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Key blanks might look like tiny, unremarkable pieces of metal, but they’re the starting point for every working key that secures your home, office, or favorite toolbox. Whether you’re replacing a lost key, creating spares for family members, or starting a DIY locksmith project, understanding key blanks can save you time, money, and a lot of hassle. This guide walks you through the best places to buy key blanks in the US, how to pick the right one, and practical tips for cutting and using them safely.
Not all blanks are created equal. Cheap metal can wear out teeth faster, poorly cut blanks can damage locks, and the wrong profile won’t even fit. Investing in branded blanks like Ilco, JMA, or original equipment manufacturer (OEM) blanks from Schlage and Kwikset ensures a clean cut and a long-lasting duplicate. Think of a key blank like a foundation for a house — a solid base makes the finished product reliable.
Key blanks vary by profile, manufacturer, and security level. For residential needs you’ll see familiar names and codes, while commercial and high-security applications use different systems. Knowing these types helps you identify the correct blank when shopping.
Most US homes use common keyway profiles such as KW1 (Kwikset), SC1 (Schlage), and Yale 5-pin variants. These blanks are often about 2.25 inches long and are widely available at big box stores and hardware shops. They’re perfect for everyday residential locks and are easy to duplicate.
High-security blanks like Medeco and Mul-T-Lock use patented profiles and require authorization for duplication. These blanks are designed to resist picking, drilling, and unauthorized copying. If you manage commercial properties, these are the blanks you’ll gravitate toward, though they usually cost more and involve locksmith verification.
When looking for key blanks, you can choose between big box retailers, hardware chains, online marketplaces, kiosk services, and local locksmiths. Each has strengths depending on whether you need a single blank, bulk quantities, or a restricted blank that requires verification.
The Home Depot stocks a wide range of blank keys and key-cutting services at many locations. You’ll find common residential blanks and a decent selection of commercial blanks. They’re a reliable stop if you want to pick up a blank and have a key cut by trained staff or use their key-cutting machines for an immediate duplicate.
Lowe’s is another national chain with a broad selection of key blanks and in-store cutting. Their inventory usually includes major brands like Schlage, Kwikset, and Yale. If you prefer shopping in person and want same-day duplication, Lowe’s is a practical option that balances selection and service.
Ace Hardware mixes national distribution with local expertise. Many independent Ace stores offer personalized service and can order specific blanks if they aren’t in stock. If you like working with staff who know local lock types, Ace is a solid middle ground between big-box convenience and neighborhood-level attention.
Walmart carries basic key blanks and offers low-cost duplication via in-store service centers at many locations. They’re a budget-friendly choice for common residential keys, though their selection of specialty or high-security blanks might be limited compared to hardware chains.
Amazon is often the go-to for bulk orders, hard-to-find blank models, or specialty brands. You can order specific OEM or aftermarket blanks and have them shipped right to your door. Beware: listings vary in quality, so look at seller ratings and product photos to ensure you’re buying the right profile. If you need a large quantity or an obscure blank, Amazon’s range is tough to beat.
Self-service kiosks like KeyMe and MinuteKey (commonly located in malls and big-box parking lots) are great for fast duplicates. These kiosks scan your existing key and cut a duplicate on the spot. They handle common residential blanks easily and are ideal when you’re on the go, though they won’t service restricted or high-security profiles that require locksmith authorization.
For hard-to-find blanks, commercial-grade keyways, or restricted systems, local locksmiths and specialty suppliers are essential. Locksmiths have access to brand-specific blanks, proprietary keyways, and the tools to handle complex jobs like master key systems or restricted-key creation. Specialty suppliers and authorized dealers for brands like Ilco and JMA can also supply quality blanks in bulk.
Buying online gives you a huge selection and the convenience of shipping, while in-store purchases offer immediate service and hands-on verification of fit. If you’re unsure about a profile, bringing an existing key to a store or locksmith can prevent ordering the wrong blank. For one-off residential blanks, in-store duplication is fast and straightforward. For bulk orders or rare blanks, online vendors and specialized sellers make more sense.
Choosing the correct blank comes down to matching the keyway profile, the thickness, and the shoulder-to-tip measurement. With the right blank in hand, cutting is straightforward; with the wrong one, the blade won’t drop into the lock properly or might bind, damaging the lock.
Many keys have stamped codes on the bow (head) that indicate the blank model — codes like KW1 or SC1. Those codes are your shortest path to finding a matching blank online or in-store. If the code is missing or worn, you can compare key profile shapes visually or consult a locksmith for identification.
Measure key dimensions in inches — many blanks list length and blade thickness in inches as well. The most useful measurement is the shoulder-to-tip distance, which determines where cuts will be made relative to the shoulder. For example, a typical residential blank might be 2.25 inches long with a shoulder position that centers the cuts at specific intervals. Carry a small ruler or caliper when shopping to double-check dimensions.
Once you have the right blank, you can get the key cut or programmed in different places. Big box stores and locksmiths cut mechanical keys using code machines or duplicators. For electronic keys and smart keys, programming is often required — that’s where locksmiths or automotive dealerships come in. Kiosks and many hardware stores handle standard cuts but won’t program transponder chips.
Think beyond convenience. If you've moved into a new place, lost multiple keys, or suspect a key has been copied without permission, replacing locks or upgrading to a restricted key system can protect your property. High-security blanks and patent-protected systems reduce the risk of unauthorized duplication and are worth the investment in sensitive situations.
If you like to tinker, there are safe, simple steps you can take at home. Lightly file any rough edges on a new blank before cutting, clean the lock cylinder with compressed air and graphite, and test a newly cut key several times with light pressure before relying on it. These small actions can prevent binding and prolong both key and lock life.
Expect to pay anywhere from a couple of dollars for a basic blank cut at a kiosk to $10–$20 for branded blanks cut at hardware stores. High-security or restricted blanks can run much higher, sometimes $30–$80 or more due to authorization and special manufacturing. To save money, buy blanks in small multipacks from reputable sellers or compare prices across Home Depot, Lowe’s, and online marketplaces. If you need a lot of keys, ask a locksmith for bulk pricing — volume discounts are often available.
Keys are durable, but when they finally reach the end of their life, consider recycling. Many metal recycling centers accept brass and steel keys. Some locksmiths will take old keys and responsibly recycle them for you. Reusing or repurposing old keys for craft projects is another creative way to keep metal out of the landfill.
Here are quick suggestions for real-life situations: if you need a quick spare, use a kiosk or big-box store; if you’re dealing with a commercial building or restricted key, go to a locksmith; for bulk orders and specialty brands, order online from a reputable supplier. These choices balance speed, cost, and the level of security you need.
Key blanks are a small but essential part of home and commercial security. Knowing where to buy them, how to identify the right profile, and when to use a locksmith versus a self-service option will save you time and reduce frustration. From The Home Depot and Lowe’s to kiosks like KeyMe and specialty locksmiths, the US market offers a variety of ways to get the right blank for your project. Take a moment to confirm codes, measure in inches, and choose a trusted supplier — your locks will thank you.
