Construction Manpower Tracking: How to Track Headcount and Hours by Sub
Construction manpower tracking means recording, every day, how many workers each subcontractor and the general contractor had on site, by trade or classification, and the hours they worked, then comparing those numbers against what the schedule needs. Done consistently, it turns "the electrician is always short" into a dated record you can act on and, if needed, use in a delay or backcharge discussion.
What to track
| Field | Example | Why |
|---|---|---|
| Date | Tue | Basis for trends |
| Company | Northline Electric | Accountability by sub |
| Trade or classification | Journeyman, apprentice | Cost and payroll checks |
| Headcount | 6 | Staffing vs plan |
| Hours | 48 | Actual labor |
| Area | Level 2 east | Where effort went |
| Planned headcount | 8 | Variance |
| Source | Foreman report, super walk | Reliability |
Where the numbers come from
- Foreman daily reports: headcount and hours by classification. The most complete source.
- Superintendent walk: a count by company mid-morning. Good for verifying.
- Sign-in sheets or badge systems: headcount, sometimes time in and out.
- Pre-task plan signatures: a useful cross-check on who was on site.
When sources disagree, record both and note it. A sub reporting 8 when the super counted 5 is something to address quickly.
Planned vs. actual
Manpower data is most useful compared to a plan. Get planned manpower by week from each sub at the start of each phase, or derive it from the schedule's resource loading.
| Week | Company | Planned avg | Actual avg | Variance |
|---|---|---|---|---|
| 1 | Northline Electric | 8 | 7.4 | -0.6 |
| 2 | Northline Electric | 10 | 5.8 | -4.2 |
| 3 | Northline Electric | 10 | 6.2 | -3.8 |
Two weeks at 60% of plan is a conversation, documented with dates, not an impression.
Using manpower data well
Manpower requests
Write to the sub with the numbers: "Your planned crew for weeks 2 and 3 was 10. Daily reports show an average of 5.8 and 6.2. Level 2 rough-in is now 6 days behind the lookahead. Please confirm crew size for next week by Friday." Facts move faster than frustration.
Delay analysis
Manpower records help show whether a delay came from understaffing or from a constraint such as a late RFI. See daily reports for delay claims.
Pay apps and T&M
Compare billed percentage complete against labor hours to catch front-loaded billing. Match T&M tickets against daily hours for that day.
Public projects
On Davis-Bacon and state prevailing wage jobs, daily headcount and classification records give you a cross-check against subs' certified payrolls. The U.S. Department of Labor requires covered contractors and subcontractors to submit weekly certified payroll. Source: https://www.dol.gov/agencies/whd/forms/wh347
A simple manpower log routine
- Each foreman texts or submits headcount and hours by end of shift.
- The super does a mid-morning count by company.
- Discrepancies are flagged the same day.
- Weekly, compare actual averages to the plan by company.
- Share variances at the weekly sub meeting.
Mistakes to avoid
- Recording only general contractor crews
- Headcount without hours
- Totals without company breakdown
- No planned number to compare to
- Collecting the data and never looking at it
Manpower tracking on a multi-sub job: a worked example
Say you are four weeks into a 14-month medical office job with nine subs on site. Here is how the numbers become useful.
- Daily: each foreman reports headcount and hours. The superintendent's mid-morning walk counts by company. Two discrepancies show up on Tuesday: Apex Fire reported 5, the walk counted 3. The super texts the Apex foreman and learns two workers left at 9 AM for another job.
- Weekly: the PM compares averages to plan. Mechanical is at plan. Electrical is at 60% for the second week. Fire protection is short on two days.
- Action: the PM sends Northline a written manpower request citing the numbers and the affected lookahead activities. Apex is asked to confirm full crews for the remaining branch line work.
- Later: when Level 2 ceiling close-in slips a week, the manpower records, together with the lookahead and the daily reports, show where the time went.
Manpower reporting to owners
Many owners ask for a weekly manpower summary by trade. If your daily data is complete, this is a five-minute rollup instead of a Friday afternoon of phone calls. A simple table of company, trade, average daily headcount and total hours for the week covers what most owners want.
Track manpower and hours by sub automatically
Cascade is SMS-first field intelligence for general contractors and subcontractors: superintendents and foremen text in their day, along with their subs, and Cascade builds the daily report with manpower and hours by company. Ask "how many Northline workers did we average last week?" and get a plain-English answer. Coverage: Daily reports, manpower and hours by sub, photos, toolbox talks, pre-task plans (JHA), safety incidents and corrective actions, project + schedule planning, automatic sub reminders, analytics and plain-English answers.
Subcontractor access is free, and general contractors see 95%+ sub daily report compliance, which is what makes manpower data trustworthy. See SMS daily construction reports and why Cascade. Free onboarding and integration, a one-month pilot on the general contractor plan, no contract lock-in, and a price below Raken, Procore and ACC, guaranteed.
Frequently asked questions
What is a manpower report in construction?
A manpower report shows how many workers each company had on site, by trade or classification, and how many hours they worked, for a day or a period. It is usually part of the daily report.
How do you track manpower on a construction site?
Collect headcount and hours from each subcontractor foreman daily, verify with a superintendent walk or sign-in, record it by company and trade, and compare it to the schedule's planned manpower.
Why is manpower tracking important?
It shows whether subs are staffing the job to the schedule, supports manpower requests and delay analysis, helps check pay apps and T&M tickets, and on public work supports certified payroll cross-checks.
What is the difference between headcount and hours?
Headcount is the number of people on site. Hours are the labor actually worked. Five workers for four hours is very different from five workers for ten, so track both.