1,000 SUPER THICK Index Cards 3x5 14pt - Heavyweight Flashcards

In this review the focus is on whether a bulk pack of very thick index cards is worth choosing over standard paper-thin brands. The bottom line: these 1,000 SUPER THICK 3x5 cards are aimed at students, teachers, and crafters who need durable, archival-quality cards that resist marker bleed and survive heavy use; the single biggest reason to buy is the substantially thicker 14pt, 100lb card stock that feels far sturdier than typical index cards while remaining affordable for bulk use.

Key Features

• 14pt 100lb card stock: Provides a heavy, tactile surface that withstands handling in book bags and repeated shuffling without bending easily.
• Uncoated smooth surface: Absorbs gel, ballpoint, marker, watercolor, and inkjet inks for readable notes and minimal bleed through.
• Archival acid-free paper: Ensures written work and study cards do not yellow over time, good for long-term storage of notes and projects.
• 98 bright white: Offers a high-contrast background that improves legibility for handwriting, printed text, and colored markers.
• US made and USPS compliant: Manufactured in the USA and thick enough to meet postcard thickness guidelines for mail use when needed.

Who It's For

These index cards are ideal for students creating durable flashcards, teachers preparing classroom materials, and artists who need thick card stock for small mixed-media studies. The pack size of 1,000 makes them suitable for high-volume use where consistency and sturdiness matter.

Those who rely on standard office printers should request a free sample first, since only some printers handle 14pt cards reliably; customers needing ultra-thin, low-cost disposable cards should look for lighter weight options instead.

Pros & Cons

Pros

• Noticeably thicker and more durable than store-bought index cards, increasing longevity and resistance to creasing.
• Minimal marker bleed through and good ink absorption on the uncoated surface for clean notes and colored headings.
• Archival, acid-free construction keeps cards bright and suitable for long-term use or keepsakes.

Cons

• Thicker 14pt stock may not feed through all home or office printers, so testing a free sample is recommended.

Specifications

Size	3 in x 5 in
Thickness	14pt (0.014 in)
Weight	100lb card stock
Color	98 bright white
Surface	Uncoated smooth
Archival	Acid-free, elemental chlorine free
Origin	Made in USA

Our Verdict

For anyone who needs sturdy, long-lasting index cards in bulk, these 14pt 3x5 cards are excellent value: they strike a practical balance between durability and affordability while offering archival, bright white, uncoated surfaces that handle pens, markers, and some printers well. Request a free sample if you plan to print on them, but otherwise they are a smart upgrade from supermarket index cards.

Frequently Asked Questions

Can I print these cards in a home printer?
Some home and office printers will handle 14pt stock but many will not; request a free sample to test your specific printer before buying bulk.

Do markers bleed through?
The uncoated surface soaks ink and resists bleed through better than thin index cards, though very heavy marker use may still show some ghosting.

Are these archival quality?
Yes, the cards are acid-free and elemental chlorine free, suitable for long-term storage of notes and study materials.