Premium Heavyweight White Cardstock Paper Sheets – A3 Size (300GSM) | Pack of 10 Thick Crafting & Printing Sheets

Premium Heavyweight White Cardstock Paper Sheets – A3 Size (300GSM) | Pack of 10 Thick Crafting & Printing Sheets

The Ultimate Structural Base for Heavy Crafts & Prints

Take your structural paper crafts, modeling, and professional prints to a new level with our Premium Heavyweight White Cardstock Paper Sheets. Cut to a generous A3 size and featuring an ultra-sturdy, rigid weight of 300GSM, this cardstock provides a robust foundation that handles demanding artistic techniques, folding, scoring, and heavy media.

With its pristine, crisp white shade and super-smooth, non-reflective matte finish, it is a highly versatile choice for wedding invites, structural paper modeling, packaging prototypes, and high-contrast marker illustrations.

Product Specifications

• Product Type: Heavyweight White Cardstock Sheets.
• Paper Size: A3 Size (16.5 inches x 11.7 inches)
• Paper Weight: 300GSM (Heavy-duty, rigid, and warp-resistant).
• Surface Finish: Clean Matte White (Ultra-smooth, uncoated texture).
• Color: Crisp Bright White.
• Archival Quality: Acid-Free & Lignin-Free (Resists yellowing over time).
• Quantity: Pack of 10Sheets

Key Features & Benefits

1. Ultra-Rigid 300 GSM Build: Feels highly substantial—similar to premium menu boards or business cards. It provides excellent structural integrity, making it resistant to bending, tearing, and curling when worked on.
2. Saturated Ink Holdout & Non-Bleeding: Specifically designed with dense fibers that absorb liquid pigment rapidly. Perfect for heavy marker layouts, ink stamps, or gel pens without messy bleeding or feathering.
3. Perfect for Folding & Scoring: Holds deep, crisp fold creases without cracking along the spine, making it highly prized for structural card engineering and custom papercraft boxes.
4. Acid-Free Archival Longevity: Manufactured without harsh chemicals, keeping your paper elements, layouts, and memory cards beautifully bright white and free from discoloration for decades.
5. Excellent Printer Compatibility: Smooth and standard enough to feed smoothly through manual rear-feed trays of heavy-duty laser and inkjet printers.

Ideal Applications

• Card Making & Scrapbook Bases: Perfect as a robust base fold for premium handmade greeting cards, structural box folds, and scrapbook pages.
• Paper Engineering & Modeling: Create architectural models, 3D paper sculptures, geometric shapes, and custom product packaging mocks.
• High-End Printing: Print crisp menus, custom certificates, art prints, luxurious wedding invitations, and greeting card backings.
• Alcohol Marker & Ink Illustration: The smooth, dense surface is great for blendable alcohol marker illustrations, fine-line ink artwork, and stamp impressions.
• DIY Stencils & Cutting Machines: Sturdy enough to run through electronic craft cutters to make reusable custom stencils, tags, or paper cutouts.

Pro Tips for Working with A3 Cardstock

• For Crisp Folds: When making structural cards or boxes, always use a bone folder or scoring board to pre-crease your lines. This ensures a clean, straight fold with zero fiber tearing.
• For Clean Printing: Ensure your printer settings are adjusted to “Heavy Paper”, “Cardstock”, or “Poster Board” 300GSM and feed the sheets one by one through the manual/rear tray to bypass tight internal rollers.
• For Stamping: Use fast-drying pigment ink pads on this matte finish to achieve crisp, high-contrast outlines without smudging.