Plan the work phases backwards from the target date
- Identify dependencies and prerequisites
- Agree on responsible persons and preliminary timings
- Record constraints, risks and open questions
1. Start with a Clear Final Goal
Pull Planning always starts with a clear goal. The goal may be, for example,
the handover of one section, completion of building services, the start of interior works or
a specific milestone in the overall project.
Without a clear goal, planning can easily become a general discussion.
That is why it is important at the start of the workshop to define the outcome being planned toward.
2. Plan the Work Phases Backwards
Traditional scheduling often starts from the beginning of the project.
In Pull Planning, you start from the end and ask: what must be ready just
before the target?
After that, you move backwards one step at a time. Each work phase is connected
to what happens after it.
Backward planning helps reveal dependencies that are not always noticed
when planning forward.
3. Identify Task Prerequisites
For each work phase, it is worth asking what is required to start it. Are
completed plans, materials, approvals, a free work area or the previous
contractor’s completed work needed?
When prerequisites are recorded visibly, the project team can remove constraints
in time, not only when the work should already be starting.
A Good Workshop Question
“What could prevent this task from starting or being completed as planned?”
4. Involve Subcontractors in Planning
The greatest strength of Pull Planning is participation. The people carrying out the work often have
the best knowledge of how long a work phase actually takes and what is required
for it to succeed.
When subcontractors participate in planning, they do not merely receive
the schedule; they help build it. This increases commitment and makes
the schedule more practical.
5. Turn the Plan into Weekly Planning
Pull Planning produces a shared plan, but that alone is not enough. The plan
must be brought into weekly planning, where concrete tasks for the next
week are agreed.
This is where the Last Planner method becomes a practical management tool. At the weekly level,
the team checks which tasks can truly be executed and who is responsible for them.
The Most Common Mistakes in Pull Planning
Pull Planning works best when it is done as genuine collaboration. The method
does not deliver its full benefit if the workshop remains only a formal schedule discussion.
- The right people are not invited to the workshop
- The goal is not clear enough
- Dependencies are not recorded visibly
- Constraints are not followed up after the workshop
- The plan is not connected to weekly planning
How Does Pull Planning Relate to the Gantt Schedule?
Pull Planning does not replace the Gantt schedule. Gantt provides the project’s long-term
overall view, while Pull Planning helps refine critical phases
together with the people executing the work.
In practice, the best results are achieved by combining both. Gantt works
as the master schedule, Pull Planning refines the work phases and Last Planner guides
weekly execution.
A Working Combination
Gantt shows the big picture. Pull Planning builds a shared execution plan.
Last Planner ensures that weekly commitments are kept.
Summary
Pull Planning is a practical way to improve construction project scheduling.
It brings participants into planning, makes dependencies visible and helps
identify production constraints before they cause delays.
When Pull Planning is combined with the Gantt schedule and Last Planner weekly planning,
the site gets both long-term direction and a realistic way to manage
daily production.
Would You Like to Make Pull Planning Easier?
L-Planner helps combine Gantt scheduling, Pull Planning,
Last Planner weekly planning and task management in the same
browser-based system.
Book a Demo