Gravel

This article is considered accurate for the current version (1.61) of Foxhole.

“	Resource used for building Roads and Foundations.	„
	— In-game description

Gravel is a resource used for building Provisional Roads and Foundations, and as fuel for Construction Equipment.

Acquisition

Structure	Input(s)	Output	Time
Concrete Mixer	100 x Coal	20 x Gravel	00:00:40
Refinery	5 x Coal	1 x Gravel	00:00:01.2

It can be retrieved as crates of 20 from your personal refining queue with the RMB context menu.

It stacks up to 100 per slot in inventories. It can be stored in the stockpiles of Bases (32k max), Resource Containers (5k), Resource Transfer Stations (15k), and Resource Ships (95k).
It can be crated (need stack of 20 per crate) and uncrated with the right click context menu while interfacing a Seaport, Storage Depot, or Shipping Container.
Crates of Gravel can be directly submitted to any item stockpile that accepts that item to transfer their content.The crates can also be stored in the crate stockpiles of Storage Depots (1000 public, 300 per Reserve Stockpile), Seaports (1000 public, 300 per Reserve Stockpile), Shipping Containers (60), or Storage Ships (1000).
It can be transported by almost any vehicle with inventory slots, but is most commonly transported by normal Trucks, Resource Trucks, Small Container Car, Resource Ship, or shipping vehicles carrying Resource Containers. Although it can also be transported as crates by shipping vehicles carrying Shipping Containers, it is much less efficient due to its small crate size.

Wearing an Engineer Uniform reduces the Weight of Gravel in your inventory by 25%.