4x4 Risk Matrix Template

What is a 4x4 Risk Matrix?

A 4x4 risk matrix is a grid with four likelihood levels down one side and four consequence levels across the top, giving sixteen cells. Each cell holds a risk level, usually Low, Medium, High or Extreme, and a risk scored on both axes takes its level from where the two meet.

It is also written as a 4 x 4 risk matrix or a 4x4 risk assessment matrix. The likelihood levels are commonly Rare, Unlikely, Likely and Almost certain, and the consequence levels Minor, Moderate, Major and Severe.

Four levels means there is no middle. An assessor who is unsure has to pick Unlikely or Likely, and that choice is information. On a 5x5 the same person picks the centre on both axes and nobody learns anything. Where your team needs finer resolution than four levels allow, use a 5x5 risk matrix instead.

What's Included in This 4x4 Risk Matrix Template

Seven sheets, with the grid feeding a register that reads its level straight off it.

Every cell is editable, so the levels shipped with the file are a starting point rather than a standard. Moving one boundary moves every risk sitting on it.

4x4 Risk Matrix Example

Here is an example of a 4x4 risk matrix, showing the grid and the count of risks sitting in each cell.

How to Use This 4x4 Risk Matrix Template in Excel

Agree the scales before anyone scores anything. That single step is what makes a score defensible when someone questions it later.

1. Set the project, assessor, assessment date and next review date on the Cover.
2. Pick the scoring convention, untreated or treated, and hold to it across every risk.
3. Define the scales in cost, time and safety terms, so two people scoring the same risk Likely mean the same thing.
4. Argue the grid, adjust the level in any cell to suit your project, then agree it once and leave it alone.
5. List each risk on the Risks sheet, and score likelihood and consequence from 1 to 4.
6. Let the level read off the grid rather than typing it, since a typed level and a scored level will disagree eventually.
7. Score the risk as it is today, with the controls actually in place rather than the ones you intend to add.
8. Where two assessors disagree by a level, resolve it in the room and record which definition each was reading.
9. Read the count grid rather than only the colors, since a cluster in one cell usually means the scale is too coarse there.
10. Check the Summary, which flags when the review date has passed.

Never average two scores. If one person says Likely and another says Unlikely, that gap is the most useful thing the exercise has produced.

A spreadsheet cannot stop someone editing the grid mid-project. Where that matters, construction risk management software holds the 4x4 matrix at system level, so every risk on every project scores against the same one.

Related Articles and Templates

Explore these resources for risk matrices, risk assessment, scoring, and mitigation planning:

• Risk Management Plan Template
• Risk Assessment Template
• Risk Register Template
• Construction Risk Matrix: Setup, Ratings, & Use Cases
• How to Create a Risk Assessment Matrix for Your Capital Projects
• What is the Probability Impact Matrix?
• Construction Risk Management Plan
• Construction Risk Management Guide