202 Floor boarding and calculations

Principles of building construction, information and communication.

Floor boarding and calculations.

Aim: Introduce learners to floor boarding and calculations.
Objectives:
Calculate Area
Calculate Perimeter
Calculate Volume
Calculate Quantity

​Flooring is calculated in m2.
To calculate the area, the formula is length x width.
Sheet flooring is approximately 900mm wide x 1800mm long = approximately 1.62m2.

For example:

If you have a room 4.3m x 6.4m, the area = 27.53m2.

Now divide the room floor area by the sheet flooring area. 27.53m2 / 1.62m2 = 16.9 = 17 sheets of flooring.

​Calculating for sheet flooring

​

​6m

​4m

Calculate the area of this shape A

Multiple Choice

The area of the shape A is:

• 2.4m2

• .24m3

• 24m2

• 4.2mm2

​

​

​6m

4000mm

​2m

4m

Calculate the area of this shape B

Multiple Choice

What is the area of shape B ?

• 48m2

• 0.48mm2

• 48m3

• 0.048mm2

​CALCULATE: PERIMETER

​

​

​6m

4000mm

​2m

4m

Calculate the Perimeter of this shape C

Multiple Choice

What is the perimeter of shape C?

• 32 square metres (M2)

• 32 linear metres

  (LM)

• 32 cubic metres

  (M3)

• 32mm2 Linear metres

​How many 120mm's will fit into side A?

​Side A = 6m

Multiple Choice

How many 120mm's will fit into 6m side A?

• 50

• 5

• 25

• 100

​

​Side A = 6m

Floor Board C

Side B = 10m

​How long does the Floor Board above need to be to go from end to end?

Multiple Choice

​How long does the Floor Board C need to be, to go from end to end?

• 10mm

• 0.100mm

• 10m

• 10m2

​

​Side A = 6m

Floor Board C

Side B = 10m

​How long does the Floor Board above need to be to go from end to end?

Multiple Choice

If I had 20 lengths of Floor Board C How many linear metres would I have?

• 20 linear metres

• 200 linear metres

• 2000 linear metres

• 200 linear millimetres

​Flooring is calculated in m2.
To calculate the area, the formula is length x width.
Sheet flooring is approximately 900mm wide x 1800mm long = approximately 1.62m2.

For example:

If you have a room 6.3m x 8.4m, What is the area?

Now divide the room floor area by the sheet flooring area. 27.53m2 / 1.62m2 = 16.9 = 17 sheets of flooring.

​Calculating for sheet flooring

Multiple Choice

If you have a room 6.3m x 8.4m, what is the area?

• 38.38m2

• 63m2

• 17.28m2

• 52.92m2

​The formula for floor boards is similar to that for sheet flooring.

Floor board widths vary depending on the supplier, but are generally 150mm wide x 5m long, which is the size we will use.

Flooring is laid across the joists (the length of the room).

If you have a room 4.3m (L) x 6.4 (W)
The area = 27.53m2. = 4.3m / 150mm = 28.6 = 28.6 x 6.4 = 183.5m = 183.5m / 5m = 36.693 lengths of floor board = 37 lengths of floor boards at 5m long.

​Calculating for floor boards

​Calculating for wastage.

Wastage is generally calculated at 15%.

This ensures that there is sufficient flooring, as in some circumstances flooring has to be cut and wastage is inevitable.

We will calculate for the previous two flooring calculations.

Sheet flooring: 27.53m2 / 1.62m2 = 16.9 = 17 sheets of flooring 17 x 15% = 2.55 = 3 sheets 17 + 3 = 20 sheets

Floor boards: 183.5m / 5m = 36.693 = 37 lengths of floor board 37 x 15% = 5.55 = 6 lengths 37 + 6 = 43 lengths

Well done, you have completed this session.
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