Parts Guide

Mechanical Keyboard Parts List

Last Updated: July 2026 · 1,700-word complete reference · 10 min read

Every component you need for a custom mechanical keyboard build, explained in detail. What each part does, what to look for, how much it costs, and exactly how many you need.

Table of Contents
  1. The Complete Parts List at a Glance
  2. Case
  3. PCB
  4. Plate
  5. Switches + Quantity Calculator
  6. Keycaps
  7. Stabilizers
  8. Lube
  9. Foam Mods
  10. Tools
  11. Total Cost Estimate by Tier
  12. FAQ

1. The Complete Parts List at a Glance

PartRequired?Budget RangeNotes
Case✅ Required$40–$300+Defines sound signature + typing feel
PCB✅ Required$35–$90Sometimes included with case kits
PlateRecommended$15–$60Some builds go plateless
Switches✅ Required$18–$120Quantity varies by layout
Keycaps✅ Required$35–$200+PBT budget to GMK endgame
Stabilizers✅ Required$12–$30Full set for all large keys
Switch LubeStrongly recommended$10–$18205g0 for linears, 3203/3204 for tactiles
Stab Lube✅ Required$8–$12Dielectric grease for wire
Case FoamOptional$3–$15Usually included in kit; DIY is cheap
PCB Foam / PE FoamOptional but impactful$2–$8The tempest mod — biggest free upgrade
Switch pullerRequired (hotswap)$5–$10Metal wire style, not the included plastic clip
Keycap pullerRecommended$5–$8Wire style preferred over ring puller
Lube stationOptional$12–$20Speeds up lubing dramatically
PaintbrushRequired for lubing$3–$6#0 or #00 art brush from a craft store
Screwdriver✅ Required$5–$15Small Phillips (#0) for case screws

2. Case

🏠 Case
Required
Budget range$40–$300+

The case houses everything. It's the largest single factor in how a keyboard sounds and feels — the material, weight, and mount style all dramatically affect the typing experience.

Mount Styles

Materials

3. PCB (Printed Circuit Board)

🔌 PCB
Required
Budget range$35–$90

The PCB is the brain of the keyboard — it registers keypresses and sends signals to the computer via USB or Bluetooth. Key decisions:

Hotswap vs. Solder

Connectivity

Firmware

Confirm QMK support before buying any enthusiast PCB. VIA compatibility means real-time remapping without flashing. ZMK is an alternative for wireless builds. Most PCBs ship with QMK pre-flashed.

Popular Beginner PCBs

DZ65RGB (65% hotswap), BM60 (60% hotswap), KBD67 Lite (65% gasket hotswap). All run QMK, all VIA-compatible. The KBD67 Lite is the community's current beginner recommendation for 65% builds.

4. Plate

🪨 Plate
Recommended
Budget range$15–$60

The plate sits between the PCB and switches, aligning switch positions and influencing sound. Plate material is a major sound-shaping variable:

MaterialStiffnessSoundWeightCost
AluminumVery stiffBright, clackyHeavyLow–Mid
BrassVery stiffDeep, thockyVery heavyMid
Polycarbonate (PC)FlexibleDeep, mutedLightLow–Mid
FR4 (Fiberglass)Slightly flexibleNeutralLightLow
Carbon FiberVery stiffCrisp, uniqueVery lightHigh
POM (Polyoxymethylene)Slightly flexibleWarm, mutedMidMid

Beginner recommendation: Start with whatever plate comes with your case kit. Then experiment — most mid-range boards sell alternative plate materials separately. A brass plate swap on a budget board is one of the best-value upgrades in the hobby.

5. Switches + Quantity Calculator

Switches Needed by Layout
40%
~47
Buy 55+
60%
61
Buy 70+
65%
68
Buy 75+
75%
84
Buy 90+
TKL 80%
87
Buy 95+
Full 100%
104
Buy 110+

Always order 5–10% extra switches. On hotswap boards you'll inevitably bent a few pins. On solder boards, one bridge can kill a switch. Having spares means no project delays.

See the full switch types guide and the KeebTracker switch database to compare options and check current pricing.

6. Keycaps

⌨️ Keycaps
Required
Budget range$35–$200+

Keycap selection covers profile, material, and legend type. See the complete Keycap Profiles Guide for the full breakdown.

Layout Compatibility Check

Before purchasing any keycap set, verify it includes keys for your specific layout. Many budget sets only cover standard sizes — if your board has a 1.75u right shift, a 7u spacebar, or ISO enter, confirm the kit has them before ordering.

7. Stabilizers

⚖️ Stabilizers
Required
Budget range$12–$30

Stabilizers prevent large keys (spacebar, left shift, enter, backspace) from tilting when pressed off-center. They're the most under-appreciated component in most builds — and the most likely to ruin the experience if neglected.

Types

How Many You Need (65% example)

Most full stab sets include all of the above. Check if your specific layout uses additional 2u stabs on the number row.

The Holee Mod (Do This)

Punch a small circle from a band-aid and place it on the PCB under each stab mount point. This adds a tiny pad that eliminates bottom-out rattle. Takes 5 minutes. Eliminates one of the most common sources of noise in budget builds. Do it on every build, every time.

8. Lube

Krytox 205g0
Linear switches + stab housing

The community's go-to for linears. Thick grease. Produces buttery, smooth feel. Do NOT use on tactile legs.

Tribosys 3203 / 3204
Tactile switches

Thinner than 205g0. 3203 is lighter (more bump preserved), 3204 heavier. Apply to rails + stem, never tactile legs.

