I Spent $1M on Stone and Tile. Here's How I Evaluate MSI Quotes

I still remember the invoice that made me rethink our entire procurement process.

In Q2 2024, we accepted a bid for a large-format tile and quartz package. The bid came in about 15% below the next quote. Everyone on our team, including me, wanted it to work. The savings would have covered a lot of budget slack for the year. Instead, the project ran nine days late, we paid overtime to a second crew, and we spent roughly $6,000 more than the second-place quote. That story is the reason I track total cost, not unit price.

For context: I'm the procurement manager at a mid-sized construction firm that does multifamily and light commercial interiors. We've managed our surface materials budget for six years, and we spend about $180,000 a year on stone, tile, and engineered flooring. That's more than $1 million in cumulative orders. I have every purchase order, delivery receipt, and non-conformance report in our tracking system. A big share of those specs came from MSI, but we've also bought from smaller importers and regional distributors. The pattern is clear.

Why per-square-foot pricing misleads you

Every procurement person starts with the same number: price per square foot. It feels objective. But for cut-to-size countertops and floor installations, the per-square-foot price is the opening balance, not the closing cost. The real variables sit in the paperwork below it:

• Slab grade. A low quote may assume a thinner slab, a shorter slab, or a lower grade with more surface imperfections. It looks the same in a PDF.
• Cutting waste. If your kitchen island needs a 65-inch slab and the vendor cuts it from a full slab, you may be charged for the whole slab. Waste rates of 15–25% are common in architectural stone.
• Delivery and handling. Does the quoted price include delivery to the jobsite, crane offloading, and transport to the floor? In three of our last four problem orders, the answer was no.
• Edgework and cutouts. These are often listed as “optional” and added after an order is in production.

The cheaper vendor didn't lie to us. He quoted exactly what we asked for: the stone at a unit price. But the stone we needed for the project wasn't the stone printed in the quote.

What most people don't understand about stone pricing

Here's something vendors won't tell you: the price quote and the cost of the project are usually separated by batch matching.

Natural stone comes out of quarries in finite batches. A granite slab from one shipment can differ noticeably from another shipment of the same named stone—sometimes slightly, sometimes enough that you won't install them side by side. Engineered quartz is more consistent, but not perfectly consistent. Dye lots, resin formulas, and backer board thickness all vary over time.

We learned this on a white quartz countertop order for a custom home. The two slabs we picked for a kitchen came from different production lots. Under natural light, the difference was subtle. Under the island's under-cabinet lighting, one slab looked slightly yellow. The homeowner noticed. We ended up replacing one slab at our cost, and the supplier had no matching slab in stock.

People assume expensive vendors charge more because their margins are higher. In reality, it's usually the other way around. Vendors with serious quality control spend extra money on pre-sorting slabs, holding matching inventory, and refusing to ship questionable material. That cost shows up in their quote. A lean quote often means those steps were skipped—not that their team is more efficient.

I don't have hard data on the industry-wide defect rate for budget stone. I can only tell you about our sample: 42 stone and tile orders over six years where we selected the lowest quote. In at least 12 of those orders, we incurred an unplanned cost after the bid was accepted. That's close to 30%. The unplanned cost was almost always larger than the savings that got us there.

What cheap stone actually costs

The failure isn't always the product. Sometimes it's the schedule.

On the Q2 2024 project I mentioned, the delay wasn't because the tile was defective. The supplier shipped the stone with an incomplete edge profile, and by the time we coordinated a replacement, the floor finishing crew had already moved to another site. We paid a second crew to come back and set the new material. We also paid for storage of the first delivery, which is an absurd side quest that never appears on a quote.

That's the pattern I see in our cost tracker. The cheap bid saves money in the budget line labeled “Materials,” and then spends it back—plus interest—in lines called “expedite,” “overtime,” “replacement,” and “customer follow-up.” In one case, we spent $9,000 on expedited freight for a slab that was “free shipping” in the original quote. The savings were $4,200. The freight cost more than the supposed savings.

And that's before you count the soft cost. A stone mismatch on a $2.5 million renovation makes you look careless in front of the client. That type of reputational damage is hard to put into a total cost formula, but it's real.

How we calculate the real cost now

We still compare quotes. But we require three vendors to bid on the same scope: same slab thickness, same edge profile, same delivery terms, same cutout and finish list. Once the scope matches, I apply a simplified TCO model:

• Base cut-to-size cost
• Expected waste factor (10–25% depending on the layout)
• Delivery, offloading, and expedite terms
• Batch matching commitment for future orders
• Track record on the last jobsite, not just the showroom

We don't always choose the highest bid. We usually don't choose the lowest either. We choose the one that can deliver the project without introducing risk into the schedule.

This is why I appreciate MSI as a supplier. They carry a deep product line—quartz, natural stone, slate tile, marble, tile and engineered flooring—which matters more for TCO than most people realize. A wide selection usually means more slabs from the same batch in stock, and a better chance of matching future additions. It also means the showroom can display realistic full-scale layouts instead of forcing a design decision from a brochure sample. Their display areas are useful for comparing slab movement, color depth, and finish before we commit.

I'm not saying MSI is the least expensive. In some categories, they're higher than a direct import quote. And I'm not saying every project needs the top-tier vendor. What I am saying is that the difference in unit price is often the cheapest part of the risk in the project. When I look at our last six years of data, the errors coming from “just a slightly cheaper material” consistently outweighed the initial savings.

This approach worked for us because our purchasing is predictable: quarterly, repeatable, and based on documented specifications. If you're a one-off homeowner or buying for an emergency job, the risk equation is different. For a one-off, you might accept the risk of the cheapest quote. But if you're building a business reputation on that renovation, the math changes.

So next time a stone quote looks too good to be true, don't ask “What's the price per square foot?” Ask what else the order will cost before it sits in place. The answer usually tells you more than the number ever will.