Price the preliminaries and general conditions
Price the cost of running the job itself - site staff, welfare, plant, scaffolding and insurances - split into time-related and fixed and driven by the programme, then carry it into the bill.
Come funziona, passo dopo passo
4 passi attraverso la piattaforma - cosa fare a ciascuno e perché conta.
List the prelims scope
Oneri di cantiereBuild the list of everything it takes to run the site: management and supervision, welfare and cabins, temporary services, common plant, scaffolding, security, insurances and bonds.
Perché: The items you forget in prelims are the ones you fund out of profit. A complete checklist read against the contract is the difference between a covered site and a leaking one.
Split time-related from fixed
Oneri di cantiereMark each item as time-related or fixed, then price the time-related ones per week against the programme duration and the fixed ones as one-off set-up and removal.
Perché: Splitting them this way is what lets prelims flex if the programme moves. If the job runs four weeks late, you can show exactly what the extra time costs instead of guessing.
Check the resources roll up
Riepilogo risorseLook at the staff, plant and cabins the prelims imply in the resource summary and sanity check the headcount curve against the programme peaks.
Perché: A prelims price that needs three site managers in a quiet month is a warning. Seeing the resource curve catches a double count or a gap before it reaches the tender total.
Carry it into the bill
Computo metrico estimativoBring the prelims total into the bill as its own section, kept separate from measured work, and read it back as a percentage of the works value.
Perché: Keeping prelims visible as their own line lets a reviewer benchmark them at a glance. Burying them in the rates hides the one number a client always wants to test.