Constructability Reviews Eliminate Waste!
The 8 Wastes and How Constructability Reviews Fight Them
1. Defects ❌
- What it is: Errors in design or construction that require rework.
- Constructability Solution: A review catches design flaws, material clashes, or impractical details before construction even starts. This prevents costly rework and ensures a higher-quality final product.
2. Overproduction 📈
- What it is: Producing more than needed, leading to excess inventory and wasted resources.
- Constructability Solution: By streamlining the design and material list, a review ensures you only order what’s necessary, avoiding surplus materials and their associated costs and storage.
3. Waiting ⏳
- What it is: Idle time for workers or equipment due to delays.
- Constructability Solution: Reviews identify long-lead time items or complex sequences that could cause delays. By addressing these upfront, you create a smoother, more efficient workflow on-site.
4. Non-Utilized Talent 🧠
- What it is: Failing to use the skills and knowledge of your team.
- Constructability Solution: This is the core of a review! It brings together the expertise of everyone from field supervisors to subcontractors, harnessing their practical knowledge to improve the project.
5. Transportation 🚚
- What it is: Unnecessary movement of materials, tools, or equipment.
- Constructability Solution: A review helps optimize site layout and logistics. By planning for efficient material delivery and placement, it minimizes waste from excess transportation.
6. Inventory 📦
- What it is: Excess materials, tools, or equipment stored on-site.
- Constructability Solution: By creating a more accurate and efficient materials list, a review helps prevent over-ordering and the need for large, costly on-site storage.
7. Motion 🏃♂️
- What it is: Unnecessary movement of people.
- Constructability Solution: An optimized design reduces complex, awkward, or unsafe movements for workers, improving safety and efficiency.
8. Extra-Processing 📝
- What it is: Any extra work or steps that don’t add value.
- Constructability Solution: By creating a clear, easy-to-understand design from the start, a review eliminates the need for numerous RFIs (Requests for Information), change orders, or complex on-site problem-solving. It’s about getting the design right the first time.
The Big Picture
A constructability review isn’t just a step in the process; it’s a strategic tool for project efficiency. By tackling the 8 wastes of lean, it transforms the project from a reactive series of fixes into a proactive, well-oiled machine. It’s the ultimate example of how a small investment in pre-planning can lead to massive savings in time, money, and resources.