FW12 Bottom Cover Cracking

Summary

Early production Framework Laptop 12 units can develop cracks in the ABS plastic bottom cover (and in some cases the top cover / display housing) around screw bosses, hinges, and expansion card slot corners. The cracks can appear within days or weeks of normal use — even without disassembly or rough handling¹²³. Framework confirmed the issue in a September 2025 official announcement, citing two contributing factors: injection molding material/process parameters and the internal geometry of the bottom cover⁴.

Symptoms

• Hairline cracks radiating outward from screw bosses on the bottom cover¹³
• Cracks near the hinge mounting points on both the bottom cover and the top cover / display housing¹³
• Cracks at expansion card slot corners³
• Visible separation or raised/ridged plastic that can be felt with a fingernail¹³
• Discoloration or stress marks (lighter lines) on the plastic surface around fasteners¹
• Cracks may initially appear as faint lines and worsen over time with continued use¹³

Affected Models

• Framework Laptop 12 (13th Gen Intel, 2025) — early production batches (approximately manufactured before week 50 of 2025)¹⁴⁵
• All colorways have been reported as affected: Black, Gray, Sage, Lavender¹³⁶

Root Cause

Framework's official investigation identified two contributing factors⁴:

• Injection molding material and process parameters — The input material and molding parameters used by the plastic parts supplier contributed to weakened ABS plastic around stress concentration points (screw bosses, corners). Light-colored ABS (gray, lavender, white) may be more susceptible due to higher pigment content altering material properties¹⁷.
• Bottom cover internal geometry — The design of the inside of the bottom cover created areas where stress concentrated around screws and corners. Framework implemented a minor tooling modification to reduce cracking risk⁴.

Users confirmed that cracks appear even without over-tightening screws — some cracks developed during normal use without ever removing the screws¹³⁶. However, Framework also noted that over-tightening fasteners with a full-size screwdriver or excessive force can contribute to cracking⁴.

Diagnosis

1. Inspect all screw locations on the bottom cover with good lighting. Look for hairline cracks radiating outward from the screw heads or discoloration/stress lines¹³.
2. Check hinge areas on both the bottom cover and top cover for cracks or raised plastic¹³.
3. Run a fingernail across suspected marks — if you can feel a ridge or separation, it is likely a crack rather than a mold marking¹³.
4. Loosen the nearest screw slightly — if the crack appears to close up, it confirms screw-tension involvement⁶.
5. Check the manufacturing date printed on the bottom cover — covers manufactured before approximately week 50 of 2025 are from the pre-fix production run⁵.

Workarounds & Fixes

Solution	Effectiveness	Notes
Contact Framework Support for replacement4	Permanent (with redesigned cover)	Framework provides replacement bottom covers under warranty. Request a cover manufactured after week 50 of 2025 to ensure you receive the redesigned version45
Finger-tighten screws only4	Mitigation	Framework recommends using only the included screwdriver held between index finger and thumb — stop when resistance is felt
Loosen existing screws slightly6	Temporary mitigation	May slow crack propagation by reducing ongoing stress
Wait for redesigned cover (if holding off)4	Permanent	Some users chose to wait for the new-production covers rather than receive another pre-fix replacement4

Resolution

Framework implemented two fixes in late 2025⁴:

1. Process improvements — Refined injection molding parameters in coordination with the plastic parts supplier.
2. Tooling modification — A minor redesign of the internal geometry of the bottom cover to reduce stress concentration.
3. Additional quality checks — Added inspections at both the plastic parts supplier and Framework's final assembly line.

Users experiencing cracking should contact Framework Support with photos of the affected areas. Framework will provide a replacement bottom cover under warranty⁴. Users can request that support verify the replacement cover is from the new production run (manufactured after week 50 of 2025)⁵. In some cases, Framework has offered full laptop replacements, particularly when both top and bottom covers are affected⁸.

Related

• [TRACKING] FW12 cracking issue — Framework Community (1030+ replies)
• Important Update:: Framework Laptop 12 — Framework Community (official announcement)
• Framework Laptop 12 Bottom Cover Replacement — iFixit
• First-time buyer's experience fixing a cracked FW12 — Reddit
• New Framework 12 Bottom Cover Cracking again — Reddit

Footnotes

1. [TRACKING] FW12 cracking issue — Framework Community ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³

2. FW12 cracking issue and ordering a DIY machine — Framework Community ↩

3. [TRACKING] FW12 cracking issue — Framework Community (multiple user reports with photos) ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹

4. Important Update:: Framework Laptop 12 — Framework Community ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹²

5. New Framework 12 Bottom Cover Cracking again — Reddit ↩ ↩² ↩³ ↩⁴

6. [TRACKING] FW12 cracking issue (screw tension confirmation) — Framework Community ↩ ↩² ↩³ ↩⁴

7. FW12 Weak hinges — Framework Community ↩

8. First-time buyer's experience fixing a cracked FW12 — Reddit ↩