Manage provisional sums and allowances
Handle the parts of a bill the design cannot yet fix - provisional sums, prime cost sums and allowances - kept separate from measured work so each one has an owner and can be drawn down cleanly.
Cách hoạt động, từng bước một
4 bước xuyên suốt nền tảng - bạn làm gì ở mỗi bước và vì sao điều đó quan trọng.
Find what cannot be fixed yet
Dự trù & dự phòngGo through the scope and list every element the design cannot yet price firmly: undesigned finishes, a specialist package still out to market, statutory connections, a prime cost item.
Tại sao: Naming the soft spots up front is what stops them being priced twice or missed entirely. It also tells the client exactly which parts of the number are still to be firmed up.
Set the type and the basis
Dự trù & dự phòngMark each one as a defined or undefined provisional sum, a prime cost sum or an allowance, then record the basis behind the figure and who owns firming it up.
Tại sao: A defined sum carries programme and preliminaries; an undefined one does not. Getting the type right now decides whether you can claim time and cost when it is finally instructed.
Carry them into the bill
Bảng khối lượngBring the sums into the bill in their own section, clearly separate from measured work, so the tender total shows firm price and provisional money apart.
Tại sao: Kept separate, the sums can be expended and adjusted through the job without disturbing the measured rates. Buried in the rates they become impossible to track or hand back.
Check for double counting
Xác thựcValidate that nothing sits in both a rate and a provisional sum, that every sum has an owner, and that the totals reconcile before the bill goes out.
Tại sao: Double counting a package is an easy way to price yourself out of a job; missing it is an easy way to lose money. A quick validation pass closes both traps at once.