# A shadow board that never needs a stocktake

> Ten yellow tool silhouettes painted where the tools hang mean a missing one shows from the doorway, without anyone counting or checking a list.

August 19, 2026 · https://justog.club/stories/the-shed-is-a-filing-system

Ten flat yellow shapes, painted solid, run in a row across the chest — a saw, a square, a set of
chisels, a hammer, a brace, shears, a trowel, a fork. Four carry a small label underneath: SAW,
BRACE, SHEARS, TROWEL. The tools themselves aren't drawn. Only the painted shapes they leave.

Nobody checks this board against a list. From the doorway, a gap in the row is the whole report.

## Why are the shapes solid painted blocks instead of thin outlines?

Because a solid block is what still reads from across a shed; a thin outline mostly doesn't.

A shape sketched as a line drawing needs somebody close enough, and paying enough attention, to
trace its edge. A block of flat colour registers the instant it enters your field of view, the same
way a road sign works before you can read the word on it. When the actual tool hangs in front of
its shape, the colour is covered and invisible; the moment it's lifted off the hook, the block shows
again. The shape isn't decoration around where the tool lives — it's the part of the system that
does the reporting.

## How does a painted board show a missing tool without anyone consulting a list?

Because the row itself is the list, and an empty space in it reads at a glance rather than requiring
a comparison.

Checking a shelf against a written inventory means holding two things in your head at once — what's
actually there, and what's supposed to be — and comparing them item by item. A shadow board collapses
that into one look: painted shape means gone, tool means present, and the two states are visually
different enough that nobody has to think about which is which. [The one stair that always
creaks](/stories/the-stair-that-creaks) works on a similar shortcut — a signal built into the
object itself, doing a job that would otherwise need someone paying deliberate attention.

## Why are only four of the ten shapes labelled?

Because those four have an outline something else in the row could plausibly be mistaken for.

A saw's shape can still be confused with a different saw; a brace looks enough like a hand drill from
a few paces off to earn a name under it; shears and pliers, a trowel and a small spade, sit close
enough in silhouette that a label settles it in one glance instead of two. The square, the hammer,
the fork — each of those has an outline nothing else on the board shares, so a name under it would
be telling you something you can already see.

## Does painting a row of common tool shapes raise any ownership question?

No. The outline of a saw or a hammer is a generic form, not anyone's design.

Nobody holds a claim over the shape of a chisel or the general profile of a garden fork — those
outlines are as old as the tools themselves and belong to the trade, not to a manufacturer. What
would need clearing is a specific maker's branding painted alongside the shape: a logo, a model
name stencilled on. Left as plain silhouettes with generic labels, as here, none of that applies.

## Does the same idea work for a kitchen, a desk or a van?

Yes — the row just changes to whatever set of objects actually goes missing from that particular
surface.

A kitchen version runs to a rolling pin, a whisk, a particular knife; a desk to a stapler, a
specific pair of scissors, a hole punch; a van to whatever tends to get left on a job site and not
come back. [The way a child lines objects up by size before anyone asks them to](/stories/the-thing-they-line-up)
is a related, earlier version of the same instinct — order as its own kind of check.

## Isn't it obvious when a tool is missing without going to this trouble?

Not from a doorway, at a glance, across a cluttered shed — which is exactly the situation this
board is built for.

A tool leaning somewhere else, a hook with nothing hanging on it among twenty other hooks: none of
that stands out on its own. A block of yellow paint with nothing covering it does. The board doesn't
make the tool easier to find later — it makes its absence impossible to miss the moment you walk in,
which is a different and earlier kind of useful.

## Does a row of flat painted silhouettes print well on a shirt?

Yes — hard-edged solid shapes are exactly the kind of print that survives the weave cleanly.

Flat yellow with a crisp outline holds its shape at chest scale the way it holds it on the shed wall;
there's no shading or gradient to go muddy in the fabric. [Working across a limited, deliberate set
of colours](/stories/design-across-seven-colours) keeps ten separate tool shapes readable as
ten separate objects rather than one busy yellow smear.

## How do I get one made?

Describe the board at [JustOG](/) — which tools, which of them get labelled, and how many should
sit in the row. Pick a direction, drag the crop frame, see it composited on the real garment, and
it's made to order and shipped.

Designs other people have published are in the [shop](/shop).

Ten yellow shapes on a board, and a gap where the trowel should be that nobody had to go looking for.