Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2025	May 13, 2025
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Mar. 31, 2025
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Entity Registrant Name	JFB CONSTRUCTION HOLDINGS
Entity Central Index Key	0002024306
Entity File Number	001-42538
Entity Tax Identification Number	99-2549040
Entity Incorporation, State or Country Code	NV
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Address, Address Line One	1300 S. Dixie Highway
Entity Address, Address Line Two	Suite B
Entity Address, City or Town	Lantana
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33462
City Area Code	561
Local Phone Number	582-9840
Title of 12(b) Security	Class A Common Stock, par value $0.0001per share
Trading Symbol	JFB
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		5,250,000