Metolius Project Board vs Tension Grindstone MK2
We compare the Metolius Project Board and Tension Grindstone MK2 head-to-head on performance, features, value, and more. Here's which one wins.
Metolius Project Board
Scored 8.7/10 in our testing
Metolius Project Board
Climbers of all levels who want holds they can rearrange
Tension Grindstone MK2
Boulderers focused on max finger strength gains
Score Breakdown
| Metolius Project Board | Category | Tension Grindstone MK2 |
|---|---|---|
| 8/10 | Performance | ✓ 9/10 |
| 10/10 ✓ | Features | 8/10 |
| 7/10 | Ease of Use | 7/10 |
| 9/10 ✓ | Value | 8/10 |
| 8.7/10 ✓ | Overall | 8.5/10 |
Specs Comparison
| Metolius Project Board | Spec | Tension Grindstone MK2 |
|---|---|---|
| Polyester resin | Material | Polyurethane |
| 30 bolt-on holds included | Holds | Edges, pockets, pinch |
| Modular bolt-on | System | 6mm-20mm |
| 48" x 12" main board | Board | Pinch training rails |
Metolius Project Board
Pros
- + 30 modular holds can be rearranged endlessly
- + Grows with the climber from beginner to advanced
- + Resin holds simulate outdoor rock texture
Cons
- − Resin is rougher on skin than wood boards
- − Requires more wall space than compact hangboards
- − Setting up hold configurations takes time
Tension Grindstone MK2
Pros
- + Integrated pinch rails unique to this design
- + Focused hold selection for maximum strength gains
- + Polyurethane balances friction and skin comfort
Cons
- − Limited jug holds for warming up
- − Steep learning curve for beginners
- − Pricey for a compact hangboard
Our Verdict
Based on our scoring, the Metolius Project Board comes out on top with an overall score of 8.7/10. The Metolius Project Board takes a modular approach with 30 bolt-on holds that you can rearrange to create custom configurations. This means the board grows with you: start with jugs and gradually swap in smaller holds as you get stronger. The resin holds simulate real rock texture.
Buy the Metolius Project Board on AmazonRead the full Best Hangboard Training Boards 2026 guide for complete reviews of all 3 products.