Quarterly report pursuant to Section 13 or 15(d)

Cover Page

Cover Page - shares
9 Months Ended
Sep. 30, 2021
Nov. 15, 2021
Document Type 10-Q  
Amendment Flag false  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31  
Entity Registrant Name Markforged Holding Corporation  
Entity Current Reporting Status Yes  
Entity Central Index Key 0001816613  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Local Phone Number 496-1805  
Entity File Number 001-39453  
City Area Code (866)  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Shell Company false  
Entity Ex Transition Period false  
Document Period End Date Sep. 30, 2021  
Document Quarterly Report true  
Document Transition Report false  
Entity Incorporation, State or Country Code DE  
Entity Address, State or Province MA  
Entity Tax Identification Number 98-1545859  
Entity Address, Address Line One 480 Pleasant Street  
Entity Address, City or Town Watertown  
Entity Address, Postal Zip Code 02472  
Entity Common Stock, Shares Outstanding   185,851,079
Common Class A [Member]    
Security Exchange Name NYSE  
Trading Symbol MKFG  
Title of 12(b) Security Common stock, par value $0.0001 per share  
Warrant [Member]    
Security Exchange Name NYSE  
Trading Symbol MKFG.WS  
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Common Stock, $0.0001 par value