Skip to content

Unit: Inspecting and testing subfloors

LMFFL2004A: Moisture test timber and concrete floors
LMFFL3101A: Inspect sub-floors

Section 1: Subfloor systems

Image for slide 1
Audio for slide 1 (mp3 |6|KB)
A subfloor is the structural layer of flooring in a building. It needs to be strong enough to support the walls and any other structural elements built on top of it.

Sometimes the structural floor is used as the finished floor surface in the building - such as with polished concrete or exposed particleboard sheets.

hearing icon
Image for slide 2
Audio for slide 2 (mp3 |6|KB)
But generally it's covered with a flooring product that suits the purpose of that part of the building and meets the client's needs for durability and appearance.

In this section we'll discuss the main types of subfloor systems and the materials used to construct them.

hearing icon

Completing this section

Audio 3 (mp3 |6|KB)

The assignment for this section is designed to test your knowledge of different types of subfloors and the materials they're made from.

Have a look at the Assignment now to see what you'll need to do to complete it. You'll find the link in the menu bar.

Also in the menu bar are links to the lessons for this section:

  • Subfloor terminology

  • Concrete slab subfloors

  • Timber framed subfloors

  • Structural sheet flooring

  • Underlay board products.

These lessons will provide you with background information that will help you with the assignment.

The Just for fun exercise is a self-check interactive exercise on some basic building terms. It will also give you some clues to one of the assignment questions.

hearing icon