Coinkite SEEDPLATE 24
Center-punch stainless steel plate for a 24-word BIP39 seed.
Overview
The Coinkite SEEDPLATE 24 is a no-frills stainless steel backup from Coinkite. It's a flat plate pre-marked with the BIP39 wordlist, sized specifically for a full 24-word seed, which you encode by centre-punching dots next to the correct letters. It carries the same design philosophy as Coinkite's wallets: simple, robust and Bitcoin-focused, with no moving parts to fail.
As a punch-based plate, its strengths are durability and simplicity. The stainless steel is fireproof and waterproof, punched marks can't smudge or fade, and there are no loose tiles to fall out or reorder. Because it comes from Coinkite, it fits any standard BIP39 backup workflow. The trade-offs are the familiar ones for punch plates: marking is permanent so mistakes are costly, and recovering your seed later means reading dot positions against the printed grid rather than reading plain words.
Buy it if you want a solid, reputable, punch-style steel plate built for a 24-word seed. If you use a 12-word seed you may prefer a plate sized for that, and if you want to read your seed back as spelled-out words, a tile or stamped-letter design will suit you better.
Key features
- Stainless steel plate from Coinkite
- Sized and marked for a full 24-word BIP39 seed
- Centre-punch dot marking — permanent and smudge-proof
- Fireproof and waterproof solid-plate construction
- Works with any standard BIP39 self-custody setup
- No tiles or moving parts to lose
- Simple, minimalist Bitcoin-focused design
Specs
- material Stainless steel
- method Center punch
Who it’s for
Anyone who wants a simple, no-frills steel seed backup.
Coinkite SEEDPLATE 24: frequently asked questions
Does it work with a 12-word seed?
It's designed around a 24-word layout. A 12-word seed can be recorded, but a plate sized for 12 words may be a tidier fit.
What tool do I need?
A centre punch to mark the dots. Any standard automatic centre punch works.
Does it work with any wallet?
Yes. It stores any standard 24-word BIP39 seed.
Can I edit it later?
No. Punched marks are permanent, so verify each letter before punching.
More in Steel Backups
Cryptosteel Capsule Solo
The original stainless tile capsule, fireproof to ~1400°C. An independent brand — not a Ledger product.
Blockplate (12/24)
One-punch marking on a single thick steel plate — the cheapest credible backup.
Stamp Seed Kit
Hand-stamp your seed into titanium or steel with a full punch kit. Maximum durability, more effort.