McNichols Steel: A Quality Inspector’s Guide to Grating, Cladding & Scaffolding

Why I stopped giving a one-sentence answer

I'm a quality/compliance manager for a metal fabrication and construction supply company. I review roughly 200 incoming orders a year before they go into inventory or out to a project site. In 2024, I rejected somewhere around 8% of first deliveries. The reasons were rarely dramatic: wrong perforation patterns, coating damage, missing mill certificates, edges that didn’t match the approved sample.

So when someone asks if McNichols steel is the right choice, I can’t give a single yes or no. I’ve used McNichols on many projects. I’ve also told buyers to call a local fabricator when the schedule made that the better move. The issue is not whether the name is good. The issue is whether your buying scenario matches how that supplier should be used.

A recommendation without a defined scenario is just a guess. My job is to reduce guessing.

Every order for steel building materials falls into one of three scenarios

I sort buying decisions into three buckets:

1. Existing spec, stock purchase. Drawings are approved, tolerances are clear, and you mainly need the right steel building materials delivered on schedule.
2. Design still moving. Metal cladding, perforated panel screens, custom handrails, or other visible metal details have not been finalized.
3. Repeat production, OEM, or private label. Components will enter your product or carry your brand, such as scaffold parts, elevator panels, or machine guards.

These buckets are not quality rankings. They change what “good specification” means. That might seem like a small distinction, but it changes the conversation with a salesperson and the inspection plan at the receiving dock.

Scenario 1: You already know what you need from McNichols grating

If your project has a complete drawing and a schedule, you are in the simplest bucket. McNichols steel and McNichols grating can work well because the specification can be checked before the material leaves the facility.

Still, don’t treat a brand name as a spec. Saying “McNichols grating” gets the catalog started; it does not tell the fabricator about material grade, bar spacing, edge style, loading, or coating. For metal bar grating, a reliable way to close that gap is to reference an accepted design manual such as NAAMM MBG 531 for load tables and tolerances, and to specify the required steel grade, for example ASTM A36, when structural shapes are needed.

At receiving, I check three things first: material test reports, dimensional tolerance, and finish. If the drawing says ASTM A36, I want traceability to that grade. If the item is hot-dip galvanized, I ask for coating thickness and I reference ASTM A123/A123M when applicable. If the paperwork does not line up with the drawing, the material is not acceptable regardless of supplier.

Honest boundary: if your job is a tiny, non-structural patch and the local metal shop can shear or brake it while you wait, use the local shop. National inventory is not the best answer for every low-value pickup. But if you need consistent grades across multiple project locations, or you need a documented package for a structural installation, using a supplier with a formal spec process, like McNichols, makes the receiving audit easier.

Scenario 2: When metal cladding specifications aren’t final yet

This is the area where I find the most value from a specialist. A mill can sell coil; a general supplier can sell flat sheet. A metal supplier with design assistance can help write better metal cladding specifications.

I understand why designers sometimes pick a finish first and then ask for pricing. It feels like progress. From my side of the receiving dock, I have watched more cladding problems caused by edge curl, coating color drift, hole stagger, and flatness than by the raw material composition. So I try to write metal cladding specifications around performance and tolerances, not just around a material brand.

A few things need to be decided before ordering: substrate and gauge, panel width and height, open area, edge treatment, coating system, and acceptable flatness. If you can only change one thing, make it the coating. For exterior architectural metal, a coating performance reference such as AAMA 2605 for high-performance architectural coatings gives you a more durable baseline than a color name alone.

Ask for full-size or near-full-size samples whenever possible. When I compared two perforated panels side by side—same steel grade, same finish, different hole stagger—the visual difference was far larger than the drawings implied. One looked refined; the other looked like a utility product. Nobody caught it in CAD review. The sample caught it.

If the facade is part of a fully engineered, tested system with a specified system provider, do not let material substitution override that approval. That is the one time I would tell a buyer to step away from a broad metal supplier and buy through the approved system.

Scenario 3: Scaffolding OEM vs private label, and other repeat purchases

This is where I see the most expensive vocabulary problem. People use OEM and private label like they are quality tiers. They are not.

If you are a scaffold manufacturer, you are the OEM. You buy component parts to your drawings, and those parts go into the scaffold system you sell. You need suppliers who can manufacture to a revision-controlled drawing, provide material traceability, and support first-article inspection before a production run.

If you are a rental company or distributor that wants to sell a standard scaffold product under your own brand, private label is usually the more practical route. The supplier uses a standard design, applies your logo or paint scheme, and ships the product. This is not automatically lower quality. It is a different level of design ownership.

So scaffolding OEM vs private label is not a battle between premium and budget. It is a decision about who controls the drawing. If you modify the design or add custom load requirements, private label no longer fits. If you simply want a standard screwjack or plank assembly with your brand on it, do not pay for custom OEM development risk.

The mistake shows up when a buyer says they want OEM support but cannot provide drawings. There is no OEM spec to quote. What they actually need is custom manufacturing or private label, depending on design ownership. After a few quoting rounds, the budget balloons and no one has answered the liability question.

For repeat production, put the following in the purchase agreement: revision number of the drawing, material grade, coating and finish requirement, certification documents required per lot, and inspection criteria. That list sounds like back-office work, but it is the difference between a smooth receiving audit and an 8,000-unit quality dispute.

Which scenario are you in?

Instead of starting with “Which McNichols product do I need?” start with:

1. Is the drawing already approved? If yes, you are in Scenario 1 or an OEM production order.
2. Will the visual appearance affect acceptance? If yes, treat it as Scenario 2 and get samples before finalizing metal cladding specifications.
3. Will your company’s name or product system be on the part? If yes, Scenario 3 applies. Ask the supplier whether private label or OEM is correct.
4. Can you state the rejection tolerance? If you cannot define what is unacceptable, do not place the order yet. Call McNichols’ spec support or another supplier with engineering depth first.

That last question is not a sales tactic. A supplier can only control what the contract says. If your drawing has no tolerance note, I can almost guarantee the first delivery will test that gap.

For an approved commodity buy, McNichols steel and McNichols grating can be the right path. For an evolving facade, look for design assistance and sample review before you commit to a final product. For production items, sort out scaffolding OEM vs private label early. Once you know which of those scenarios you are in, the purchase order writes itself.

Quality is not a supplier label. It is a match between specification, process, and verification.