The Rotary Laser kit shown is available for hire to CA registered Croquet Clubs at the rate of £20 per week plus courier and insurance of about £18 each way.
To measure a full sized lawn on a 1 metre grid is 891 measurements. If you input the data on a spreadsheet, I can process it for you and provide information a variety of ways. Some examples are given below. The processing fee is usually around £70.
The maps and data shown are from actual measurements of my own croquet lawn. The coloured map shows 891 squares, each represents one square metre and the colours are in 7mm steps.
The table (above) shows that the amount of material needed to fill the low areas up to the level of the highest point would be around 45 cu metres. This is is about 74 tonnes of normal root zone (1.66 tonnes per cubic metre). That is a huge amount of material and would cost around £3500.
The other information given by the table is based on the average of the highs and lows. This shows that the highest point above average is 51mm and the lowest is -45mm. If the high points were scraped off to the average level, the material produced would fill the low areas with a small amount left over. That would be a difficult operation on an existing lawn with full grass coverage. So I chose to fill the low areas up to the average level and, as shown in the third chart, I used just under 6 cubic metres (10 tonnes)
The output information is customised for each situation so that it provides the information needed to achieve the best result.
If you want to hire the kit, please contact me well in advance to ensure availability.