Home Depot's 'Half Its Revenue Is Pros' Stat Hides the Part That Matters

A plumber pulls into a Home Depot parking lot, walks in for three fittings and a roll of tape, pays cash, and is gone in four minutes. He does this twice a week. Multiply him by a few million tradespeople running short on something, and you get one of the most-repeated stats in retail: pros are about half of Home Depot's business.⁶ It sounds like a moat. It is actually a confession. Because that plumber's $40 infill run is not where the money in his trade lives - the money lives in the $40,000 of materials he orders for the bathroom remodel, delivered to the job site, from a distributor whose name was not, until recently, Home Depot.

The official story is that Home Depot quietly built a powerhouse pro business worth half its revenue, hiding in plain sight behind the orange aprons. The truer story is that Home Depot built a powerhouse pro storefront - and discovered it was capturing the shallow end of the pro wallet while the deep end flowed past it to specialty distributors. Then it spent more than $24 billion to go buy the deep end.

The CEO said the quiet part out loud

Home Depot's 10-K is careful. It names two customer groups - consumers, split into do-it-yourself and do-it-for-me, and professional customers: the renovators, general contractors, electricians, plumbers, and painters.¹ What it does not do is publish an audited line that says pros are 50% of revenue. That figure is management commentary, repeated on calls and in slide decks, not a number an auditor signed.¹ So the most famous fact about Home Depot's pro business is an estimate, not a disclosure - and estimates can carry assumptions the headline never examines.

The assumption buried inside the 50% is that pro revenue is high-value project work. Ted Decker dismantled that himself. Around this period, the CEO acknowledged—as reported from investor conference appearances in late 2023—that while pros make up roughly half the business, most of that revenue is 'cash and carry' infill orders, not the large, complex project spend that carries the better economics and the stickier relationship.⁶ In other words, Home Depot was the convenience store of the construction trades. Indispensable for the thing you forgot. Absent for the thing you planned.

Why a store aisle can't hold a contractor's real order

The mechanism is geography and timing, not loyalty. A contractor mid-project does not want to load a truck at a retail bay and burn a crew's morning hauling drywall and shingles. He wants a pallet delivered to the lot before the crew arrives, billed on account, against an estimate he can trust. That is a distribution business - direct job-site delivery, trade credit, specialized inventory - and it is structurally different from running a big-box store that happens to also serve pros. A store optimizes for the walk-in. A supply house optimizes for the job. You cannot bolt the second onto the first by adding a pro desk near the entrance; the desk still sits inside a building the contractor has to drive to.

This is the gap the 50% headline papered over. The retail format was a near-perfect machine for capturing infill demand and a structurally poor machine for capturing project demand. Home Depot's investments in the in-store pro experience were real and worked - more than $1 billion in annual incremental sales across 17 markets, with comparable pro sales finally outpacing DIY by Q4 fiscal 2024.⁹ But notice what that proves: even a winning store-side pro push still tops out at the limits of the store-side model. To go deeper, the format itself had to change.

The $24 billion admission

If the store could capture the deep pro wallet, Home Depot would have kept spending on stores. Instead, on June 18, 2024, it closed its acquisition of SRS Distribution for an enterprise value of roughly $18.25 billion - cash and new long-term debt for a specialty trade distributor serving roofers, landscapers, and pool contractors at the job site.² The announcement framed it as expanding Home Depot's total addressable market to approximately $1 trillion—an increase of approximately $50 billion—while positioning the company 'as a leading specialty trade distributor across multiple verticals.'³ Then SRS itself went shopping: in mid-2025 it agreed to acquire GMS for an enterprise value of about $5.5 billion - drywall and building-products distribution - completing the deal that September.⁴ Note the structure: GMS was bought by SRS, Home Depot's subsidiary, not by the retail parent. The supply-house business is being built as its own thing, beside the stores, not inside them.

Read those checks as a sentence and they say something the slide decks won't. The company that already had 'half its revenue from pros' just paid the better part of $24 billion to reach pros it supposedly already had. You do not buy a distributor to serve customers your stores already capture deeply. You buy one to capture the spend your stores were missing. The acquisitions are the most honest disclosure Home Depot has ever made about the quality of its pro revenue.

The honest counter: maybe owning the infill was always the smart seat

The fair objection is that cash-and-carry infill is not a weakness - it's a beautiful business. Those small runs are high-frequency, low-service-cost, and they bring the contractor through the door constantly. Owning the moment a pro runs short is a real asset, and arguably a more defensible one than low-margin commodity distribution, where SRS and GMS compete on logistics and price. By this read, Home Depot wasn't confessing a gap; it was a $164.7-billion retailer with near-flat comparable sales - 0.3% growth in fiscal 2025 - buying a new growth vector because its core had matured.⁵

That's true as far as it goes, and it's why the move is a bet rather than a sure thing - distribution margins are thinner than retail, and integrating two acquisitions is hard. But it doesn't rescue the original headline. If owning the infill were sufficient, the deep-project spend wouldn't be worth $24 billion to chase. The very fact that Home Depot is now building direct job-site delivery, trade credit, and AI estimating tools—including AI-powered project management and material takeoff tools to help contractors plan and source materials—to embed itself in the contractor's workflow tells you which half it judged it didn't really own.¹⁰ The counter is right that infill is good. It's wrong that infill was enough.

Home Depot spent decades being the place the trades stopped on the way to the job. That was a real franchise, and a real moat - but only over the part of the work that happens in a panic. The deeper moat, the one that holds a contractor for the length of a build, was never in the aisle. It was on the loading dock of a distributor across town. Home Depot just paid $24 billion to move that dock onto its own books - which is the clearest possible proof that for all those years, the most quoted number about its business was measuring the shallow end of the pool.