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.

all actuals agreements american-contractor apprenticeship approvals assemblies award baseline bd bid bidding billing breaks budget california calls capacity certified-payroll change-event change-management change-order civil-code classifications closeout co collections companies compliance contacts contingency contract cost-control crew crm cslb csv daily-log das-140 das-142 definitions dir directory dispatch documentation earned-value estimate estimates estimating evm feedback-loop field forecast fwo glossary import invoicing job job-cost jobs labor labor-code labor-rates lcptracker lessons-learned license lien lien-waiver lien-waivers maintenance margin markup mechanics-lien migration ntp opportunities organization paga pay-app payment payroll pco pdf photos pipeline pm pmi preliminary-notice prevailing-wage pricing productivity project project-controls proposal proposals public-works pursuit pursuits pwc-100 radar recovery recurring registration relationships renewal retainage rfi roster sales-tax schedule scheduling service setup signature single-pipeline site-report sov stop-notice substantial-completion t-and-m techs terminology timecards tm-tickets wage-determination warranty work-orders workers

Retainage release — when, how much, and what to chase

Standard 5–10% withholding through the project, partial release at substantial completion, final release after closeout. The clocks and triggers contractors miss.

billingcollectionscloseoutretainagesubstantial-completion

The STrOp glossary — what we call things, and why

Construction has never agreed on its words — the same term means three different things depending on who's talking. Here's the one name STrOp uses for each thing, and the words we deliberately split.

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See STrOp in action

Single-pipeline operations for California specialty contractors — bid through warranty.

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