v3.26.1

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2026	May 26, 2026
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2026
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2026
Current Fiscal Year End Date	--12-31
Entity File Number	001-42962
Entity Registrant Name	HALL CHADWICK ACQUISITION CORP.
Entity Central Index Key	0002079013
Entity Tax Identification Number	98-1830736
Entity Incorporation, State or Country Code	E9
Entity Address, Address Line One	1 North Bridge Road
Entity Address, Address Line Two	#18-06 High Street Centre
Entity Address, City or Town	Singapore
Entity Address, Country	SG
Entity Address, Postal Zip Code	179094
City Area Code	+65
Local Phone Number	9088 2642
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false
Entity Shell Company	true
Units, each consisting of one Class A ordinary share and one share right
Title of 12(b) Security	Units, each consisting of one Class A ordinary share and one share right
Trading Symbol	HCACU
Security Exchange Name	NASDAQ
Class A ordinary shares, par value $0.0001 per share
Title of 12(b) Security	Class A ordinary shares, par value $0.0001 per share
Trading Symbol	HCAC
Security Exchange Name	NASDAQ
Share Rights, each right entitling the holder to receive one tenth (1/10) of a Class A ordinary share
Title of 12(b) Security	Share Rights, each right entitling the holder to receive one tenth (1/10) of a Class A ordinary share
Trading Symbol	HACAR
Security Exchange Name	NASDAQ
Class A Ordinary Shares [Member]
Entity Common Stock, Shares Outstanding		21,314,000
Class B Ordinary Shares [Member]
Entity Common Stock, Shares Outstanding		7,886,293

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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Hall Chadwick Acquisition Corp 10-Q