Estimating Fundamentals
Open lesson What will this job cost?
You have a drawing and a deadline. Where would you start?
scopeeconomics
Work out the fundamentals
Choose a problem. Start with a decision.
16 lessons
Estimating Fundamentals
Open lesson Is that the whole estimate?
The measured work is priced. What still needs adding?
Estimating Fundamentals
Open lesson Where does this cost belong?
A concrete crew and a site office both cost money. Do they belong in the same rate?
Rate Build-Ups
Open lesson What's inside a unit rate?
One cubic metre. Several resources. Build the connection.
Rate Build-Ups
Open lesson Build the crew rate
Four people. One output. What should the work cost per unit?
Rate Build-Ups
Open lesson How much should you order?
The drawing gives you the net quantity. The order needs to cover waste.
Rate Build-Ups
Open lesson What does the excavator cost per hour?
The hire price is only the starting point. What does it include?
Productivity
Open lesson Where did the output go?
The crew could produce more. What changes on a real workface?
Productivity
Open lesson Balance the crew
More people are on site. Why has the unit cost gone up?
Cost Modelling
Open lesson Build the estimate from the ground up
The quantities and rates look right. Is every piece of work included?
Risk & Contingency
Open lesson How much could this risk cost?
A risk has a one-in-four chance of happening. What does its allowance tell you?
Estimating Fundamentals
Open lesson Can someone follow your estimate?
Hand your estimate to a colleague. Can they retrace your decisions?
Quantity & Measurement
Open lesson Measure the concrete
The slab is drawn in metres and millimetres. How much concrete is in it?
Quantity & Measurement
Open lesson Where does this scope belong?
Two packages meet at one boundary. Who has priced the work between them?
Estimate Review
Open lesson Find the mistake
The arithmetic works. The estimate can still be wrong.
Tendering
Open lesson Make the quotes comparable
Three subcontractors priced the job. They're not pricing the same scope.