Construction Job Cost Breakdown

The anatomy of a healthy bid

Ranges vary by trade and job type — a self-performed deck looks nothing like a GC'd kitchen full of subs — but on a typical self-performed residential job, a bid that keeps the business alive breaks down roughly like this:

Two things to notice. First, the wages the customer imagines they're paying for are barely a third of the bid. Second, the last two rows — a quarter of a healthy price — correspond to nothing the customer can see on the job site. That's exactly why bids built only from visible costs come in 20–30% too low and feel "competitive" right up until year-end.

The costs bad estimates forget

• Labor burden. The 30–50% on top of wages. The single most expensive omission — calculate yours.
• Material waste and handling. The 8% extra lumber, plus the hours spent ordering, picking up, and moving it.
• Mobilization. Drive time, loading, setup and teardown. A 30-minute commute each way on a 10-day job is 10 crew-hours.
• Punch list and callbacks. Every job has one. Price it in, or work it for free.
• The estimates you don't win. If you close 1 in 3, every won job pays for two site visits and two takeoffs. That's overhead — recover it.

Cost-plus vs fixed price

This breakdown is also why cost-plus contracts feel safe and earn less: "cost plus 15%" is a 13% margin on a good day, with every efficiency gain handed back to the customer. Fixed pricing built on an honest breakdown keeps the upside of running a tight job — which is the only upside a contractor controls.