v3.25.2
Cover
Jun. 18, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 18, 2025
Entity File Number 001-37784
Entity Registrant Name GMS INC.
Entity Central Index Key 0001600438
Entity Tax Identification Number 46-2931287
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 100 Crescent Centre Parkway
Entity Address, Address Line Two Suite 800
Entity Address, City or Town Tucker
Entity Address, State or Province GA
Entity Address, Postal Zip Code 30084
City Area Code 800
Local Phone Number 392-4619
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol GMS
Security Exchange Name NYSE
Entity Emerging Growth Company false