Desk ruler Linex Lineal 30 cm — Linex brand, 30 cm plastic desk ruler

Linex Lineal 30 cm desk ruler is a 30 cm straight measuring tool from Linex designed for accurate drawing, measuring and layout tasks. The rigid plastic construction provides a firm reference edge for drawing lines and taking measurements, while the clear scale ensures legible markings. This desk ruler is intended for everyday use in office, school and drafting environments where a compact, stable 30 cm measuring guide is required.

Advantages

The Linex Lineal 30 cm combines a rigid plastic body with a clearly printed metric scale to offer reliable accuracy for routine measuring and drawing. Its straight edge is suitable for guiding pens and pencils, and the lightweight design makes it easy to reposition on the desk or in a pencil case. The plain, utilitarian design reduces visual distraction and ensures the scale remains readable over repeated use.

Suitable for

• Measuring and drawing straight lines on paper and card
• Schoolwork and classroom activities
• Office layout, marking and quick measurements
• Drafting basic diagrams and sketches

When it may not be suitable

The Linex Lineal 30 cm is not intended for precision engineering tasks that require calibrated metal rules or micrometer-level tolerances. It is also not designed for heavy-duty industrial use where impact resistance or chemical resistance is required. For curved measurements or flexible contour tracing, a flexible curve tool would be more appropriate.

Key specifications

• Length: 30 cm
• Material: rigid plastic
• Scale: metric graduations (centimetre and millimetre markings)
• Edge type: straight, firm drawing edge
• Weight: lightweight for desktop handling

How to use

Place the Linex 30 cm ruler flat on the surface to be measured, aligning the zero mark with the starting point. Hold the ruler firmly with one hand to prevent slipping and use a pencil or pen to draw along the straight edge for accurate lines. For measurements, read the appropriate centimetre or millimetre marking directly adjacent to the measured point. Store the ruler flat or in a pencil case to avoid warping.

What to consider before purchase

• Confirm you need a 30 cm rigid plastic ruler rather than a metal or flexible alternative
• Check that metric markings are suitable for your tasks
• Consider whether a transparent ruler is required for visibility over drawings
• Assess intended use: classroom and office use vs. precision engineering

Usage recommendations

For best results, keep the ruler clean and free of adhesive residue or ink buildup. When drawing, apply even pressure and support the paper to minimise slipping. If you require curved measurements or variable contours, pair the 30 cm straight ruler with a flexible curve or French curve.