Bulk Index Cards
Compare sizes, formats, colors and paper weights for classrooms, departments, businesses and recurring organizational needs.
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CARD BUYING GUIDES
Find the Right Cards for the Way You Work and Learn
Card size, paper weight and paper type all affect how a card feels and performs. Use these practical guides to compare your options and choose confidently.
Start With the Basics
These guides answer the questions buyers ask most often before choosing index cards or flash cards.
What Is the Best Flash Card Size?
Compare popular card sizes for vocabulary, formulas, presentations, study systems and more.
Compare Flash Card SizesCardstock Weight Guide
Understand how 90 lb, 110 lb and 140 lb card stocks compare, including the difference between pounds and gsm.
Compare Cardstock WeightsIndex Stock vs Cover Stock
Learn why two papers with similar weight labels can feel different and which surface fits your intended use.
Compare Paper TypesShop and Learn by Card Size
Explore the benefits, common uses and available options for each card size.
2 × 3.5Mini cards for compact study systems, drills, organization and specialized workflows.3 × 5The familiar everyday size for studying, notes, recipes and organization.4 × 6More room for detailed notes, presentations, projects and visual learning.5 × 8A spacious card for outlines, teaching materials and information-heavy subjects.
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Browse all of our index cards by size, color, paper weight and punched or unpunched format.
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