How A. Marinelli & Sons Found Half Their Catalog Was Wasted Space And Grew 40%
The Stakes
In construction materials distribution, warehouse space is real estate. Every square foot occupied by slow-moving inventory is a square foot that isn't generating profit. And when margins are tight, carrying costs compound — you're not just storing product, you're paying to store it while it ties up cash that could be working harder.
A. Marinelli & Sons has been a trusted supplier of masonry materials, Readi-Mix Concrete, and EIFs across Southeastern Pennsylvania, South Jersey, and Delaware for over 60 years. Four generations of operational knowledge. A catalog built over decades. But that catalog had grown organically — and no one had ever asked which SKUs were actually earning their keep.
The Hidden Problem
When we started working with Marinelli, we didn't lead with assumptions. We led with questions. What's actually moving? What's sitting? Which products drive margin and which ones just take up space?
The answers revealed something most suppliers suspect but rarely quantify: the catalog wasn't working as hard as the team was.
The Profit System We Built
Identifying the problem is step one. Building systems to fix it — and fuel growth — is where the real value lives. Over 15 months, we've built and implemented a connected set of tools that changed how A. Marinelli & Sons operates:
The goal wasn't just to trim the catalog. It was to build a system that connects inventory decisions to sales strategy to growth — so every dollar of capacity works as hard as the family does.
We'd built the catalog over 60 years, but we'd never really asked which products were earning their place. When Datajolt showed us that half our SKUs weren't pulling their weight, it changed how we think about the whole operation. Now we know exactly where to focus — which products to push, which to phase out, and where the growth is. We're not just running the business day-to-day anymore. We're building toward something bigger.
The Results
What's Next
Fifteen months in, the partnership continues to expand. Concrete — one of Marinelli's crown jewel SKUs — is a major focus. With capacity increasing and a new location on the horizon, we're aligning sales efforts to grow the concrete customer base in surrounding markets.
That's the thing about a Profit System: it doesn't just find the hidden money. It connects the dots between what you carry, what you sell, and where you grow — so every decision compounds into the next.
What's hiding in your catalog?
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