Timber › Past questions › 2025
2025 HSC Timber paper
Original paper and marking guidelines: NESA 2025 exam pack
Section I (text-only questions)
2025 HSC Q1 Section I1 markJoints and fittings
What is the primary purpose of a stopped housing joint?
- To conceal the housing
- To prevent the joint from slipping
- To allow for easy disassembly of the joint
- To create a decorative housing on the front edge
Answer
A
2025 HSC Q2 Section I1 markTools and machines
A spade bit is used to drill a hole through a piece of timber. What is the recommended method to prevent splintering?
- Use a centre punch to mark the drilling spot
- Drill a pilot hole before drilling the full hole
- Clamp a piece of scrap wood under the wood being drilled
- Use a drill bit that is specifically designed for drilling timber
Answer
C
2025 HSC Q3 Section I1 markTools and machines
What is the purpose of a tailstock in woodturning?
- To hold the tool rest in place
- To control the speed of the lathe
- To create a decorative groove on the timber
- To provide additional support to the workpiece during turning
Answer
D
2025 HSC Q4 Section I1 markTimber and materials
How does a pictorial drawing differ from a working drawing?
- It focuses on construction details.
- It is only used for displaying 3D views.
- It includes measurements and instructions.
- It is only used for displaying multiple 2D views.
Answer
B
2025 HSC Q5 Section I1 markTimber and materials
Laminated timber is considered to be stronger than solid timber because
- it uses synthetic materials.
- it is made from hardwood.
- it is treated with special chemicals.
- its defects are limited to individual layers.
Answer
D
2025 HSC Q6 Section I1 markJoints and fittings
What is the primary purpose of rails in cabinetmaking?
- To provide decorative elements on cabinet doors
- To connect and stabilise vertical components of a frame
- To support the weight of the cabinet and prevent sagging
- To allow for the attachment of hinges and other cabinet hardware
Answer
B
2025 HSC Q7 Section I1 markSeasoning and conversion
What is a major disadvantage of using plywood in cabinetmaking?
- It cannot be cut or shaped easily.
- It is heavy and difficult to transport.
- It has poor strength compared to solid timber.
- It can swell or delaminate when exposed to moisture.
Answer
D
2025 HSC Q8 Section I1 markJoints and fittings
When should mechanical drawer runners be used in cabinetmaking?
- When cost efficiency is more of a priority than durability
- When making traditional cabinets that require a vintage appearance
- When constructing drawers that need smooth movement under heavy loads
- When constructing frequently opened drawers that only need a simple friction fit
Answer
C
2025 HSC Q9 Section I1 markJoints and fittings
Why is it recommended that a tenon be one third of the timber’s thickness?
- For efficient chisel use and minimal waste
- To provide maximum strength and stability
- For ease of insertion and prevention of splitting
- To ensure maximum gluing area for bonding surfaces
Answer
B
2025 HSC Q10 Section I1 markFinishing
What is the correct order of operations for finishing the timber of a completed woodworking project?
- Sand, raise the grain, sand, apply finish, buff/polish
- Buff/polish, sand, raise the grain, sand, apply finish
- Sand, buff/polish, raise the grain, sand, apply finish
- Apply finish, sand, raise the grain, buff/polish, sand
Answer
A
Sections II and III
2025 HSC Q11 Section II2 marksTools and machines
Outline ONE critical step necessary when taking measurements from the carcase to produce the drawer.
Model answer
Measure the internal width, height and depth of the carcase opening at several points. Then subtract the clearance required for the drawer runners (from the runner specification) from the width, so the drawer fits the carcase and slides freely without binding.
Memorise pack: T15
NESA marking criteria
• Outlines ONE critical step necessary for taking measurements from the 2 carcase to produce a drawer • Provides some relevant information 1
NESA sample answer
Before making the drawer, you need to measure the internal width, height and depth of the carcase. It’s important to leave space for the drawer runners by subtracting their width and depth from your measurements.
2025 HSC Q12 Section II2 marksJoints and fittings
Outline ONE key characteristic of carcase joints in woodworking.
