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Trade test Class C — Q1

Trade test question 1 — build it on screen before you build it in the exam room

Drawn from the published dimensions (rev. 2025-06-18) · three-view / part drawings / cut list / 3D

What this template builds for you

Taiwan's Class C furniture-woodworking trade test has three practical questions; you draw one on the day and have four hours. Question 1 (01200-100301) is a 320×120×350 mm rack: two side panels whose four edges are all different (back edge vertical, top edge dropping 30 toward the front, bottom edge rising 15, depth 120 → 95), a standing back rail, a shelf with twin through tenons standing 10 mm proud, a dowelled lower rail, a stub-tenoned front lip, and a 6 mm plywood back housed in a rebate.

This template draws all of that from the published dimensions: rotate the 3D to see which face every mortise is on, print the part drawings to check your marking-out, and use the cut list to confirm the official stock (one 750×125 board, two 650×110 boards, one sheet of 6 mm plywood) is enough. The tenon proud amount is adjustable (the exam is 10 mm) if you want to practise flush through tenons first.

**Drawn from the published dimensions — not the official drawing. On test day follow the official paper from the Workforce Development Agency (owinform.wdasec.gov.tw).**

Who this template suits

✓ Recommended for

· Candidates for the Class C furniture-woodworking test
· Woodworking classrooms running exam practice
· Anyone wanting a small piece to practise through tenons and dowels

× Not for

· Using it as the official exam drawing (use the official paper)

Parameters you can adjust

The algorithm auto-computes dimensions, joinery, and material usage.

Size

Default = exam size 320×120×350; sliders only scale it for practice, non-exam sizes are flagged

Side panels

Four different edges: back vertical 350, top drops 30, bottom rises 15, depth 120→95

Joinery

Shelf twin through tenons (proud adjustable, exam 10 mm); back and lower rails on Ø8×30 dowels; stub-tenoned front lip

Back

6 mm plywood between shelf and lower rail, housed 6 mm into the side panels

Trade test Class C — Q1 common dimensions

These numbers come straight from this template's adjustable ranges and defaults, so they update whenever the template does.

Dimension	Adjustable range	Template default
Length	up to 600 mm (60 cm)	320 mm (32 cm)
Width (depth)	up to 300 mm (30 cm)	120 mm (12 cm)
Height	up to 600 mm (60 cm)	350 mm (35 cm)
Shelf through-tenon proud	0–15 mm (0–1.5 cm)	10 mm (1 cm)

Main dimensions list only the upper bound: the template has no meaningful lower limit. Values in mm with cm in brackets.

Enter sizes, get everything

Six deliverables in one pass — print A4 and walk into the shop.

📐

Engineering views

Front / side / top auto-dimensioned

🪵

Perspective

3D rotatable, explodable, see inside

🔧

Joinery detail

Every joint zoomed and dimensioned

📊

Cut list

Per-part sizes, board-foot conversion, waste estimate

✂️

Cut layout

Optimized stock layout, minimum waste

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A4 PDF

One-click print for the shop

Real generated output

The screens below are actually generated from the Trade test Class C — Q1 template — apply your sizes and they update live.

Engineering views
Front / side / top fully auto-dimensioned

Cut layout
Algorithmic nesting, minimum waste — hand to the lumber yard and cut straight from it

Cut list
Per-part sizes with board-foot conversion, printable for the shop

Build steps
Stock prep through finishing, every step timed

3D perspective
Rotatable, explodable, see the joinery inside

※ These regenerate live whenever you tweak size, wood, or style

When you'd build one

The week before

Learn which face every mortise sits on in 3D so you don't mirror the marking-out under pressure.

Classroom

Project the cut list and let students work out the most economical cuts from the three official boards.

First through tenon

Set the proud amount to 0 to practise a flush through tenon, then go back to the exam's 10 mm.

2 preset variations

Swap styles in one click — no need to re-adjust every parameter from scratch.

Exam size

320×120×350, tenons 10 mm proud, plywood back fitted — the piece you make if you draw question 1

Flush tenon practice

Proud amount 0, everything else unchanged

FAQ

Is this the official drawing?+

No. It is a practice template drawn from the dimensions published by the Skill Evaluation Center. On test day follow the official reference paper (question set 01200-100301-3, latest revision 2025-06-18).

What stock does the exam supply?+

Per candidate: 750×125×18.5 ×1, 650×110×18.5 ×2, 6 mm plywood 300×260 (one sheet for this question), Ø8×30 dowels ×12, Ø2.4×15 wood screws ×10, PVA glue. Spruce, pine or lauan (or similar knot-free wood).

How long is the test?+

Four hours (official schedule: 3 hours, lunch, then 1 hour). All three questions share the same stock and tool lists.

Why isn't the side panel a trapezoid?+

The back edge is vertical, but the top drops 30 toward the front, the bottom rises 15, and the front edge narrows from 120 to 95 — four different edges. That angled marking-out is exactly what the question tests.