The Plate Quote Expired Before You Won the Job
You bid the tank in March, won it in July, and bought the plate in August against a mill quote that expired in April.
Most trades buy material in weeks, in lots small enough that a price move is noise. On an API 650 or AWWA D100 tank, plate is 30 to 45 percent of contract value and it all buys in one heat lot at one moment. SteelBenchmarker had USA standard plate at $1,520 per tonne in August 2026 against an $860 low in January 2025, so the swing across a normal municipal award cycle is bigger than the margin on the job.
The size of it
On a $2.5M tank with a $900K plate package, a 25 percent move between bid and buyout is $225K, roughly the entire estimated gross profit on the job before a single course goes up.
The plate package is the largest single line on a field-erected tank, and you priced it off a mill quote that lives 15 to 30 days. The award cycle that follows belongs to somebody else: bid opening, engineer's recommendation, council approval, funding release, then bond and insurance. By the time notice to proceed comes through, you're 60 to 120 days past that quote, and hard-bid public work won't accept escalation language. You carry the entire plate position uncovered across a window you don't control.
Three moves, in order
Step 04: Estimating system
The estimate maps one to one onto the job cost codes, so variance means something the day it appears.
What else costs tank and vessel contractors money
The same mechanism in other trades
What tank and vessel owners ask
Steel plate price went up between tank bid and buyout?
You bid the tank in March, won it in July, and bought the plate in August against a mill quote that expired in April.
What does it cost?
On a $2.5M tank with a $900K plate package, a 25 percent move between bid and buyout is $225K, roughly the entire estimated gross profit on the job before a single course goes up.
What do I do first?
Pull your last three tank bids and write three dates side by side: bid date, mill quote expiration, and buyout date. The distance in days between the first and the last is your exposure window.
What are tank and vessel contractors supposed to be making?
Tank and vessel runs 23% gross margin, 15% overhead and 8% net profit before taxes at $1M–$5M. The all-trade average is 7%, so this trade sits 1 points above it. The CFOS target is 10.5%.
Which part of the system fixes it?
The step is number 04, estimating system. The estimate maps one to one onto the job cost codes, so variance means something the day it appears. It comes from chapter 4 of CONTROL: The Construction Financial Operating System.
