Skip to content

Unit: Planning and costing

LMFFL3001A: Plan and cost flooring technology work

Section 3: Estimating quantities

Allowing for angles

Image for slide 1
Audio for slide 1 (mp3 |6|KB)
In the last section we talked about rooms with opposing walls that aren't parallel to each other - that is, the angles in the corners are not 'square'.

Often you'll find that a room generally does have square corners, but there are also odd angles around recesses or projections. You're likely to come across them in hallways or at bay windows, or around features like fireplace hearths and staircases.

hearing icon
Image for slide 2
Audio for slide 2 (mp3 |6|KB)
In most instances, the easiest way to mark these angles on a floor covering plan is to simply show the diagonal line as the 'hypotenuse' in a triangle.

In other words, draw in the two imaginary square sides of the triangle and write up the lengths of all three sides.

hearing icon
Image for slide 3
Audio for slide 3 (mp3 |6|KB)

You can see that in the case of the bay window in this drawing, the depth of the recess is actually 600 mm, even though the angled wall itself is 848 mm long.

So if you're calculating how much sheet flooring is needed with the roll running towards the window, you'll need to allow for an extra 600 mm in length across the full width of 3600 mm.

For more information on triangular shapes and angles in general, go to the following lessons from the unit: Make measurements:

hearing icon

Learning actviity

Audio 4 (mp3 |6|KB)

Calculate the lineal metreage of sheet flooring required for the floor shown below.

You will be using a roll of 300 cm wide vinyl sheeting with an 'all-over' pattern (that is, no pattern repeats).

Show all your workings.

hearing icon