It is far easier to measure
areas in metres, but for customers who are more comfortable with
feet and inches here are some examples to help you work it out:-
1. METRES
Area measurements: 18.750m x 22.430m
Simply multiply the two figures together using
a calculator and the result is 420 square metres (m2)
If you intended sowing rate is 50grammes/m2 then multiply
the area (420m2) by the sowing rate (0.050). The result
is 21kgs of seed.
Alternatively, if you have the equipment to sow more
accurately then the reduced rate (of 35grammes/m2) can be utilized.
As before multiply the area (420m2) , but this time by 0.035.
The result is 14.7kgs of seed.
Wild flower/grass meadow mixtures have much lower sowing
rates, i.e. around 5gms/m2.
The calculation is 420m2 x 0.005
The result is 2.1kg of seed
With turf , it is even simpler as each roll of turf covers
an area of 1m2, so the calculation is 420 x 1 = 420m2
of turf.
2. IMPERIAL
Taking the same area as above but measured in feet and inches
we need to do a few more calculations initially.
a) To convert 61’ – 6” to metres multiply
61.5 x 0.305 and the result is 18.755 metres. You will
notice that we needed to convert the 61feet and 6 inches into
a metric equivalent , i.e. 61.5 feet
To convert the other dimension 73’-6” we do exactly
the same again, i.e. 73.5 x 0.305
= 22.420 metres
This gives us an area of 420m2
Return to the METRIC workings out and proceed as though
you had started out in metres.
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