During tender stage, time is often at a premium and costs for vital plant requirements can often be assessed recklessly. On some projects, these may be on site for a considerable time, and can easily cost £1000 per week for hire alone. I have produced a simple spreadsheet which ultimately identifies the number of hoists required to perform identified duties over a specific programme period. This is an invaluable exercise which requires only entry of programme data, hoist spec, cycle and loading times and quantities of materials being used.