MSI Pre-Order Checklist: Tile, Stone, Flooring, and Wallpaper

I've been specifying and managing material orders for commercial construction for 11 years. In that time, I've personally made and documented 14 significant mistakes—totaling roughly $47,000 in wasted budget. Now I maintain our team's checklist so the next person doesn't pay for my education.

This is for contractors, fabricators, and facility managers who order from wholesale distributors like MSI. If you're buying one box of tile for a backsplash, you don't need this. If you're buying 500 boxes of tile, a truckload of stone, or a project's worth of flooring, use it. 5 minutes of verification beats 5 days of correction.

Who should use this checklist?

Use this when you're placing a bulk order and the cost of a redo starts to hurt. The steps look simple. They are. The danger isn't complex technical analysis—it's assuming 'this time will be fine.'

1. Confirm the real spec before you compare prices

I said 'tile adhesive' once on a large exterior job. What I meant was a large-format, rapid-set mortar. What the distributor heard was 'whatever thin-set is available wholesale.' Result: 47 pails of interior-rated mortar, all wrong. The mistake didn't come from laziness. It came from using a generic category word instead of a product spec.

If you're buying tile adhesive wholesale, put the ANSI number into your PO. For standard tile, specify a mortar that complies with ANSI A118.4. For large-format tile, specify ANSI A118.15. Ask for the data sheet and check coverage at the trowel size you're actually using. The 'coverage table' on the bag assumes a perfect substrate and a perfect trowel. Neither exists.

Checkpoint: Does the PO list a standard, a product name, and the trowel notch? If not, it's not a spec. It's a wish.

2. Ask for lot numbers, not just a pretty sample

In 2017, I picked a gorgeous MSI stone slab for a multifamily lobby. The sample looked like a river in winter. The production lot that arrived looked like the same river after a flood. Book-matched panels had a different background color, and the installed result would have been impossible to patch. We had to stop fabrication, reorder matching slabs, and eat a $6,800 restock plus a 3-week delay.

Stone, tile, and quartz are manufactured in batches. Different lots can be surprisingly different. Always ask for the current lot number and get a sample from that same lot. If the material is natural stone, ask for the block or slab ID.

For color-critical decisions, the industry reference is Delta E < 2 for a match that most trained observers accept (Source: Pantone Color Matching System guidelines). But don't rely on numbers alone. Put the physical sample next to the actual delivered material before installation, not after.

Checkpoint: Do you have a sample from the same lot you're ordering, and is that lot number written on the PO?

3. Don't treat wallpaper like tile

People assume a roll of wallpaper is a roll of wallpaper. It's not. Unlike tile, wallpaper doesn't have one universal dimensional tolerance that covers every roll. Dye lots, pattern alignment, and emboss matching are all variable. If your order includes MSI wallpaper or any wallcovering from a distributor, apply the same lot rule as stone: request roll labels, lot numbers, and a sample from the actual run.

I once submitted a wallpaper spec without checking the backing/adhesive compatibility. The installation crew used a standard wallpaper adhesive on a barrier-coated product. We replaced 18 rolls and had to repaint the wall. What I learned: don't assume 'wallpaper' means your sub's default process will work.

Checkpoint: Are the roll labels and lot numbers in the submittal? Does the adhesive product match the backing?

4. Request the compliance file before you sign the PO

A solid surface distributor can sell you a product that's fine for residential bathrooms but problematic for commercial food service or healthcare. I once ordered 28 fabricated countertops from a solid surface distributor and forgot to ask for the test reports. The countertop itself was compliant. The paperwork wasn't, so the inspector flagged it. We stopped the install, chased certificates, and lost four days.

If you're working with a solid surface distributor, ask for these before payment:

• NSF/ANSI 51 certificate if the tops will touch food
• IAPMO/ANSI Z124 compliance for plumbing-related applications where required
• Flame spread / smoke developed values per ASTM E84
• Warranty registration requirements and any seam adhesive approvals

This step feels like overkill until you're standing in front of an inspector. Then it's the only thing you care about.

Checkpoint: Does the submittal package include the manufacturer's current compliance documents, not a verbal assurance?

5. Check vinyl flooring compliance requirements against the actual install location

In September 2022, I approved a vinyl flooring order for a school renovation. We checked thickness, wear layer, and color. The building inspector asked for VOC emission data, slip-resistance values, and the product's classification under the applicable performance standard. We had to pull 12 boxes out of a classroom while we confirmed compliance. Delivered on time, but not exactly the smooth process I wanted.

Vinyl flooring compliance requirements aren't universal. They vary by state, by project type, and by contract. At minimum, ask the distributor for:

• ASTM F3261 classification if it's a rigid core luxury vinyl plank
• VOC emissions documentation (for example, California Section 01350 or floor score) if required
• Slip-resistance (coefficient of friction) test data for the actual floor finish
• Flame spread / smoke developed values for commercial spaces

Do not accept a generic 'flooring certification' without checking the product in the PO. The document needs to match the product name, collection, and wear layer.

Checkpoint: Do the compliance documents list the exact product and thickness you're buying?

6. Create a formal approval chain for substitutions

The third time a supplier tried to swap a material 'for something equivalent,' I created a formal substitution request procedure. What I mean by formal is simple: no substitution gets into the PO unless a person with authority signs it. It sounds bureaucratic. It's cheaper than finding out after installation.

In 2023, a rep at another company substituted a 'same grade' tile without asking. It was not the same grade. The tile was slightly thinner and had a different facial size. Removing it and prepping the substrate cost $3,200. That's why this checklist step exists.

Checkpoint: Does your PO state that substitutions require written approval before shipment?

7. Verify the delivery against the BOL while the truck is still there

When the delivery arrives, check the boxes before signing. I want to say we've caught 47 potential errors using this checklist in the past 18 months, but don't quote me on that exact number—the point is we catch them early. Each time, the problem was a mismatch between the PO and the actual lot, quantity, or product name.

Open at least a few cartons. Compare lot numbers to what's on the PO. Confirm the batch color on the box. Count by unit, not just by palette count. If something is wrong, note it on the BOL and take photos immediately. Do not wait until the installer opens the last box.

Checkpoint: Are lot numbers and quantities listed on the delivery receipt identical to the PO and the compliance docs?

Notes and common mistakes I still see

Two quick cautions.

First, don't only check coverage area for tile adhesive. Open time and curing conditions matter. If the temperature on site is above 85°F or the wind is pulling moisture out of the mortar, the coverage table on the bag doesn't apply. Your distributor isn't your on-site tech rep. Install with a plan.

Second, keep records after the install passes. Store the submittal, batch numbers, lot numbers, and a photo of the installed work. If a warranty issue shows up in month 12, you'll want those documents. This is boring. Boring is good.

The payoff

Last month, we caught a wrong color before a single box was opened. Not because I'm brilliant. Because the checklist caught it. There's something satisfying about a clean PO with every compliance doc attached—after all the stress of 2022, finally seeing an inspection pass without a single nonconformance is the payoff.

Five minutes of verification beats five days of correction. Every time.

Note: Standards and certifications change. Product classification, compliance requirements, and test data should be verified with official standards bodies and the manufacturer for your specific project. This article is general guidance, not engineering advice.