Home Depot SKU Lookup: SKU vs UPC vs Internet Number

The four numbers on every Home Depot product

A Home Depot SKU lookup starts with knowing which number you're holding. Every product on homedepot.com has up to four IDs, and they each do a different job.

The short version: the Store SKU and UPC are what you use in the store. The Internet number is for the website.

What is the Home Depot Store SKU?

The Store SKU is Home Depot's own product number for stores. You'll see it on the product page, usually near the Internet number and Model number. It's often printed on shelf tags too.

Store SKUs are either 6 or 10 digits. Both are normal. The length doesn't mean anything about clearance or price.

Penny hunters care about SKUs because that's how finds get shared. When someone posts an item in a group, the SKU lets you look up the same product at your own store. Keep in mind that the product matches, but the price might not. Penny prices are store-specific.

What is the UPC?

The UPC is the 12-digit barcode printed on the item's package by the manufacturer. It's the barcode the register reads at checkout.

This is the number that matters most in the aisle. When you scan with the Home Depot app, scan the UPC on the product itself, not the shelf tag. Shelf tags often lag the system price and can belong to a different item that got moved.

A few things trip people up:

• Multiple barcodes on one box. Some boxes have QR codes or inner-pack barcodes. Cover the extras with your hand so the app or self-checkout reads the right one.
• Multipacks. A 5-pack and a single may have different UPCs. Make sure you're scanning the one you're buying.
• Damaged labels. If the barcode won't scan, type the 12 digits into search.

What is the Internet number?

The Internet number is a 9-digit ID Home Depot uses for its website. It's in the product page URL and listed on the page itself.

It's great for sharing a link or searching online. In the store, it's less useful since it isn't printed on the package. If you only have an Internet number, plug it into the app search and you'll get the product page, which shows the Store SKU and lets you check price at your store.

What is the Model number?

The Model number comes from the manufacturer. It's useful for:

• Finding manuals, replacement parts, and warranty info
• Comparing the same product at other retailers
• Telling apart near-identical items, like two finishes of the same faucet

Model numbers can be long and mix letters and numbers. They're not the best way to look up a price at a specific store, but they're handy when you're researching an item for resale.

How to do a Home Depot SKU lookup

Here's the simple way, using the Home Depot app:

1. Set your store. Every price and stock count is tied to the store you've selected.
2. Search the number. Type the Store SKU into the search bar. If that doesn't work, try the UPC, then the Internet number.
3. Open the product page. Check the price, stock, and aisle and bay for your store.
4. Change stores to compare. Switch your selected store and search again to see another store's price.

On the website, it works the same way. Search the number with your store selected. For a deeper walkthrough of reading results, see our guide to Home Depot app price checks.

Which number should you use when?

Why SKU lookups matter for clearance and penny hunting

Clearance lives store by store. There's no national markdown day, and the same item can be on deep clearance at one store and full price at another. A SKU lets you check the exact same product across stores.

That's useful for things like:

• Following up on a lead. A friend found a clearance light fixture. Look up its SKU at your store before you drive.
• Tracking a markdown. Save a few SKUs and check them now and then to see if the price drops.
• Spotting odd results. If an item suddenly shows no price, "see price in store," or 0 in stock at your store, it may be worth a closer look. Shoppers report penny items often show this way, though it isn't proof.

For example, in our scans in the Houston area in October 2026, a SHOCKWAVE Impact-Duty Titanium Step Bit Set (8-piece) showed $8.50 (was $99.97) at one store. Looking up that same SKU at nearby stores is how you'd find out whether others had it marked down too.

If you'd rather not look up SKUs one store at a time, PennyLoot checks clearance prices at the Home Depot stores near your ZIP and shows each product's price at every nearby store on one card. You can search by ZIP for a free preview.

SKU lookup mistakes to avoid

• Wrong store selected. The most common mistake. Always check which store the app is set to.
• Scanning the shelf tag. It can be old or belong to another item. Scan the package UPC.
• Mixing up a .01 price with a penny. A price like $61.01 is not a penny. A penny item rings at $0.01.
• Trusting a shared SKU blindly. A penny in another state tells you nothing certain about your store.
• Treating the app as final. The register price is what counts, and stores can decline to sell an item that rings up at $0.01.

Want to know what to do once you've got the SKU and a good price? Our guide on how to find penny items at Home Depot, step by step covers the full process, and the Home Depot penny items guide explains how penny prices work. For non-penny deals, start with the Home Depot clearance guide.

Quick checklist for SKU lookups

• Store selected in the app matches the store you care about
• Searching by Store SKU or UPC, not just the product name
• Scanning the package UPC in the store, with extra barcodes covered
• Comparing a couple of nearby stores before you drive
• Remembering that a $X.01 price is not a penny
• Treating any app price as a lead until the register confirms it