Floor joists

What must floors be constructed to comply with according to the TRADA guidelines?

• Environmental standards

• Building regulations

• Safety protocols

• Design aesthetics

What is the name of the floor construction in the image

• Solid floor

• honeycomb sleeper wall

• Suspended

• Floating

Why is there a layer of sand binding between the hardcore and DPM

• To prevent the DPM being damaged

• To provided a flat surface

• For insulation

• Its self levelling

What is the name of the flor construction in the image

• Triple floor

• Solid floor

• Single floor

• Mono floor

How thick are joists usually?

• 30mm

• 50mm

• 70mm

• 100mm

What must be thicker to carry the load to the trimming joist?

• Bridging joists

• First joist fitted

• Trimmer joist

• Trimmed joists

What is the purpose of the trimmer joist in flooring?

• To provide aesthetic appeal

• To support the wall

• To carry the load to the trimming joist

• To connect the bridging joists

What material is the centre component of an I joists usually made from?

• Plywood

• Oriented strand board (OSB)

• Recycled timber

• Hardwood

What are laminated joists manufactured from?

• New timber

• Oriented strand board (OSB)

• Recycled timber

• Metal

What type of strutting is shown in the left image?

• Herringbone strutting

• Steel strutting

• Timber strutting

• Cross strutting