One trusted person calls the moisture: HR for wooden door makers

Put one question to a door factory owner: who says the timber is ready? You will hear a name. It is the yard hand who has stacked and stickered sal, teak or hardwood planks for years. He drives the pins of the moisture meter into a plank, away from the end grain and sapwood. Then he lifts it, taps it, and says yes or not yet. Cutting starts on his word.

That trust is earned. It is also a risk. Away at a family wedding or simply unwell, the frame shop either waits or guesses. Guessing is where warped shutters come from.

A frame carpenter cuts stiles and rails, and tenons are jointed and glued. Flush doors get a blockboard or batten core with skins in the hot press. Panelled doors are assembled with lippings, then sanded. Each step assumes the wood has stopped moving. Timber cut too wet keeps drying after the door leaves the factory. The stile bows or cups, a mortise joint opens, or a skin lifts at the lock block. None of that shows at dispatch. It shows weeks later, after the fitter has hung the shutter on site and the builder's customer cannot close it.

• The rule is unwritten. He reads the meter, then allows for species, plank thickness, the monsoon and where the stack sat in the shed.
• Nobody shadows him. Younger yard hands carry and stack timber but are never asked to take a reading and explain it.
• The meter is not trusted alone. Owners know a reading can mislead on a thick section, so they lean on the man and not the instrument.
• The role has no title. He is paid as a yard worker, so teaching others brings him nothing and may feel like training his replacement.
• Lots are not tagged. Readings live in his memory, so when a complaint comes, nobody can say how dry that batch was.

There are two ways it goes wrong. Either production waits, and the builder's lot slips, or a supervisor makes the call to keep the press loaded. The first costs a delivery date. The second costs more. Twisted doors come back from site in a group, the fitter's visit is wasted, and replacements may be cut from timber just as doubtful. A builder who receives a bad lot of shutters tends to remember it at the next order.

1. 1

   Sit with the checker and write down what he does

   Which species, which thickness, where he takes readings on a plank, how many planks per stack, and what makes him say not yet even when the figure looks fine.

2. 2

   Tag every lot and every door batch

   A tag with the reading, the date, the stack position and the checker's name, carried through to the press batch. The door batch tracing and reporting page shows how such tags feed a simple record.

3. 3

   Choose a second reader and run paired calls

   Over a run of lots, the trainee takes the reading and makes the call first, and the senior agrees or explains why not. Record both calls on the tag.

4. 4

   Sign the trainee off in stages

   First on the common species and thickness, then on thick frame sections, then alone. A staged sign-off for seasoning and press skills suits this kind of sign-off.

5. 5

   Give the role a name and a pay step

   Timber readiness checker is a quality role, not yard labour. A pay band above the yard rate makes teaching worth the senior's while. The joinery grade and pay comparison helps set it.

6. 6

   Say who decides when both are absent

   Usually the answer is that nobody does, and cutting waits. Writing that down protects the supervisor from pressure to guess.

Lot number and supplier: ____.
Species and plank thickness: ____.
Date stacked and stack position in shed: ____.
Meter readings, taken at the plank middle and away from the ends: ____.
Weight and touch check by senior: ready / not yet.
Trainee call, if paired: ready / not yet.
Released for cutting on (date): ____.
Checker name: ____.
Door batch numbers made from this lot: ____.

Seasoning is the plainest example, though not the only one. Glue spread, press time and how pressed doors are stacked to cool also sit with two or three operators. The same method works there: write the method per door type, pair a second operator, tag the press load. A door that twists may have been dry timber pressed badly, and only a tag tells the two apart.

• Who, apart from the senior hand, has declared a timber lot ready in the last year?
• Can you name the lot behind your last twisted-door complaint?
• Is the checker paid differently from the people who stack timber?
• What does the frame shop do on his days off?
• Has anyone written down why he sometimes says not yet when the meter says yes?

Nobody here wants the trusted hand gone. The point is a door line that no longer hangs on his diary. Our solid wood door works page goes deeper on this trade. Sister trades in board, cabinets and site fitting appear on the furniture, door and board industries page. If one person's judgement holds up a part of your floor, describe it to us.