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Design and Technology
Key terms
Thickness

GCSE Design and Technology · key term

Thickness

Definition

The distance between the two surfaces of a sheet of material. Thickness is a different measurement from grammage.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Design and Technology · 1DT0

Specification 3.5.1, 4.5.2 · Paper 1

Thickness measures the distance between a sheet’s two surfaces. Grammage measures its mass per unit area. They are related, but they are not interchangeable.
Revise: Stock Forms and Types
The distance between the two opposite faces of a sheet.
Revise: Material Sizes

Edexcel Design and Technology past papers

Exam tips

1
Use gsm for mass per unit area, not thickness. A higher gsm does not guarantee greater thickness or stiffness when comparing different materials.

Related key terms

Bond paper
Cross-sectional area
Diameter
Grammage
gsm

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Thickness — Edexcel GCSE Design and Technology Definition

Manufacturing allowance