Model answer
Carcase joints join wide boards or panels at right angles to form a box or cabinet: sides, top, bottom and shelves. A key characteristic is that they support load across the full width of the panel and resist racking, so the carcase stays strong and square. Examples are housing, rebate and dovetail joints.
Memorise pack: T8
NESA marking criteria
• Outlines ONE key characteristic of carcase joints 2 • Provides some relevant information 1
NESA sample answer
A key characteristic of carcase joints is their strength and durability. They are commonly used in making cabinets to connect the sides, top and bottom panels, forming a solid structure that can support shelves and drawers.
2025 HSC Q13 Section II2 marksTools and machines
What are the differences between the use of a band saw and a table saw?
Model answer
A band saw is used for cutting curves and irregular shapes and for resawing thick stock. A table saw is used for straight, precise cuts, such as ripping boards along the grain to width and cutting sheet material to size.
Memorise pack: T15
NESA marking criteria
• Identifies differences between the use of a band saw and a table saw 2 • Provides some relevant information 1
NESA sample answer
A band saw is used for cutting irregular shapes and making curved cuts, while a table saw is used for making precise straight cuts and ripping large pieces of wood.
Answers could include
Cutting curves on a bandsaw as opposed to straight cuts on the table saw.
2025 HSC Q14 Section II4 marksBending and laminating
Describe a suitable bending process that could be used to create the curved feature legs for the table shown.
Model answer
Laminating is suitable. First make a former to the curve of the leg from layers of MDF, allowing a little extra curve for springback. Rip thin strips of straight-grained timber that bend easily, keeping them in order, and dry-clamp them to check the fit. Spread urea-formaldehyde or epoxy glue on the mating faces, stack the strips and clamp them to the former from the centre outwards (or use a vacuum bag). Wipe off squeeze-out. When the glue has fully cured, remove the leg, clean the edges with a jointer or router and template, then cut to length and sand.
Memorise pack: T6
NESA marking criteria
• Provides a thorough description of a suitable bending process 4 • Provides some description of a suitable bending process 3 • Demonstrates some understanding of a bending process 2 • Provides some relevant information 1
NESA sample answer
To create a curved feature leg for the table, you can use the laminating process. Start by cutting thin strips of wood that can bend easily. Apply a strong adhesive to each strip and stack them together. Place the stacked strips onto a pre-made form with the desired curve and secure them with clamps. Allow the adhesive to cure completely, ensuring the layers bond together. Once the adhesive is fully set, remove the clamps and sand the curved leg to smooth out any rough edges.
Answers could include
• Steam bending: soaking wood in water, steaming it to increase pliability, bending around a form and clamping to set the shape. • Kerf bending: making a series of cuts (kerfs) on the inside of the curve to allow the wood to bend, then filling the kerfs with adhesive and clamping to set the shape.
2025 HSC Q15 Section II5 marksWHS
Recommend set-up, startup and maintenance procedures for operating high-risk machinery.
Model answer
Set-up: only trained, authorised operators should use the machine. Check that the area is clear and well lit, dust extraction is connected, and the correct sharp blade is fitted with all guards in place and adjusted. Start-up: wear safety glasses, hearing protection and a dust mask, remove loose clothing and jewellery, test the emergency stop, let the machine reach full speed before cutting, and use push sticks and fences. Maintenance: isolate the power and lock out and tag out before any adjustment or blade change. Regularly inspect and replace worn blades and belts, lubricate moving parts and clean away dust, and record all work in a maintenance log. Report and tag out faulty machines immediately.
Memorise pack: T12
NESA marking criteria
• Provides a thorough description of appropriate set-up, startup and 5 maintenance procedures for operating high-risk machinery • Describes appropriate set-up, startup and maintenance procedures for 4 operating high-risk machinery • Outlines some of the set-up, startup and/or maintenance procedures for 3 operating high-risk machinery • Outlines ONE set-up or startup or maintenance procedure for operating 2 high-risk machinery • Provides some relevant information 1
NESA sample answer
First, the machine should be checked for any damage and to make sure all safety guards are in place. For startup, test the controls and safety features and make sure all the necessary protective gear are worn. For maintenance, regularly inspect and lubricate the machine, replace any worn-out parts and keep a detailed maintenance log. Clean the machine often to prevent dust and debris from building up.
