Decision Lantern

Home and office calculator

Smart-lock compatibility selector

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People matching a smart lock to door prep. The decision this page isolates is narrow on purpose: translate bore and deadbolt needs into a lock class. Fit and capacity are the expensive mistakes. Settle those before you commit to a finish or a brand.

This page produces an explainable category or size so options can be compared without a product ranking. The calculator does not rank August, Schlage, and Level. It produces an explainable class so August Wi-Fi Smart Lock, Schlage Encode, and Level Lock+ can be compared as examples of that class.

The working method is: Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class. Planning notes are grounded in Amazon eero. This page does not quote a price or rank a brand.

How to use this calculator

People matching a smart lock to door prep. Translate bore and deadbolt needs into a lock class. If you can answer cross-bore inches, this page can produce a class you can shop against.

What this page will not do

  1. Enter the planning inputs

    Choose a lock class by recording cross-bore inches. Use real measurements or counts, not a rounded marketing number.

  2. Mark the constraints that change the class

    Only check want to keep the existing keyed deadbolt when that constraint is actually present. Extra checks can jump the class.

  3. Read the lock class

    Select class and treat the headline as a class, not a product name. Matching examples below follow Retrofit, Keyed, and Full Replace.

  4. Compare official pages, then verify

    Open the official page for each example in that class. Confirm current specifications, dimensions, and terms. Decision Lantern does not quote a live price or complete an install review.

Planning classes on this page

Retrofit
Example: August Wi-Fi Smart Lock, Level Lock+
Keyed
Example: August Wi-Fi Smart Lock, Schlage Encode
Full Replace
Example: Schlage Encode

Choose a lock class

Lock class

Full-replace keyed class

Compare options with at least:

  • 2.125 in bore
  • Confirm backset and door thickness

Example products for Smart-lock compatibility selector

Real products that fit this planning category. Specs come from the manufacturer’s product page. These are examples, not rankings. Product names that go to Amazon are associate links. Decision Lantern may earn a commission at no extra cost to you.

Compare the official examples

The table below is a side-by-side of the official examples on this page. Columns are published facts—maker, planning class, and notes taken from the official page—not scores. August Wi-Fi Smart Lock, Schlage Encode, and Level Lock+ are included so you can see how classes differ, then open the official page for the current specification.

Published facts for the example products on this page. Not a ranking.
ExampleMakerPlanning classesPublished notesOfficial page
August Wi-Fi Smart LockAugustRetrofit, KeyedRetrofit interior; Keeps keyed deadboltAugust Wi-Fi Smart Lock official page
Schlage EncodeSchlageFull Replace, KeyedWi-Fi deadbolt; Replace existingSchlage Encode official page
Level Lock+LevelRetrofitInvisible retrofit; Apple HomeLevel Lock+ official page

Which example fits which class

August Wi-Fi Smart Lock

August

August Wi-Fi Smart Lock from August is an example in the Retrofit and Keyed class. Published notes on the official page include Retrofit interior and Keeps keyed deadbolt. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

Schlage Encode

Schlage

Schlage Encode from Schlage is an example in the Full Replace and Keyed class. Published notes on the official page include Wi-Fi deadbolt and Replace existing. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

Level Lock+

Level

Level Lock+ from Level is an example in the Retrofit class. Published notes on the official page include Invisible retrofit and Apple Home. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

What to verify before you buy

How this estimate works

Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class.

Know the limits

  • This page does not quote a price or rank a brand.
  • Manufacturer specifications and program terms can change and must be verified on official pages.
  • The result is a planning category, not a safety, medical, legal, or install guarantee.

Frequently asked questions

How does the smart-lock compatibility selector work?

It converts cross-bore inches into a planning class using a published rule. Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class. The headline is a class such as Retrofit, Keyed, and Full Replace, not a vendor ranking.

Is August Wi-Fi Smart Lock better than Schlage Encode?

This page does not rank August Wi-Fi Smart Lock, Schlage Encode, and Level Lock+. August Wi-Fi Smart Lock and Schlage Encode are listed because they are real products with official pages that map to different or overlapping classes. The useful question is which class matches your inputs.

Can I treat the result as a buying recommendation?

This page does not quote a price or rank a brand. Use the class to decide what to read next, then verify fit, terms, and installation requirements on the official page and with a qualified installer when the product needs one.

Do the product links earn Decision Lantern a commission?

Not on the current preview. Links go to official manufacturer or service pages. If compensated links are added later, the disclosure on this page will say so in plain language.

What should I verify after I get a class?

Confirm the current specification, dimensions or plan limits, and any program terms on the official page. Manufacturer specifications and program terms can change and must be verified on official pages. The next editorial review for this page is due 2026-11-14.

Why these 3 examples?

They are real home and office options with an affiliate program on file and an official product page. August, Schlage, and Level appear because each one can represent at least one planning class on this page, not because Decision Lantern tested or endorsed them.

Sources

  1. eero coverage and mesh system guidance, Amazon eero. Retrieved .

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