Quarterly report pursuant to Section 13 or 15(d)

Cover Page

Cover Page - shares
6 Months Ended
Jun. 30, 2021
Aug. 09, 2021
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Document Quarterly Report true  
Document Transition Report false  
Entity Registrant Name Markforged Holding Corp  
Entity Central Index Key 0001816613  
Entity File Number 001-39453  
Entity Tax Identification Number 98-1545859  
Entity Incorporation, State or Country Code DE  
Entity Shell Company true  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Interactive Data Current Yes  
Entity Address, Address Line One 480 Pleasant Street  
Entity Address, City or Town Watertown  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02472  
City Area Code 866  
Local Phone Number 496-1805  
Entity Current Reporting Status No  
Entity Common Stock, Shares Outstanding   185,251,837
Common Class A [Member]    
Document Information [Line Items]    
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol MKFG  
Security Exchange Name NYSE  
Warrant [Member]    
Document Information [Line Items]    
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one share of Common Stock, $0.0001 par value  
Trading Symbol MKFG.WS  
Security Exchange Name NYSE