Answers could include
• Specific setup procedures: ensuring proper ventilation, checking for debris and securing the work area. • Pre-operation checks: verifying power supply, ensuring all machine guards are in place and checking that emergency stop mechanisms are functioning. • Operator training: ensuring operators are adequately trained and understand the operation manual. • Routine maintenance: scheduling regular maintenance checks, including inspecting belts, blades and other moving parts. • Lubrication: ensuring all moving parts are properly lubricated to prevent wear and tear. • Cleaning: regularly cleaning the machinery to prevent dust and debris buildup, which can affect machine performance. • Record keeping: keeping detailed records of all maintenance activities, repairs and inspections. • Emergency procedures: having clear emergency procedures in place, including knowing how to quickly shut down the machine in case of a malfunction. Section III
2025 HSC Q16(a) Section III5 marksLegislation and environment
Describe the effects of legislative requirements on the sustainable practices and environmental impacts of the timber products and furniture industry.
Model answer
Federal: the Illegal Logging Prohibition Act 2012 makes it an offence to import or process illegally logged timber, and requires importers and processors to carry out due diligence on where timber comes from. This has pushed furniture businesses towards certified timber (FSC or Responsible Wood/PEFC), reducing support for illegal logging and the deforestation and biodiversity loss it causes overseas.
State: Victoria and Western Australia ended commercial native forest logging from 1 January 2024. This protects habitat and carbon stores, but it forced manufacturers to switch to plantation, imported or recycled timber and caused mill closures and job losses. Pollution control: under the NSW Protection of the Environment Operations Act 1997, sawmills, board plants and finishing operations may need EPA licences and must control dust, noise, solvent emissions and waste. This drives investment in dust extraction, spray booths and low-VOC finishes.
Local: councils require development approval and environmental impact assessment for new factories. Overall, legislation has made sustainable sourcing and pollution control compulsory, improving the industry's environmental footprint at the cost of higher compliance costs.
Memorise pack: S7
NESA marking criteria
• Describes in detail how legislative requirements have affected 5 sustainable practices and environmental impacts of the industry • Describes how legislative requirements have affected sustainable 4 practices and/or environmental impacts of the industry • Outlines the effects of legislative requirements on the sustainable 3 practices and/or environmental impacts of the industry • Demonstrates some understanding of legislative requirements or 2 sustainable practices or environmental impacts • Provides some relevant information 1
NESA sample answer
Legislation mandates that timber products come from responsibly managed forests. This has led to a reduction in illegal logging and promoted sustainable forest management practices. As a result, companies are now more committed to sourcing their materials responsibly, which helps protect biodiversity and reduce carbon emissions. For instance, companies adhering to Forest Stewardship Council (FSC) certification have implemented reforestation programs and sustainable harvesting techniques. This regulation has significantly improved the industry’s environmental footprint by encouraging sustainable practices and reducing deforestation.
2025 HSC Q16(b) Section III10 marksHistorical developments
Analyse how historical developments and advancements in manufacturing processes have affected the timber products and furniture industry. Support your answer with relevant examples.
Model answer
Historical developments in manufacturing processes, materials and work practices have moved the timber and furniture industry from hand craft to automated mass production. This has made furniture more affordable, consistent and safe, although it has reduced traditional skills and some jobs.
Before the Industrial Revolution, furniture was made by hand by skilled craftsmen using hand saws, planes and chisels. Production was slow and expensive, and quality depended on the individual maker. The Industrial Revolution brought steam-powered sawmills and machinery, such as the circular saw and powered planers, which greatly increased output. In 1859 Michael Thonet's steam-bent beech No. 14 chair was made from a few standard parts by semi-skilled workers and shipped in parts. This early mass production and flat-pack thinking made furniture affordable.
