How to Use the McNichols Grating Catalog PDF to Order the Right Stair Treads

The fastest way to buy McNichols stair treads without wasting money is simple: download the McNichols grating catalog PDF and check the engineering notes before you request a quote. I know that sounds boring. But that one step would have saved me about $3,200 on a single order back in 2019.

Why I'm the person writing this

I'm a procurement coordinator handling McNichols orders for a contractor for eight years. I've personally made (and documented) 14 significant mistakes, totaling roughly $12,000 in wasted budget. Now I maintain our team's pre-order checklist to prevent others from repeating my errors.

I'm not a structural engineer. I'm a buyer who has learned the hard way that with industrial materials, 'cheap' is usually just the first installment.

What most people get wrong

A lot of people open a catalog PDF and look for a picture that matches what they think they want. Then they send a quote request for 'one of these.' If you're lucky, you get a follow-up question. If you're not, you get something close, but not close enough.

What most people don't realize is that 'standard turnaround' often includes buffer time that vendors use to manage their production queue. It's not necessarily how long your order takes. And here's something vendors won't tell you: the first quote is almost never the final price for ongoing relationships. There's usually room for negotiation once you've proven you're a reliable customer. But there's also room for the quote to grow when specs are missing. The catalog PDF helps you close that gap.

The mistakes that taught me

1. I ordered the wrong bearing bar spacing

In September 2022, I ordered 24 stair treads from McNichols with the wrong bearing bar spacing (the distance between the vertical support bars). I knew I should confirm the exact spec in writing, but I thought 'what are the odds? Same code as last time.' Well, the odds caught up with me. The treads looked fine on my screen. But the site inspector flagged them because they didn't match the stamped drawing. $3,200 worth of steel went straight to scrap. That's when I learned to treat every item as a new item, even on repeat orders.

2. I compared unit prices, not total cost

The $500 quote turned into $800 after shipping, setup, and revision fees. The $650 all-inclusive quote was actually cheaper. People think expensive vendors deliver better quality. Actually, vendors who deliver quality can charge more. The causation runs the other way. When you get quotes for McNichols grating, compare total delivered cost, not line-item price.

3. I rushed a decision because a PM was waiting

Had 2 hours to decide before the order deadline. Normally I'd check load tables and catalog notes, but there was no time. I went with a code from a similar past order. In hindsight, I should have pushed back on the timeline. But with the project manager waiting, I made the call with incomplete information. The reorder cost us a week and about $450 in extra freight. Time is a cost, too.

How to use the McNichols grating catalog PDF

Not all catalog PDFs are equal. The McNichols catalog is actually useful if you know how to read it. Here's my process:

1. Open the current McNichols catalog PDF and go to the stair treads section. Don't look for the photo first, go to the load tables and dimensions.
2. Copy the exact product code. Include the material (steel, aluminum, fiberglass), the bar series, and the finish (plain, galvanized, slip-resistant, etc.).
3. Read the footnotes under the table. There's usually a note about allowable loads, cutting tolerances, or stiffener requirements. Those notes are where I lost $3,200.
4. If you need cut-to-size pieces, say it in the quote request. Don't assume a stock length will work for your opening.
5. Ask for total delivered price, including cutting, coating, and freight. That's total cost of ownership in one number.

The load table is not there to confuse you. It shows maximum spans and allowable loads for specific bar sizes. If your stair tread is going to carry a forklift, you need a different product than a maintenance walkway. Match the product code to the actual site condition, not to what the old tread looked like.

What to put in the quote request

Short, specific requests get better replies. I use a template like this:

Please quote McNichols grating catalog item [code], material [steel or fiberglass], thickness [X], width [X], length [X], quantity [X], finish [galvanized or plain], cut to size [yes or no], delivered to [zip]. Include freight and all processing fees.

That forces the sales rep to send back a number that covers the actual job. If they ask questions, answer them using the catalog PDF notes. If they don't, you've already set the expectation for an all-in price.

Hidden costs are everywhere (not just in grating)

If you've ever bought a toilet fill valve, you know the cheap one can cost you more than a good one if it leaks. Foil board (the insulation kind) only works if its seams are sealed properly; otherwise you're paying for insulation that doesn't do its job. And the reason people look up how to fold a fitted sheet is simple: a little effort up front saves a lot of frustration later. The same idea applies to a McNichols stair tread: the details in the catalog PDF are the whole game.

The total cost formula that changed how we buy

I use this before comparing any vendor quotes. It's not fancy:

TCO = unit price + freight + cutting/coating + time cost + rework risk.

Basically, if a quote is low on unit price but high on rework risk, it's not low. This is why I ask for the all-in number from McNichols before I compare it to anyone else. The catalog PDF lowers the rework risk because you're specifying correctly up front.

Authority notes: don't trust 'heavy duty'

Per FTC guidelines (ftc.gov), product claims have to be substantiated. So if a salesperson says 'that's the heavy-duty option,' ask them to show you the load table in the catalog PDF. If the product's specs aren't there, or the quote doesn't match the spec, treat it as a red flag.

Also, shipping costs matter. As of January 2025, USPS charges $0.73 for a 1-oz First-Class Mail letter (source: usps.com/stamps). That's easy. Freight for steel grating is not easy. It changes by weight, distance, and how fast you need it. Always ask for the delivered price before approving an order.

When you shouldn't follow my checklist

Honestly, this checklist is for standard orders: stock stair treads, standard load tables, and normal building openings. It's not a substitute for an engineer in these situations:

• Custom stair treads with non-standard loads or spans.
• Projects that need specific building-code approval or stamped drawings.
• Composite or fiberglass installs where chemical resistance matters more than cost.

In those cases, use the catalog PDF as a starting point, then talk to a qualified engineer.

Final word

The McNichols grating catalog PDF is not just a product list. It's a spec sheet, a load table, and a checklist. Use it like one. Your future self, and your budget, will thank you.