Let's say you need metal grating. You search "McNichols grating," land on a page with dozens of options, and pick the one that looks closest. I've done that. It's exactly how orders go wrong before anyone calls it a problem.
I'm a quality/compliance manager at a metals fabrication shop. I review every custom-cut panel before it reaches a customer—roughly 250 unique items a year. Over the past 4 years, I've rejected about 11% of first deliveries because the spec didn't match the part. Not dramatic failures. Small things. An open area percentage off by two points. A load rating that didn't align with the drawing. A hole pattern rotated the wrong way.
A grating quote is not a material quote. It's a category quote. You need to know the series, material grade, bar thickness, pitch, bearing bar size, finish, and the standard it's manufactured to. Perforated metal panels are even more unforgiving: hole shape, hole size, center spacing, open area, sheet gauge, flatness, edge condition, and metal type all change both performance and price.
McNichols publishes a lot of this data. That's the good news. The bad news is that buyers see a catalog of similar rectangles and default to "I know what grating looks like." The surface problem isn't selection. It's the illusion that a photo is a specification.
Why does this matter? Because two panels can look identical in a brochure and perform completely differently under load. Procurement sees a sheet with holes. Engineering sees a structural component with open area, a non-slip surface, and a deflection requirement. Both are right. But if the order was placed only with a description, the part is already at risk.
I don't have hard data on industry-wide defect rates. I can only tell you about the 200+ orders we review annually. Based on that, roughly one in ten first deliveries has something wrong when the order is based on a vague description rather than a full reference spec. At least, that's been my experience with mid-size commercial orders; I can't speak for every supplier.
And I've never fully understood why this is still a problem in 2025. My best guess is that timelines push people to order faster than they can specify.
A few years ago, I skipped a step. I approved a $20,000 order of fiberglass grating based on a rep's verbal "this should be fine" because we were behind schedule. It wasn't fine. The bar spacing was wrong for the platform load, and the batch had to go back. The vendor redid it at their cost, but we lost three weeks and had to explain the delay to a client. Everyone told me to always get the full spec before approving. I only believed it after ignoring that advice once.
The cost of a wrong order isn't just the part. It's the crane time. The rework. The inspector wait. The missed deadline. The late penalty in the contract. In March 2024, we paid $400 extra for a rush batch of McNichols perforated metal panels because the first order didn't meet the engineering requirement. That $400 looked painful until I compared it with the $15,000 milestone we would have missed. After that, I stopped budgeting for "probably okay."
When I compared our 2024 Q1 and Q2 results side by side—same product names, same customers, but with a mandatory spec-checking checklist in Q2—the difference was obvious. First delivery rejections dropped from roughly 14% to 5%. Same supplier. Same team. The only change was that we made the spec language explicit before ordering.
I still request quotes from several suppliers, including McNichols. But now I treat the spec as the product. I want the complete reference on every line item: material, finish, dimension, open area, and the standard it meets. If the quote doesn't include that detail, I ask for it before ordering. If a supplier says delivery will be "when possible," I don't accept it. When a project is truly time-sensitive, I pay for guaranteed delivery. That's not a rush fee; it's certainty insurance.
McNichols can cut to size and do custom fabrication. That's useful, but only if you give them the details. A custom-cut panel with the wrong hole pattern is just an expensive piece of scrap. It doesn't matter whether it's a machine guard or a decorative bar screen behind a shelf of highball glasses and glass cleaner—the spec discipline is the same.
Per FTC Green Guides, claims like "recyclable" need to be substantiated too. Steel grating often has recycled content, but get the documentation from your supplier, don't just take a sales pitch at its word.
If you're searching for "McNichols grating" or "McNichols perforated metal panels," you're on the right path. And if your question is "where to buy McNichols grating," start with their site or a distributor who can confirm the spec before you order. But don't make that decision on price alone. Buy the specification, not the rectangle.