In the 20th century, electric motors made individual machines and portable power tools (routers, drills, biscuit jointers) common. This improved precision, reduced physical labour and allowed small workshops to mechanise. Manufactured boards were a major materials development: plywood, then particleboard and MDF from the mid-20th century. They used waste and small logs, came in large stable sheets and suited fast assembly with knock-down fittings, which led to flat-pack firms such as IKEA.
In the late 20th century, CNC machining and CAD/CAM allowed highly precise, repeatable and complex cuts and custom sizing at factory speed. Today CNC nesting routers, automatic edge banders and engineered timbers such as glulam and CLT (used in International House Sydney, 2017) continue this change. Work practices changed with the technology: specialised production-line jobs replaced the all-round craftsman, and later multi-skilling, WHS law and training in CNC programming emerged.
Negative effects include loss of hand skills and jobs, environmental pressure from mass consumption, and lower-quality disposable furniture. Overall, historical developments have shaped the industry positively, greatly improving productivity, precision, safety and affordability.
Memorise pack: S6
NESA marking criteria
• Provides a comprehensive analysis of how historical developments and advancements in manufacturing processes have affected the timber products and furniture industry 9–10 • Integrates relevant industry examples to support response • Provides a sound analysis of how historical developments and advancements in manufacturing processes have affected the timber products and furniture industry 7–8 • Makes reference to industry examples to support response • Provides an analysis of how historical developments and/or advancements in manufacturing processes have affected the timber products and furniture industry OR 5–6 • Provides a description of how historical developments and advancements in manufacturing processes have affected the timber products and furniture industry with some reference to industry examples • Demonstrates some understanding of historical developments and/or 3–4 advancements in manufacturing processes and/or effects on industry • Provides some relevant information 1–2
NESA sample answer
The woodworking industry has been significantly affected by various historical developments in manufacturing processes. During the Industrial Revolution, the introduction of steam- powered machinery drastically increased production capabilities and efficiency. This allowed for the mass production of wooden furniture and other products, meeting the growing demands of the time. In the 20th century, the advent of electric-powered tools, such as electric saws and lathes, further revolutionised the industry. These tools improved precision and reduced the physical labour required for woodworking, allowing for more intricate and consistent designs. Additionally, the standardisation of parts and materials during this period led to greater uniformity and quality control in products. The introduction of computer numerical control (CNC) technology in the late 20th century marked a significant advancement. CNC machines enabled highly precise and complex cuts, which were previously impossible with manual tools. This technology has allowed for greater customisation and innovation in woodworking designs, catering to diverse consumer demands. These historical developments have collectively enhanced the productivity, safety and precision of the woodworking industry. They have also opened up new possibilities for design and creativity, shaping the industry into what it is today.
Answers could include
• Mechanisation and automation revolutionised production, increasing efficiency and reducing labour costs. • Mass production methods enabled affordability and wider accessibility of products. • Digital and computer-aided technologies enhanced precision, consistency and design flexibility. • Miniaturisation of components improved functionality, portability and material efficiency. • Robotics, AI, CNC and the like systems optimised manufacturing processes, reducing waste and errors. • CAD, CAM, modelling and authoring software led to improved designs, customisation and manufacturing processes and improved precision and automation • Standardisation of materials and components ensured quality control and interoperability. • Cloud computing and digital storage transformed data accessibility, distribution and collaboration. • Adoption of sustainable manufacturing practices minimised environmental impact and waste. • Increased use of recycled, biodegradable and eco-friendly materials across industries. • Energy-efficient production methods reduced resource consumption and carbon emissions. • Circular economy principles promoted waste reduction, material reuse and sustainability. • Integration of renewable energy sources reduced reliance on fossil fuels in industrial operations. • Digital solutions such as cloud storage and on-demand production minimised material waste. • Green technologies advanced the creation of environmentally friendly and energy-efficient products. • Ethical and sustainable sourcing practices ensured responsible use of resources. • Ongoing research and technological innovation continue to shape modern industry and sustainability efforts. 2025 HSC Industrial Technology Timber Products and Furniture Technologies