Dielectric Grease
Stabilizer wire only

Super Lube or any dielectric grease. Apply heavily to stab wire contact points. The primary rattle cure.

A 3ml jar of Krytox 205g0 is enough for 3–4 full keyboard builds. Buy once and you're set. Cost: $10–$15 from NovelKeys, KBDfans, or 1upkeyboards.

9. Foam Mods

Foam mods are entirely optional but deliver outsized results relative to their cost. Most premium kits include some foam; budget kits often skip it.

10. Tools You'll Need

ToolRequired?CostNotes
Small Phillips screwdriver (#0)✅ Required$5–$15For case screws. iFixit kit covers all sizes.
Switch puller (wire style)✅ For hotswap$5–$8Metal wire style only — the plastic clip puller damages sockets.
Keycap puller (wire style)Strongly recommended$5–$8Ring-style keycap pullers scratch legends — use wire.
Paintbrush (#0 or #00)✅ For lubing$3–$6Art brush from a craft store. Cheap and effective.
Lube stationRecommended$12–$20Holds 12–16 switch housings open simultaneously. Huge time-saver.
TweezersRecommended$5–$10For PCB testing (shorting switch sockets) and handling small parts.
Soldering ironFor solder PCBs only$30–$80Hakko FX-888D or Pinecil if you're serious. Cheap irons cause frustration.
Desoldering pump / wickFor solder fixes$8–$15Essential if soldering. Mistakes happen.
Band-aidsFor holee mod$0 (you have these)Punch circles for stab holee mod.

11. Total Cost Estimate by Tier

PartBudget Build (~$100)Mid-Range (~$320)Endgame (~$700+)
Case + PCBKeychron Q2 base ($55) or KBD67 Lite ($49)KBDfans Tofu65 ($120) + DZ65RGB ($45)Premium GB aluminum case ($280+) + Geon F1-8X ($85)
PlateIncluded with casePC or brass alternate ($25)Brass or carbon fiber ($40–$60)
Switches ×70Gateron Yellow ($18)Boba U4T ($38) or Tangerine ($55)Holy Panda X ($70) or Topre ($included)
KeycapsAkko PBT Cherry ($35)ePBT Simple ($65) or KAT Milkshake ($80)GMK GB set ($150–$200)
StabilizersDurock v2 ($12)TX stabs ($18)Everglide Panda ($28)
Lube kit205g0 + dielectric ($15)Same ($15)Same ($15)
Foam + tools$5 (PE foam only)$15 (foam kit + lube station)$20 (everything)
Total~$100–$130~$280–$360~$650–$800+

Use the KeebTracker Build Cost Calculator to price your specific parts selection before you buy. The stock tracker shows current availability at major vendors — check it before ordering anything you haven't confirmed is in stock.

Budget Build Wisdom

The budget-to-experience ratio is brutal in this hobby. A $120 build lubed with 205g0 and the PE foam mod will out-feel most $250 gaming peripherals. The endgame budget buys marginality, not magic. Start small, learn your preferences, then upgrade deliberately.

Frequently Asked Questions

What parts do I need to build a mechanical keyboard?
The essential parts are: a case, a PCB, a plate (optional but common), switches, keycaps, and stabilizers. You'll also need lube for switches and stabilizers. Recommended additions: PE foam (tempest mod), a switch puller, a small paintbrush, and a Phillips screwdriver.
How many switches do I need for a 65% keyboard?
A standard 65% keyboard uses 68 switches. A TKL (80%) uses 87. A 60% uses 61. A full-size (100%) uses 104. Always order 5–10 extra switches to account for defects and future hotswap experimentation.
What is the difference between a tray mount and gasket mount case?
In a tray mount case, the PCB screws directly into the case floor — creating a rigid, stiff typing feel with a brighter, sharper sound. In a gasket mount case, the PCB sits in silicone or foam gaskets that absorb impact, giving a flexible, softer typing feel and a deeper, more muted sound. Gasket mount is generally preferred for its superior typing feel.
What plate material should I choose?
For a first build: aluminum plate is the safe choice — stiff, compatible, predictable sound. For a softer feel: polycarbonate (PC) plate adds noticeable flex. Brass plate adds weight and a deeper thock but makes the board heavier. FR4 is a neutral mid-range option.
What is the difference between a solder and hotswap PCB?
A hotswap PCB has pre-installed sockets that allow switches to be pushed in and pulled out without soldering. A solder PCB requires permanently soldering each switch pin. Hotswap is easier for beginners and allows switch experimentation. Solder is more stable and offers more PCB options.
What tools do I need to build a mechanical keyboard?
Essential: a small Phillips screwdriver, a switch puller (for hotswap), and tweezers. Recommended: a lube station, a small paintbrush, and a ziplock bag (for spring bag-lubing). Optional: a soldering iron + solder (for solder PCBs), desoldering pump, keycap puller.
How much does it cost to build a 65% keyboard?
Budget 65% build: $80–$130. Mid-range: $250–$380. Endgame: $500–$800+. The largest cost variables are the case and keycaps — both scale dramatically between budget and enthusiast tiers.
What is Krytox 205g0 and do I need it?
Krytox 205g0 is a thick grease lube used on linear switches and stabilizer housings. It is the community standard for linear switch lubing — it produces a smooth, buttery feel and significantly reduces switch noise. Yes, you need it for any linear switch build. For tactile switches, use Tribosys 3203 or 3204 instead.