I believe 4 c4 for armored from the outside, 2 on the inside. Notes [edit | edit source] A maximum of 50 C4 Charges can be placed at any given time. is that so? save hide report. share. I think they used to burn like paper from C4. 60% Upvoted. A guide how much damage C4's takes in Rust. ... Did they buff Sheetmetal? Timed Explosive Charges are not to be confused with Explosives. —Information accurate as of: build 904.83. 2 for stone on the outside, 1~ on the inside. 5 comments. ** IEDs are currently just about impossible to place on stone or metal. My knowledge is a bit rusty, haven't played vanilla in forever. But now apparently they are all around better than Stone? New comments cannot be posted and votes cannot be cast. This thread is archived. Metal doors can be destroyed with exactly 2 C4 Charges. The Timed Explosive Charge (commonly referred to as "C4") is a craftable explosive weapon that can be thrown onto walls, doors, or deployable items. Also, can explosives be used by themselves or do I need to make it into c4? When more than 50 charges are placed, any additional charges will cause the oldest to disappear. Once a Timed Explosive Charge has been thrown, it will automatically arm itself and then detonate after 10 seconds. How many C4 (timed explosive) does it take to blow down a stone wall or a metal door? 1~ for everything else.