Your contract holds two commodities and hedges neither
You bid it in October off a quote good for thirty days, and you're buying board and studs in March on two markets that move separately.
A framer watches lumber, a steel erector watches steel, and each of them has one number to follow. You have two, on unrelated clocks, inside one scope, priced at bid and purchased at buyout months later. The one edge you get is that gypsum increases come by letter with a date printed on them, which is usable information if somebody in your office is reading the yard's mail.
The size of it
A 10% move on a $600k job with $220k of material is $22k. Work bid at 12% gross loses most of its margin to that, before a single sheet goes up.
A drywall contract holds two unhedged commodity positions on separate cycles, and hard-bid work with no escalation clause leaves both of them with you. Gypsum board doesn't trade on a spot market: manufacturers move price in announced steps, so an increase reaches you as a letter with an effective date, and the yard's quote holds thirty days at best. Steel studs ride the steel mill index, a completely different cycle that can be running the other direction the same quarter. Gypsum products PPI moved from 475.1 in May 2026 to 481.6 in July 2026, about 1.4% in two months, while steel mill products moved from 331.4 in March 2026 to 374.2 in July 2026, roughly 13% in four months. Board and studs together are 30% to 40% of the contract, so those two lines decide whether the job worked.
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 drywall contractors money
The same mechanism in other trades
What drywall owners ask
How to protect a drywall bid from board and stud price increases?
You bid it in October off a quote good for thirty days, and you're buying board and studs in March on two markets that move separately.
What does it cost?
A 10% move on a $600k job with $220k of material is $22k. Work bid at 12% gross loses most of its margin to that, before a single sheet goes up.
What do I do first?
Print the quote expiration date and any announced increase date on the bid cover sheet, and price anything buying out past that window with a stated escalation line.
What are drywall contractors supposed to be making?
Drywall runs 19% gross margin, 13% overhead and 6% net profit before taxes at $1M–$5M. The all-trade average is 7%, so this trade is 1 point below it. The CFOS target is 10%.
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.
Everything on this page is something you can install yourself, andCONTROL is the order to do it in. If you would rather buy the finished result, SPM The Construction CFO does this work for drywall contractors as a service. It is a separate firm, Sulphur Prairie Management, LLC, run by the same author.
Wrote CONTROL, the 8 step system behind these figures. More about the author.