New practitioners often spend more time agonising over copper versus steel than over 8mm versus 10mm. This is exactly backwards. For beginners, spacing matters far more than material. The honest reason is simple: spacing fundamentally changes the practice. Material changes only the texture of the experience. Here is the case in detail.
What Changes Between Spacings
Move from 8mm to 10mm and you have changed the force per nail by a meaningful amount. The number of contact points has dropped substantially. The mental experience of standing is noticeably different. The breath required to settle is longer. The session you can comfortably do drops in duration. The whole practice shifts.
Move from 10mm to 20mm and the change is dramatic. Force per nail multiplies. The practice becomes a different discipline. Sessions shorten. Preparation lengthens. The risk of misjudging your readiness increases significantly.
Spacing is the dial that sets the difficulty of the practice. Nothing else on the board comes close.
What Changes Between Materials
Move from copper to steel at the same spacing and the practice itself does not change. The duration of comfortable sessions is the same. The breath pattern is the same. The progression over months is the same.
What changes is the texture: a slight difference in initial coolness, a slight difference in how the sensation distributes across the foot, a difference in the patina the board develops over years, a difference in the maintenance habits you fall into.
These are real differences. They matter to long-term practitioners. They are not the right thing to obsess over before your first board.
Why Beginners Get This Backwards
The marketing of sadhu boards often leads with material. Copper has a romantic story attached: ancient tradition, conductive properties, warm patina. Steel has a modern story: precision, durability, polished tips. Both stories are interesting. Neither story is what a beginner needs to hear first.
What a beginner needs to hear is: choose 8mm spacing for your first board, regardless of material. The first six months of practice are about meeting the practice itself, not about the metallurgy.
An Honest Allocation of Decision Energy
If you have one hour to choose a board, spend it like this:
- Forty minutes on spacing (8mm vs 10mm) and the maker's reputation
- Ten minutes on overall size and shape suitable for your body and home
- Five minutes on wood species and finish
- Five minutes on material (copper vs steel)
Most prospective buyers reverse this allocation. They spend an hour on material and a few minutes on spacing. The result is sometimes a beautifully made 20mm copper board sitting in a beginner's apartment, unused, because the practice on it is too sharp for current readiness.
Spacing Is About the Practice You Will Have
Choose 8mm and you will probably practice daily for the first three months. The sessions will be manageable. The progression will be encouraging.
Choose 20mm and you may struggle to use the board at all in the first month. The discouragement compounds. Many of these boards end up sold second-hand within a year.
The right spacing is the one that gets used. For almost every new practitioner, that is 8mm.
Material Is About the Board You Will Love
Once spacing is set, material becomes a question of aesthetic and preference. Do you want a board that ages with a copper patina, in keeping with older tradition? Or a board that holds a bright polished surface, in keeping with modern craft? Either answer is right.
The decision can rest on something as simple as which board you find more beautiful. The practice will be largely the same.
What Eugene Tells First-Time Buyers
Eugene Oliynyk, who has practiced daily since 2018 on every level including 20mm, advises first-time buyers from our Kostopil workshop in a consistent way. Get the spacing right first. Get 8mm if you have any doubt. Then choose the material that calls to you visually. If you cannot decide between copper and steel, the small price difference probably points you to one or the other naturally.
He has never seen a buyer regret choosing 8mm. He has seen many buyers regret choosing too wide a spacing because someone told them it was more 'serious'.
The Long View
Over a decade of practice, you will probably own one or two boards. If you choose well, you may own just one. The spacing on that board will define what daily practice feels like for those ten years. The material will mostly affect how the board looks and ages.
Spacing is the practice. Material is the relationship with the object. Both matter. They do not matter equally.
A Note on Wood
The wood species and quality of the board sit between spacing and nail material in importance. A well-made hardwood board feels stable and looks beautiful. A poorly made plywood board feels unstable and looks shoddy. The difference is more meaningful than the difference between copper and steel.
If you have a choice, prioritise build quality and wood selection over nail material.
Looking at Boards
For boards with spacing options and material options clearly labelled and described, see our balance boards collection. The about page explains how each board is built, and the full catalogue shows the complete METADESK range.
If you are unsure which spacing fits your current life and practice, write to us. We answer board-choice questions personally. Eugene has answered hundreds of these emails over the years and prefers an honest match to a quick sale.
One Honest Closing
Spacing decides what practice you will have. Material decides what board you will love. Beginners should put almost all of their decision energy into spacing, choose the right material in a few minutes, and then begin practicing. The practice itself, repeated daily for years, will teach more than any pre-purchase research ever can.
About the author. This piece was written by Eugene Oliynyk, founder of METADESK, together with the workshop team in Kostopil, Ukraine. Eugene has practiced daily on sadhu boards since 2018, including the most advanced 20Â mm nail-spacing boards. METADESK has been handcrafting wooden wellness tools since 2016. Reach the team at metadeskukraine@gmail.com.