A flat-section form stake
A driven flat-section stake for temporary concrete formwork.

Stakes & pins
Flat Stakes / C-mouth Stakes are driven stakes with a flat section that sits against form boards. The flat face distributes pressure and resists board rotation during concrete placement.
At a glance
A driven flat-section stake for temporary concrete formwork.
The flat section sits against the form board while the point enters the ground.
Flat section 1-1/2 x 3/8 inch; lengths from 12 to 56 inches; pointed or spade end; plain or coated finish.
Also known as
Align the flat face to the form board and drive the pointed end into the ground. The flat section distributes load and prevents board rotation.
Common applications
Backs timber boards and resists lateral movement during setup and pouring.
Anchors temporary edge boards where ground conditions require flat bearing contact.
The flat section prevents board spin and maintains form alignment through concrete placement.
The flat bearing face resists board rotation at slab and footing edges. Round, Rebar and Square Stakes provide alternative profiles; Formwork Pins handle holed or pin-driven installations.
Explore concrete systems ↗Flat Stakes / C-mouth Stakes specifications
Concrete & Construction