Fewer Starts, More Finishes — Goldratt's Rules of Flow
- Mar 23
- 3 min read
Updated: Mar 25
ISSUE 2 · MARCH 26, 2026
Everyone on the project is busy. The parking lot is full at 6 AM. Every trade has crews on site. And somehow, the schedule is slipping. That disconnect — maximum activity, minimum progress — is the problem Efrat Goldratt-Ashlag set out to explain in Goldratt’s Rules of Flow (2021), a book that takes her father Eliyahu Goldratt’s Theory of Constraints and distills it into a set of rules for how work should move through any system, including a construction project.
The rules are deceptively simple. Don’t start what you can’t finish. Make sure you have everything you need before you begin. Prioritize ruthlessly. Synchronize handoffs. Find what’s causing rework and fix it at the root. And stop optimizing individual trades at the expense of the whole project. If you’ve been in the field long enough, none of these sound revolutionary — but Goldratt-Ashlag’s contribution is showing why teams that know these things still violate them every week, and what it costs.
Two of these rules deserve special attention because they’re where most projects lose the most time.
Rule 1: Control your WIP. WIP is work in progress — the number of activities you’ve released to the field at the same time. The instinct in construction is to start everything as soon as possible. If a zone is technically available, put a crew in it. If a trade is mobilized, put them to work. But Goldratt-Ashlag’s point is that releasing more work than the system can absorb doesn’t speed things up — it slows everything down. When five trades are stacked in the same zone, nobody moves at full speed. Crews wait on lifts, trip over each other’s material, and lose time to coordination that wouldn’t be necessary if fewer people were in the space. The rule says: limit the work you release to what can actually flow through without stopping. Fewer starts, more finishes.
Rule 2: Verify full-kit before you start. Full-kit means every prerequisite for an activity is confirmed before you release it to the field. Materials on site. Submittals approved. RFI responses back. Predecessor work inspected and accepted. When a crew starts without full-kit, they’re not starting — they’re staging a stop. They mobilize, hit the missing piece, and demobilize. You’ve burned a day to accomplish nothing. The fix is a harder conversation before the work starts: is this activity truly ready, or are we hoping the last piece shows up? If it’s not ready, hold it. Protect the flow for work that is.
The practical move: before your next pull-planning session, try one thing differently. Instead of asking each trade “when can you start?” ask “what do you need in hand before your crew can work uninterrupted for a full week?” That’s the full-kit question. If anything in the answer isn’t confirmed, the activity isn’t ready to release. You’ll start fewer things — and finish more of them.
Something to consider: Try this before your next subcontractor coordination meeting. Take your three-week lookahead and paste it into an AI tool. Ask it to generate a full-kit checklist for each activity — materials, submittals, RFI responses, inspections, predecessor work. Then print it out and walk through it with your subs. You’ll be surprised how quickly the conversation shifts from “when can you start?” to “here’s what’s actually missing.” It takes about fifteen minutes to set up, and it gives you a shared document that holds everyone — including your own team — accountable to the same readiness standard.
Steel Market Snapshot
Late March 2026
HOT-ROLLED COIL $1,057/ton ▲ 30%+ over 12 months | PLATE $1,100–1,200/ton ▲ $160 since Nov ’25 |
BEAMS +$120/ton ▲ in early ’26 · 10–12 wk lead | REBAR +$60/ton ▲ since Nov ’25 · 4–6 wk lead |
Supply-driven rally continues. Prices remain elevated across all major product groups, with mills holding firm and lead times at multi-year highs. This is a supply-constrained market, not a demand-driven one.
What to watch: Section 232 tariffs hold at 50%. Mill capacity utilization is below 80%, suggesting deliberate production discipline. For precon teams pricing upcoming bids, the environment favors locking in early.
Want deeper market analysis? Our Market Informer tracks pricing trends, mill announcements, and lead times so you can make better buyout decisions. Visit the Market Informer →
Sources
1. Goldratt-Ashlag, Efrat. Goldratt’s Rules of Flow. North River Press, 2021.
2. Farwest Steel. "Market Overview — Early March 2026."
3. Steel Warehouse. "Market Update: March 2026."
5. Steel Industry News. "Community Poll: February–March 2026 Results."
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