STrOp · Learn
Practical knowledge for specialty contractors
Compliance, change management, project controls, and the data discipline that compounds across bids. Written for California specialty subs — owners, PMs, estimators, and the field.
Closing the loop — warranty callbacks become next year's contingency
Most subs lose the warranty data trail because the callback lives in a different inbox than the estimate. The loop is short, the payoff is high, and the discipline is mostly about where the data lives.
How estimate pricing is calculated
Every estimate line runs the same four-step recipe — pad the quantity, extend by unit cost (tax on material only), add overhead then profit margin, round. Profit is a margin; overhead is a markup or a margin, set per estimate.
Price your first estimate — cost types, assemblies, and the bid
Build an estimate line by line — cost types, assemblies priced per square foot, labor from your agreement's loaded rate — and read the raw cost, overhead, margin, and bid price it rolls up to.
Productivity rate capture — today's timecard becomes tomorrow's bid
The estimator's productivity assumption is the single biggest source of bid variance. The fix is a feedback loop, and the loop only works if timecard data lives in the same system as the assemblies.
Your estimate is your earliest budget — not the contract value
The contract value tells you what the GC owes you. The estimate tells you what the job is supposed to cost. Confusing them is how subs miss a 30% margin compression.
See STrOp in action
Single-pipeline operations for California specialty contractors — bid through warranty.
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