Why do site errors keep recurring after good factory work?

A run of twelve workstations reaches an office floor on time. The panels are clean, the edges tight, the powder coat even. On site the crew finds every cable cut-out and grommet on the wrong side of the modesty panels. Two weeks earlier the client moved the floor boxes and conduit, and told the designer on a call. The drawing went to revision C. The cut list on the factory floor still said B. The crew goes back four days later with new desk tops, and three months on, a different order fails the same way.

The factory did good work. It did it to the wrong information. Site errors recur because measurements and changes pass through several people with no shared checklist and no single change log. Nobody traces each rectification trip to the step that caused it. Fixing that is mostly a matter of roles and routine, which is why it lands on the people side of the business.

1. 1

   Showroom or sales brief

   The customer describes what they want, and a few promises get made that never reach paper: a soft-close upgrade, a deeper loft, a handle swap.

2. 2

   Site measurement

   Wall lengths, diagonals, sill and ceiling heights, plumbing stubs and switchboards are taken. Anything not on the sheet is lost from here.

3. 3

   Design drawing

   The designer turns the brief and the sheet into a layout the customer signs. Later changes arrive by phone and message.

4. 4

   Estimating and cut list

   Panels, edge tape codes, laminate shades and hardware are listed. If the revision letter is not printed here, the floor cannot tell old from new.

5. 5

   Factory and dispatch

   The plant builds exactly what the cut list says, and dispatch loads what the plant built.

6. 6

   Site

   The crew meets the real room, which may have changed since it was measured.

• Changes agreed in conversation. The customer tells whoever answers the phone, and that person assumes someone else will pass it on.
• Revision letters that stop at the drawing. The layout shows revision C, while the cut list, the drilling file and the packing slip carry no letter at all.
• Site readiness assumed. Measurement happened before tiling, granite or flooring, so plinth heights, dado lines and skirting clearances have moved when the crew walks in.
• Silent fixes on site. An installer scribes a side panel or adds a filler strip, the customer is happy, and nobody upstream learns the measurement was off.
• Rectification trips booked as service. A second trip goes in the service diary rather than the error record, and its cause is never counted.

Not one of these is a craft problem. A plant can employ excellent carpenters and still trip on all five.

Order number and the revision letter this change creates.
What changed, in plain words, with the affected panels or units listed.
Who asked for it, how, and on what date.
Who accepted it, and whether price or delivery date moves.
Cut list, drilling file and packing slip reissued: yes or no, with initials.
Old sheets withdrawn from the floor: yes or no, with initials.
Customer told of the new drawing, and how.

A project coordinator usually owns the log. The rule that makes it work is blunt: no change reaches the floor except through the log, and the floor cuts only from sheets carrying the current letter. When a revision is issued, the coordinator walks to the panel saw and collects the old sheet. That walk is the step most plants skip.

• Measurement owner. Signs the site sheet and answers questions on it until fitting is done.
• Drawing release owner. Sends drawings to production, alone and always with a revision letter.
• Cut-list checker. Compares the cut list and drilling file against the released drawing before the first sheet is cut.
• Site readiness caller. Confirms by phone or photo, a few days before dispatch, that flooring, tiling, sockets and the sink or hob points are in place.
• Rectification reviewer. Reads the cause of every second trip and carries it to the monthly meeting.

Write these duties into each person's job description, along with the right to halt work. A cut-list checker who must seek permission to stop the beam saw will not stop it. See how kitchen workshops define the measurer and coordinator, and the same exercise in hotel and shop fit-out plants.

Keep the codes few. Measurement, change not passed on, factory defect, transit damage, site not ready, fitting error, and customer change after sign-off will cover almost every trip. Every second trip gets one code, chosen by the reviewer after a short talk with the crew. Read the totals monthly with sales, design, production and site in one room. The codes describe steps, not people, which keeps the meeting from becoming a trial.

Should installers fix small errors on site? Within written limits, yes: scribing an end panel, packing a base unit, adjusting hinge cups. Anything that means cutting a carcass or moving a sink stops the job and goes into the log. Every site fix, however small, is reported, because it is a measurement lesson.

Do we need project software? Not to start. A shared sheet works if one person owns it and the floor trusts it. Buy a tool after the habit has formed, never to create it.

Why is this an HR matter at all? Because the cure is roles, authority and training. Handover duties belong in job descriptions. New measurers need an induction on the site sheet. Reviews for coordinators and checkers should look at return-visit causes, not just orders shipped.

What about the customer who changes the design after signing? Accept the change through the log, with any shift in date or price agreed in writing. The trouble comes from changes accepted kindly and recorded nowhere.

Tag them by cause this week. The pattern usually points to one or two missing handovers, not to the factory. The furniture and joinery people guide covers the wider picture, and the piece on design, factory and site handovers goes deeper on the checklist. Kitchen makers will recognise the measurement end of this in one wrong wall length. If you want the roles and the change log designed alongside your team, start with a short brief.