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Lesson Summary

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Lesson Summary

19.11.07

M. S. Martin 21/11/07

- Two main types of construction
- Platform flooring &
- Cut in Floors (typically strip flooring is used)
- Click mouse again to look at the sketches opposite & review your notes from P20

Cut in floors

Platform Floors

Face fixed or secret nailed

Laying & Clamping – click mouse to bring in each point

Select the longest run of flooring

String a line through middle of building parallel to outside walls

Lay a run of boards along this line

Note: in small rooms you might start from one wall and work towards the other

Cut and lay say 4 runs of board on each side of centre

Cramp & fix

Continue laying & cramping boards in sections of 6 to 8 board maximum

When you get close to the wall you will need to use an alternative to floor clamps, timber or a chisel

Undercut but joints or

Or use end matched boards

- Types
- Structural Grade particle board
- Plywood
- Compressed cement sheet

- Sheet sizes vary in thickness which effects joist span 450 or 600 centres

Review your workbook calc’s

Look at the sketch below:

When working out quantities of floor boards to suit a particular room in a house, we calculate the amount of boards using effective cover per square metre of floor area, see the simple description below.

1.0 x 1.0 = 1.0m²

= 1.0m = 1000mm

For the purpose of the example, let’s say our floor boards have an effective cover of 86mm, therefore:

1000 or 1.000=11.627

86 .086

Which means you can lay 11.627 lineal metres of floor boards per / m² of floor area

1.0m

1.0m

- Bearer & Joist exercise in basement

- Demonstration of flooring clamps & strip flooring
- Explanation of different set out for sheet flooring & strip.