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ONE PROBLEM, IN DETAIL

CURTAIN WALL AND GLAZING: THE SUBMITTAL-TO-FABRICATION CRITICAL PATH

QUICK ANSWER

Nothing can be fabricated until shop drawings are approved and field measurements confirmed. Custom curtain wall takes 16 to 24 weeks from approved shop drawings to first delivery; storefront fabrication takes 10 to 14 weeks; specialty glass 10 to 16 weeks from order release.

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This page covers one problem. The other places this trade loses margin are on the curtain wall and glazing operating system page.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-11-02
WHAT BREAKS

WHERE THE MONEY GOES.

The submittal-to-fabrication critical path

Nothing can be fabricated until shop drawings are approved and field measurements confirmed. Custom curtain wall takes 16 to 24 weeks from approved shop drawings to first delivery; storefront fabrication takes 10 to 14 weeks; specialty glass 10 to 16 weeks from order release. Every week a submittal waits in review is a week of schedule delay. The glazing sub absorbs it while other trades keep billing.

WHAT THE TRADE PRESS SAYS

THE SAME PROBLEM, WRITTEN UP.

A 'Revise and Resubmit' response is expensive. It adds weeks to your schedule, delays fabrication, and creates schedule pressure that leads to shortcuts.

American Commercial Glass, 2026

Glazing isn't like drywall. You can't accelerate it by adding more crews once glass units are in fabrication.

American Commercial Glass, 2026 (same source)

WHAT THIS TRADE SHOULD EARN

THE NUMBER TO MEASURE IT AGAINST.

Curtain Wall and Glazing contractors have about 9% net profit at $1M to $5M, rising to roughly 11% at $5M to $10M. The CFOS net profit target is 12.5% before taxes at $1M to $5M, the trade's average plus 3.5 points, never below 10%. You find a problem like this in the distance between those two figures. One bad job won't tell you.

Gross margin over the same bands is 27% to 28%,against CFOS targets of 29.5% and 30.5%.

Full curtain wall and glazing benchmark bands by revenue

WHAT CONTROLS IT

THE SYSTEM THAT FIXES THIS.

Cash Flow Cycle System

Billing, documentation and collections, which is where the slow days come from.

How the Cash Flow Cycle System works

COMMON QUESTIONS

FREQUENTLY ASKED.

Custom curtain wall: 16 to 24 weeks from approved shop drawings to first delivery. Standard storefront: 10 to 14 weeks of fabrication. Specialty glass (fritted, large-format, impact-rated): 10 to 16 weeks. Nothing goes into fabrication until submittals are approved and field measurements are confirmed. Faster submittals mean a faster schedule.

Curtain wall and glazing contractors at $1M to $5M net about 9 percent before taxes on the SPM 48-trade benchmark dataset, tied with waterproofing for the strongest floor among the envelope trades, rising to 15 percent by $25M to $50M. The CFOS target at $1M to $5M is 12.5 percent net before taxes, the trade average plus 3.5 points. The margin is there. The trade's real problem is cash timing. Every net profit figure here is gross margin minus overhead, stated before taxes, the same basis CFMA reports net income on.

See the full benchmarks for every revenue band on Run On CFOS.

Because you spend months before you bill. Engineering, shop drawings, a $30,000 to $80,000 mock-up and fabricator deposits all get paid before the first unit ships. Custom curtain wall takes 16 to 24 weeks from drawing approval to delivery. Unless your schedule of values bills those phases, you pay for preconstruction alone.

Three tiers, and which one you are in depends on how much of the work you want off your desk. On Core we build your plan every month and your team does the work: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. On Strategic we build the plan, track it and adjust it every month: our team does the bookkeeping and the bank reconciliations, and the job costing and WIP software is set up and managed for you, on your own online software or ours. On Platinum we manage the money side for you every week: our team handles your bills and receivables the way an in-house controller would, and you approve every payment. We don't do payroll.

Sixty days. We migrate your books back to the start of your last taxable year and build your job costing structure from scratch, and on Strategic and Platinum we set up the job costing and WIP software too. You're fully up and working in two months. The onboarding fee is one time, the same for every tier, and set by your revenue band.
WHAT THIS TIES INTO
Josh Luebker, SPM The Construction CFO
Josh Luebker
FRACTIONAL CFO · SPM THE CONSTRUCTION CFO

Josh Luebker is a master electrician turned construction CFO, president of SPM The Construction CFO and author of CONTROL: C.F.O.S. Construction Financial Operating System.

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