The Dye Lot Forces You To Buy The Whole Job Up Front
One purchase order has to cover the entire floor, and it gets placed before the GC has a slab. On a $180K scope that's $70-90K out the door months ahead of any pay application.
A plumber buys fixtures in phases and nothing about the third order looks different from the first, so he can pace his buying against his cash. Tile has no phase option, because the material is the job's appearance, so the buy is all at once and it happens months ahead of installation. Natural stone tightens it further: a slab bundle comes off a single block, the vein match dies with that block, and a distributor holds the bundle only 7-30 days without a deposit of roughly 50%.
The size of it
On a $180K commercial tile scope, $70-90K of material and deposits leaves the account 3-5 months before the first pay application can bring any of it back, plus warehousing or demurrage while the container waits on a building that isn't ready to receive it. If the run sells out and you underbought, the makeup order is a different shade and the fix is replacing the whole field, not the shortfall.
Ceramic and porcelain come out of the kiln in dye lots, and every run carries its own shade and its own caliber stamp for size. Two runs of the same SKU can be visibly different in color and off by 1-2mm in size, so a second order later in the job will never blend into the first. That means one purchase order for 100% of the field tile, plus 10-15% cut waste and whatever attic stock the owner wants, all from one run, before anybody sets a square foot. Imported porcelain out of Italy, Spain, or Turkey runs 8-16 weeks order to delivery, and matching trim or bullnose often runs longer because trim comes off a separate production line.
Three moves, in order
Step 01: Job cost structure
Seven cost categories and three levels of granularity, built so the estimate and the ledger use the same words.
What else costs tile and stone contractors money
The same mechanism in other trades
What tile and stone owners ask
How do i get paid for tile i had to buy months before the job started?
One purchase order has to cover the entire floor, and it gets placed before the GC has a slab. On a $180K scope that's $70-90K out the door months ahead of any pay application.
What does it cost?
On a $180K commercial tile scope, $70-90K of material and deposits leaves the account 3-5 months before the first pay application can bring any of it back, plus warehousing or demurrage while the container waits on a building that isn't ready to receive it. If the run sells out and you underbought, the makeup order is a different shade and the fix is replacing the whole field, not the shortfall.
What do I do first?
Pull your last three tile purchase orders and write the date the money left the bank next to the date the pay application covering that material got funded. Those days in between are your material float, and they belong in the job's cash plan before you sign the next contract.
What are tile and stone contractors supposed to be making?
Tile and stone runs 22% gross margin, 14% 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%.
Which part of the system fixes it?
The step is number 01, job cost structure. Seven cost categories and three levels of granularity, built so the estimate and the ledger use the same words. It comes from chapter 1 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.