Free tool · high-rise structure
Will that floor cycle actually hold?
A tower is sold on a cycle. Six days a floor, and the whole programme, the crane hire and the finishing trades behind it are built on that number holding. This adds up what the deck actually takes, tells you which activity is busting the target, and gives you the topping-out date that falls out of it.
Questions
Where does cycle time actually get won?
In the overlap, almost always. Very few crews get faster at the individual activities; the cycle comes down when reinforcement starts before formwork is complete across the whole deck, when services follow the reo bay by bay, and when the pour is split. That is what the overlap column is for.
Why is my cycle longer than the sum of the activities?
It should not be — if it is, check you have not entered overlap as a negative. A cycle can exceed the sum of activities in real life because of waiting: crane availability, concrete supply, inspections and weather. This tool does not model waiting, so treat its answer as the best case.
Does it account for the crane?
No. Crane availability is one of the most common real constraints on a deck cycle and it needs its own analysis. If the crane cannot service the deck at the rate this cycle assumes, the cycle will not hold no matter what the activity durations say.
What about curing and stripping time?
Include it as an activity with its real duration. Early stripping usually needs an engineer’s agreement based on strength, not on days, so the number you enter should be the one your engineer has accepted.
Is anything uploaded?
No. It stays in your browser on your device.
Related free tools
One cycle. Twenty-eight floors of it.
A cycle holds when every gate on every deck closes on time — reo signed, services in, survey done, engineer released. The paid system runs those gates automatically off the QR band on the documents, so a slipping cycle shows up on floor three, not floor eleven.
