T-nut spacing on climbing volumes

T-nuts turn a plywood volume into a settable face. Spacing that is too sparse limits holds; spacing that is too dense wastes hardware and can weaken thin webs between holes. Here is how to think about grids on climbing volumes — and how VOLUME lays them out for you.

Why volumes need their own T-nut plan

Wall panels often use a large sheet grid (for example every 150–200 mm). Volume faces are smaller, steeper, and bordered by mitred edges. You must keep holes away from edges and joins, and still leave enough density for footholds and handholds.

Grid vs staggered

Grid — regular rows and columns; predictable for setters; VOLUME’s typical grid pitch example is on the order of 100 mm with a margin from edges (around 80 mm in defaults).
Staggered — offset rows; can feel more “organic” and sometimes pack useful positions on awkward faces; staggered pitch in the tool is coarser by default (example ~250 mm).

Choose grid when you want maximum control for commercial setting; staggered when the face is small or you want fewer nuts without empty-looking centres.

Practical rules of thumb

Keep a clear margin from panel edges so T-nuts do not blow out the plywood
Avoid drilling through mounting screw zones and structural ribs if you add them
On very steep faces, confirm bolt heads and holds clear the wall behind the volume
More T-nuts cost money but set better — home walls often regret sparse faces

Drill and install

Mark centres from your plan or from VOLUME’s hole export / face preview.
Drill straight from the climbing face with the bit sized for your T-nut.
Install T-nuts from the back; seat them flush so holds pull true.

Pair this with solid sheet: plywood materials.

Mounting screws (volume to wall)

Separate from T-nuts: mounting holes fix the volume to the wall. VOLUME can place screw patterns with insets from edges, minimum spacing, and steeper-face drill considerations so you are not fighting impossible angles on aggressive slopes.

Generate a pattern in VOLUME

Open the designer.
Enable T-nut and mounting options; pick grid or staggered.
Adjust pitch/margin until the 3D preview looks settable.
Export manufacturing files so holes are cut or marked with the panels — not guessed later.

FAQ

How far apart should T-nuts be on a volume?

There is no single gym standard for every face size. Dense grids near 100 mm centres are flexible; larger spacing saves hardware on tiny faces. Use margin from edges and preview hold clearance.

Should I copy my wall’s T-nut grid onto the volume?

Not necessarily. Volume faces are smaller — design a face-specific pattern rather than forcing a full-sheet spacing.