Plywood volumes: design and setting guide.

Shape families and what each does

Commercial volume sets are usually built around a handful of recurring shape families, each solving a different terrain problem rather than competing with the others for the same job.

Corners and wedges change the angle of a flat panel without any structural work — the most common way to turn a slab section into a steeper, more dynamic piece of wall. Roof and ramp pieces create overhanging terrain or transition zones between angles, and are usually the largest, heaviest pieces in a set. Pyramids and prisms give a setter multiple distinct faces on one fixing point, useful for compression and mantling problems. Low-profile pads and half-volumes add subtle terrain change — a foot ledge, a shallow arete, a texture break — without dominating the wall the way a full-depth volume does.

A balanced commercial set has depth across sizes within each family, not just variety across families. Several sizes of the same corner shape let a setter reuse one terrain idea at different scales across a facility, which is usually more useful day-to-day than owning one each of many different shapes.

How fixing volumes differs from fixing holds

A standard hold has one or two fixing points and a small footprint. A volume is larger, heavier, and often carries load across more of its surface — which means fixing point placement, bolt length and panel condition behind the volume all matter more than they do for an individual hold.

Always use every fixing point the volume was designed for, not just enough to stop it visibly moving. A volume that feels secure with two of its four fixings engaged can still flex under repeated dynamic loading in a way a single hold would not. Check that T-nuts in the panel behind the volume are sound before installation — a volume hides the panel surface once fixed, so a damaged T-nut found later usually means removing the volume again to fix it. See the fixing and installation guide for bolt specification and torque settings that apply to volumes as well as holds.

Setting with a limited volume budget

Most commercial gyms own far fewer volumes than holds, simply because volumes cost more per piece and take up more wall area. That makes reuse the central skill in setting with them well: the same volume, rotated or combined with different holds, can produce a noticeably different problem at the next reset.

A practical approach is to treat volumes as the terrain decision and holds as the difficulty decision. Place the volumes first to establish the wall's shape and movement, then use holds to tune grade, direction and the specific sequence. Setting in this order tends to produce more distinct-feeling problems across a reset than starting from a hold plan and fitting volumes in afterwards.

Rotating a volume 90 or 180 degrees between resets, or moving it to a different panel angle, often does more for variety than buying additional shapes. Keep a simple record of where large volumes have been used recently so the same piece in the same position doesn't become a fixture that climbers stop noticing.

Finish and colour

Full-texture volumes give climbers grip across the whole surface, which suits general commercial use and slab terrain where any part of the volume might be used as a foothold. Dual-texture volumes deliberately remove friction from part of the surface, letting the setter control which face is climbable — useful for compression and directional problems where the "wrong" face needs to stay unusable.

Safari Print (Leopard, Tiger or Zebra) finishes keep the same structural options while giving a facility a distinct visual identity, which matters most for feature walls, entrances and competition staging areas that are meant to stand out rather than blend into a standard circuit colour.

Planning a volume order

Before ordering, map the panel space actually available and identify the specific movements the current wall geometry can't create — a volume order built around "what looks good" rather than a known gap tends to duplicate terrain the wall already offers.

For a new facility, the common recommendation is to allocate 15–20% of the initial hold-and-feature budget to volumes, increasing that share over time as the setting team's identity and reset routine mature — the same ratio covered in the choosing climbing holds guide. In-stock finishes move through normal fulfilment; factory-direct production, large openings and coordinated colour schemes need to be discussed with the team well ahead of a fixed opening or event date.