v3.25.2
Document and Entity Information
Jul. 24, 2025
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001794546
Current Fiscal Year End Date --12-31
Document Type 8-K
Document Period End Date Jul. 24, 2025
Entity Registrant Name CARLSMED, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-42756
Entity Tax Identification Number 83-1081863
Entity Address, Address Line One 1800 Aston Ave, Suite 100
Entity Address, City or Town Carlsbad
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92008
City Area Code (760)
Local Phone Number 766-1923
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.00001 par value per share
Trading Symbol CARL
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period true