Raft Floors

Raft floors are what we specialize in – we have a 20 year history of designing and building Raft foundations in New Zealand.

Our experience and combined knowledge of designing and building raft floors is unmatched in the New Zealand market. With our in-house specialist building, quantity surveying and engineering skills, we are confident in creating the best foundation solution for each project we undertake.

Raft Systems

Rib Raft, Super Slab, Vision are all types of raft slab systems.They are variations of a two-way spanning slab which uses polystyrene pods to reduce mass which also has the advantage of insulating the foundation and reducing cost.

As a result of constant feedback from our building and quantity surveying team our raft floor designs are a refinement of all the current systems on the market. Subsequently our standard raft floor designs are simple and economical to build.

Customised Specifications

But we don’t shy away when projects are complicated – we excel. We maintain our focus on delivering engineered solutions that are elegant and still simple and practical to build. And our deep understanding of cost directly translates to faster and more predictable build times.

Quality Control

Raft floors are highly engineered to perform a simple but essential function - and they come in a variety of requirements and complexity. We understand the issues involved and care about the details. Every project is carefully considered and all engineering plans are reviewed by our build and quantity surveying team before being sent back to the client.


  • Flat sites
  • Steep sites
  • Soft ground
  • Bridging Drains
  • Retaining
  • Insulation
  • Expansive soils
  • TC1,2and 3 Land