This document discusses marking out for bench joinery products. It covers the importance of accuracy in marking out, tools used for marking out like combination squares and marking gauges, using rod boards as references, and techniques like adding face marks. Errors in marking out can lead to wasted time and materials, missed deadlines, and penalties. The document emphasizes measuring twice and checking for discrepancies to avoid costly mistakes.

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Level 2 Diploma in Bench Joinery
PowerPointpresentation
Presentation 1
Unit 213: Mark out from setting out details for
bench joinery products

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Level 2 Diploma in Bench Joinery
Learning outcomes
1 Understand the effect of marking out errors on work.
2 Know how to mark out for bench joinery products.
3 Be able to mark out for bench joinery products.

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Aims and objectives
By the end of this session, learners will:
• be able to fully appreciate the importance of accurate marking out
and the financial penalties associated with them
• know the tools required to accurately mark out for bench joinery
products
• know how to use those tools in accurately marking out a bench
joinery product.

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Level 2 Diploma in Bench Joinery
Health and safety and risk assessments
All actions and tasks consistent with construction/bench joinery and
carpentry works are covered by the:
Health and Safety at Work Act
Provision and Use of Work Equipment Regulations (PUWER)
Approved Code of Practice (ACoP)
personal protective equipment at work (PPE)
environmental regulations.
You should also have in place all the relevant risk assessments to
cover the work you are about to undertake. All of the above should be
fully adhered to when carrying out work.

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Wastage
Time and materials are both in short supply.
Companies do not survive long if they do not make a profit.

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Errors and their possible consequences
There are many negative effects of errors in the marking-out process.
• Wastage of materials.
• Time wasted in remarking and machining material.
• Cost implications of extra man hours to carry out the remedial work
above.
• Possible loss of future contracts because of the schedule has
overrun.
• Delay for other contracts scheduled to follow.
• Possible enforcement of penalty clauses due to late delivery.
• Possible closure of joiner’s shop and redundancies due to no future
work.

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Accuracy and errors
Lack of accuracy in taking measurements from working drawings or job
sheets can also result in the possible outcomes given in the previous
slide.
Discrepancies in the specification, schedule or working drawings
should have been noticed prior to the job sheet arriving with the bench
joiner, but things do get missed:
• an E with the bottom line accidently missing becomes an F.
• an 8 partly rubbed out becomes a 3
So slight errors are possible.
It is essential that any alteration to the job sheet or specification should
be written down and signed by either the line manager, manager,
architect or client to ensure disagreements do not occur on completion.

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Accuracy and errors continued
Accurately setting out and cross-referencing all information regarding bench joinery to
establish the existence of any discrepancies is very important as errors not seen at the
early stages of setting out can have severe consequences further on in the
manufacturing stages.
Lines drawn like these will give a different inside or outside measurement
than ones drawn like these
This is because of the thickness of the lines which over many increments of the
measurement will make your setting out wrong by a long way. Mistakes of this type can
cause remakes, waste of materials, late delivery and ultimately the possibility of penalty
clauses being enforced, so a sharp pencil at all times is of the utmost importance.

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Accuracy and errors continued
You should be aware at all times that one small error will compound
itself to eventually become a large error.
The old adage of measure twice, cut or mark out once is still true
today.
Errors and discrepancies should be reported to the person directly
above you in the management.

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Knowing how to mark out
On the following slide you will be asked to indentify the tools required
for marking out bench joinery products. As level two learners these
should be easily recognised by you.
They are the second most important tools of your chosen trade.

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Tools for marking out
Combination square
Carpenter’s try
square
Marking gaugeMortice gauge Cutting gauge
Set mitre
Combination gauge
Sliding bevel
Tape measure Range of steel rules
Squaring over box
American roofing
square
Marking knife Dividers
Images courtesy of www.workshopheave.com; www.screwfix.com; www.shutterstock.com; David Walker. Reproduced with permission.
Framing square
Protractor, drawing
set squares,
compass, pencils

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Rod boards
A rod board or drawing is important because it is a constant reference
point for bench joinery products. It never changes and can be used to
remake the same joinery product year after year which will always be
the same product.
The accuracy and care taken over the production of a rod board is
essential for the conversion of the information taken from it into a bench
joinery product which complies with the clients requirements.
Errors and inaccuracies in the rod board/drawing may cause many
ongoing problems.
It should also be noted that a pattern should always be used when
marking out pairs or multiples of the same part of the product – this will
ensure accuracy of producing these multiples.

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Rod boards continued
Measurements never alter so if a new or replacement window is
required for example, by having a rod board it can be easily
reproduced at any later stage.
Disadvantage: boards take up space.
Rod boards can be drawn on paper.
Disadvantage: can be torn or easily damaged.
The choice is up to you.

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Face side and edge marks
Face side and edge marks are
marked on the material to ensure
that the marking out is carried out
from the same side and edge.
This means that the finished
product fits properly and the faces
all end up flush and in the correct
position for completion.
Failure to put these marks on the
material could result in the product
being put together incorrectly and
a remake being required.

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Versatility of a box square
The box square is the only square that can
accurately transfer marks around moulded
material.
Although it is possible to use either a set or
combination square they will rock
unsteadily on the material.
This is because the stock and arm are too
thin to provide a good surface contact with
the two areas that need to be marked out.
With a box square it is possible to
accurately transfer marks around the
material because of the two much larger
surface areas in contact with the material.

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Marking out joints and sections
When marking out the moulding profile you require, it is important to
make sure the section drawing corresponds with your chosen face
side and edge.
All components should be marked out before any practical work is
started. This ensures that all components will match each other and
any errors, discrepancies or design faults can be seen and rectified
before the production starts.
It also helps with continuity of work.
If any operative is off ill, the other staff
members will have the all the relevant details
on the materials to keep the production
moving forward without having to continually
refer back to job sheets or specifications.

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Any questions?