Fabrication doesn't release until the EOR approves
You pay a licensed engineer and a detailer to seal a tendon layout, then wait on somebody else's desk before a strand gets cut. The review clock belongs to the design team.
The gate is the whole point. A framer with a slow submittal can still buy studs and stage them on the deck, while a PT contractor can't, because the fabrication order is keyed to the approved layout and the plant won't cut against a drawing that hasn't cleared review. A submittal-heavy owner buys more of your engineering hours than the last one did, and nothing in a standard chart of accounts tells you which owner that was.
The size of it
Weeks of engineering and detailing cost sit on a job that has produced no pay application. Most contractors bury it in overhead, so estimating never sees what a submittal-heavy owner really costs and prices the next one the same way.
No published benchmark reference breaks this trade out on its own. CFMA reports at NAICS level, and at that level this trade rolls into a broader bucket with several others. That's why this page carries mechanisms and no margin figures. It reports inside NAICS 238110 Poured Concrete, so there's no post-tension margin figure to put in this box. The 48 trades that do publish average 7% net profit at $1M–$5M before taxes, which is the nearest reference point worth anything here.
Structural drawings on most PT slab work show design intent. Somebody still has to produce a buildable layout: tendon profiles, chair heights, anchor locations, and calculated elongations, sealed by a licensed engineer and submitted to the Engineer of Record. Fabrication doesn't release until that review comes back approved. So the job already carries engineering, detailing, and coordination hours before there's a strand to ship or a pay app to send, and the length of the wait is set by a reviewer you don't employ.
Three moves, in order
Step 03: Overhead calculation
What indirect cost really comes to at your size, and the rate your estimating template should be carrying.
What else costs post-tension contractors money
The same mechanism in other trades
What post-tension owners ask
Why can't tendons be fabricated before shop drawing approval?
You pay a licensed engineer and a detailer to seal a tendon layout, then wait on somebody else's desk before a strand gets cut. The review clock belongs to the design team.
What does it cost?
Weeks of engineering and detailing cost sit on a job that has produced no pay application. Most contractors bury it in overhead, so estimating never sees what a submittal-heavy owner really costs and prices the next one the same way.
What do I do first?
Open a PT engineering and detailing cost code on every job and charge the supplier's engineering fee, your detailer's hours, and every resubmittal round to it.
Are there published benchmarks for post-tension?
No, and this site won't print one. No published benchmark reference breaks this trade out on its own. CFMA reports at NAICS level, and at that level this trade rolls into a broader bucket with several others. That's why this page carries mechanisms and no margin figures. In the surveys it rolls into NAICS 238110 Poured Concrete, so the closest honest reference is the 48-trade table, where net profit at $1M–$5M averages 7% before taxes. Read that as the neighbourhood, and read your own job costing as the answer.
Which part of the system fixes it?
The step is number 03, overhead calculation. What indirect cost really comes to at your size, and the rate your estimating template should be carrying. It comes from chapter 3 of CONTROL: The Construction Financial Operating System.
Josh Luebker ran commercial construction projects before he ran the numbers behind them, on data centres, military bases, hospitals, and high-rises. He wrote CONTROL: The Construction Financial Operating System, which is an eight-step framework for commercial subcontractors, and it publishes on October 1, 2026. He is a master electrician who moved into the office and kept the field vocabulary.
Sulphur Prairie Operations LLC maintains the benchmark reference behind these figures. Every edition is reconciled against the newest CFMA survey release before it publishes here. Where a figure changes between editions, the older edition keeps its year in the title so a citation to it stays correct.