Most people choose a river table by looking at the resin. That is understandable – the channel is the part that catches the eye. But the resin is the same material in every piece we make. The wood is what changes, and it is what you will be looking at for the next thirty years.
Choose the resin and you choose an effect. Choose the wood and you choose the piece.
Four species cover almost everything we build. Each behaves differently under clear resin, and the difference is not subtle once the surface is polished.
Walnut
Deep chocolate brown with purple and grey undertones, and the most dramatic contrast against a clear channel. Walnut has a flowing, slightly wavy grain that reads as movement rather than pattern, and its live edges tend to be generous and irregular.
It is the species that makes a room feel warm and closed-in, in the good sense. Under crystal-clear resin the contrast is at its strongest – the eye reads a dark landmass split by water. If you want a table that dominates quietly, this is the one.
One honest caveat: walnut lightens over years of daylight exposure. It does not ruin anything, but a piece in a bright room will be perceptibly warmer and softer in tone after a decade.
Oak
Pale gold to warm honey, very hard, and the most structurally forgiving of the four. Oak’s signature is its open grain and the medullary rays – the pale flecks that appear when a slab is cut through the radial plane and that no other species reproduces.
Its hardness matters practically: oak resists denting better than the others, which makes it the sensible choice for a dining table in a busy household or a bar surface in a working venue.
Because oak is light, the contrast with a clear channel is gentler. That is a feature, not a compromise – it produces a calmer, more architectural surface. If you want the contrast back, a lightly tinted resin does it without touching the wood.
Elm
The wild one. Elm has interlocking, almost chaotic grain that swirls rather than runs, and it produces the widest and most irregular live edges of any species we use. Colour sits between oak and walnut – a mid brown, often with reddish or olive streaks in the same slab.
Elm is the species to choose when you want the wood, not the resin, to be the event. A single elm slab can carry so much figure that a clear, quiet channel is the only sensible thing to put next to it.
It is moderately hard – fine for a coffee table or a desk, and perfectly usable for dining, though oak is tougher.
Ash
The palest of the four, close to cream with a straight, even grain and occasional darker heartwood streaks. Ash is tough and slightly flexible, which is why it has been used for tool handles for centuries.
Its evenness is the point. Ash produces the most contemporary and least rustic result, and it is the species that works best with tinted resin – smoke grey, deep amber, near-black – because there is no competing colour in the wood itself.
In a minimal interior, ash with a smoke-tinted channel is about as restrained as a river table gets while still being unmistakably one.
What the Resin Does to Each
Clear resin is not neutral. It magnifies. Whatever the wood is doing at the edge of the channel – a tight grain, a burl, a crack, a colour shift – the resin enlarges it and holds it at a slightly different depth than the eye expects.
- Dark wood, clear resin: maximum contrast, strongest visual weight. Walnut and elm.
- Pale wood, clear resin: calm, architectural, light. Oak and ash.
- Pale wood, tinted resin: contemporary and graphic – the tint becomes the colour of the piece. Ash above all.
- Dark wood, tinted resin: rarely the right answer. The two compete and the composition goes muddy.
How to Actually Choose
Start from the room, not the species. Three questions settle it almost every time:
- Is the room bright or dim? Dark wood absorbs light and suits a room that already has plenty. Pale wood gives it back.
- What else has strong grain? If the floor is a busy oak, a busy elm slab will fight it. Match one, calm the other.
- How hard will it be used? Daily family dining or a commercial bar leans oak. A coffee table or a desk opens the field.
If you are still undecided, that is normal and it is not a problem – we choose the specific slab together before anything is poured, and photographs of the actual piece of wood settle the question faster than any description. That is step two of the process.
See the finished results in the river tables collection, or read River Tables Explained for what happens to the slab after it is chosen.