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Blockplate 12

Blockplate 12

12 Word Seed Phrase Storage

Regular price $59.00
Regular price $59.00 Sale price $59.00
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Stores up to 12 words (6 words on each side). 


(Qty 1) Blockplate 12
(Qty 2) Blockplate 12 Letter Locators


3.5" x 3.2" x 0.1" (88 mm x 82 mm x 2.8 mm)


5.2 oz per plate (147 g)


12 Gauge, 304 Stainless Steel


BIP39 24 Word Mnemonic Seed Phrase

Note: Value-added taxes (VAT) and/or custom duties are not included and are the responsibility of the buyer.

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  • Thick, Heavy Duty Stainless Steel

    US Manufacturer — Precision Laser Cut & Engraved. Polished Finish.

  • Fire and Heat Protection

    Withstand up to 2100 °F — well beyond an average house fire (~1100 °F)

  • Water and Corrosion Resistance

    Protection against moisture, chemicals, and harsh conditions.

Customer Reviews

Based on 24 reviews
William Goodin
Great product

I was very impressed with the quality of Blockplate. It is much thicker than similar products and the letter template sticker was a nice touch. I highly recommend!

Tony Jenkins

Simple and ingenious. Highly recommend the Blockplate.


After doing a LOT of research, I chose Blockplate. The plate is thick and highly durable and the alphabet sticker/guide makes the punch process simple to execute. I ordered the punch tool as well and can report that it worked as promised and was very easy to maneuver. The products were well packaged and shipping was super fast.

Impressed with Blockplate

I purchased the Blockplate 12. It seems well-designed and high quality. The product was shipped in a discreet, slim package and fit in a small mailbox along with other mail. I researched before purchasing and would rather spend more on good quality, especially for something like this. You can find comparison reviews, including stress testng (blowtorching, etc.) Pleased with purchase and would definitely buy again from this company.

Excellent concept and execution

Brilliantly simple and functional.

Getting Started: Blockplate 12

Step 1

Peel your letter locator template guide from it's backing and stick it on your Blockplate.

Position the template as so the letters fall inside each box.

Step 2

With a marker, place a dot in each box for the first 4 letters of each word in your seed phrase (for 3 letter words, leave the last space blank/empty). Why only the first 4 letters? 

Double check each letter and word.

Using an Automatic Center Punch

In the next step, you will be using an automatic center punch to make a physical, permanent holes on your Blockplate.

To use, place the tip at the first marking where you want to make a hole. Press and hold the handle down firmly with increasing pressure until you hear an audible "click" (unmute video audio for sound). It should feel like you're compressing a spring until you feel a "pop".

We recommend picking up a center punch from your local hardware store or an online marketplace (paid link). 

Step 3

Using an automatic center punch, punch down at each marking.

This will make a physical and permanent indentation that will show up within each box.

Step 4

Peel the template off to reveal your seed phrase physically (and permanently) marked on steel.

Securely discard your used template. Repeat on the backside with your remaining words.