# 4 layers PCB stackup

**URL:** <https://community.aisler.net/t/4-layers-pcb-stackup/4866>\
**Category:** ℹ️ Q & A Help Zone\
**Tags:** kicad, pcb-design, beautiful-boards\
**Created:** [March 5, 2025, 9:46am UTC](https://community.aisler.net/t/4-layers-pcb-stackup/4866 "2025-03-05T09:46:13Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Sarah-from-AISLER](https://community-cdn.aisler.net/user_avatar/community.aisler.net/sarah-from-aisler/32/2193_2.png) [@Sarah-from-AISLER](https://community.aisler.net/u/Sarah-from-AISLER)\
**Post date:** [September 29, 2026, 1:17pm UTC](https://community.aisler.net/t/4-layers-pcb-stackup/4866/2 "2026-09-29T13:17:18Z")

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Hey @Tynnor,

I’m sorry no one got back to you sooner. I’d still like to answer, since other users might search for the same information: Since you posted, we’ve moved the stackups into their own articles. The one you need is [4 layers 1.6mm 35µm stackup](https://community.aisler.net/t/4-layers-1-6mm-35-m-stackup/5457). There’s a [separate article](https://community.aisler.net/t/4-layers-0-8mm-35-m-stackup/5460) if you were on 0.8 mm.

We don’t publish a loss tangent for pooled production. If your design depends on one, get in touch before you order and we’ll look at what’s possible for you.

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_[View the full topic](https://community.aisler.net/t/4-layers-pcb-stackup/4866)._