The next evolution of Tension’s flagship hangboard. Combining unmatched comfort, improved design, and the utility of former hangboard models, the Grindstone represents everything Tension has learned about designing and producing single piece hangboards.

The Grindstone is based around an asymmetrical edge layout to ensure equal grip spacing for each edge size to deliver a more consistent training stimulus.

The custom edge profile eliminates the typical pressure points of a standard rounded edge. Making it possible to train 4, 3, 2, or even 1 finger at a time without the need for designated pockets.

• 8mm Edges

• 10mm Edges

• 15mm Edges

• 20mm Edges

• 25mm Edges

• 30mm Edges

• 50mm Edge

• Full Width Top Jug

• Engraved Edge Depths

• Phone Holder

• Comfortable Edge Profile

• Poplar Wood

• 6 Phillips Head Screws Included