What a look-ahead schedule is
A look-ahead is a rolling window of the next two to three weeks of work, extracted from the master schedule and updated every week. It's deliberately short. You're not trying to predict week fourteen. You're making sure the next fifteen working days are locked, resourced, and conflict-free.
Three weeks is the common window because it maps to how the job really moves. Week one is happening now and should be firm. Week two is being confirmed, with subs booked and materials ordered. Week three is being set up, with decisions chased and deliveries scheduled. Each week, the window rolls forward and you refresh it.
Why three weeks and not the whole job
The master schedule answers "when does this job finish?" The look-ahead answers "what has to happen next, and is everything in place for it?" Trying to run the job off the full master schedule fails because it's too far out to be accurate and too big to act on. The look-ahead is small enough that you can actually work it: confirm every sub, verify every material delivery, and resolve every conflict before it costs you a standby day.
What goes in it
Keep it lean. For each task in the window:
- What the task is and which trade or sub owns it
- Start and finish days within the window
- What it depends on, whether that's the inspection, the delivery, or the decision
- Status: confirmed, at risk, or blocked
- The constraint if it's blocked. This is the gold.
That last column is the point of the whole exercise. A look-ahead surfaces constraints early: the vanity that hasn't shipped, the selection the homeowner hasn't made, the inspection that isn't booked. Catch those two weeks out and they're a phone call. Catch them the morning the tile setter shows up and they're a wasted day you're paying for.
How to run the weekly cycle
The look-ahead is a habit, not a document. Once a week, same day and same time, you:
- Roll the window forward one week and pull the new week from your master schedule.
- Confirm week one and two with the subs and suppliers involved. A quick call or message: "You're still on for Tuesday?"
- Set up week three by chasing decisions, placing orders, and booking inspections.
- Flag every constraint and assign someone to clear it.
- Update the master schedule with anything that actually moved.
That last step matters. The look-ahead feeds reality back into the master plan so your finish date stays honest.
Look-ahead and trade sequencing
The look-ahead is where sequencing gets real. It's one thing to know the standard order of trades in theory; it's another to see that this week's plan has the painter and the flooring installer scheduled on top of each other. A good look-ahead catches those collisions before they happen. If you're shaky on the underlying order, review how to sequence trades and use the look-ahead to enforce it week by week.
The look-ahead is downstream of a real schedule
A look-ahead only works if there's a master schedule behind it to pull from. If you haven't built one, start there with how to build a construction schedule, then use the look-ahead as the operating layer on top of it.
Keep it connected to the job
The reason to run a look-ahead inside your project management system rather than a standalone whiteboard is that the near-term plan touches everything else: the subs you're paying, the materials you're buying, the milestone you're about to bill. When the look-ahead lives with the rest of the construction project management workflow, a slipped task doesn't just move a bar on a chart; it flags the payment and cost impact too.
TradesMetrics keeps the schedule, the subs, and the milestones on one job, so your weekly look-ahead pulls straight from the plan and pushes changes right back to the budget. See how the running plan stays tied to the money.