148mm Square 400gsm Pre Scored Card - Square Blank Cards For Card Making

£18.39

Pre-Scored 148mm x 148mm White Matte 400gsm FSC Certified Square Greeting Card Blanks – Thick, Bold & Built to Last.

For cards that need to make a statement before they’re even opened.

Our FSC-certified 400gsm white matte square greeting card blanks are a true heavyweight contender — perfect for premium greeting card producers, craft sellers, and serious creators.
Pre-scored and supplied flat, they fold to a solid, substantial 148mm x 148mm square, giving you a spacious canvas that’s built to last and made to impress.

Envelopes are not included, so you’re free to match them with your own custom packaging or branded finish.

Printing Tip:
400gsm is thick, firm, and not suitable for all printers. Check your printer’s specs to ensure it can handle heavyweight stock.
If printing isn’t feasible, these cards are also perfect for:

• Hand-lettering and calligraphy — create stunning, one-of-a-kind pieces.

• Stamping, embossing, and die-cutting — for cards that feel as good as they look.

• Framed art prints and keepsakes — sturdy enough to hang, gift, or display.

• Packaging inserts, product tags, and signage — solid, durable, and unmissable.

• High-end greeting cards and invitations — thick, premium, and designed to impress.

Product Details:

• Card Size (Folded): 148mm x 148mm (Square)

• Card Size (Open Flat): 148mm x 296mm — more space for impactful designs.

• Card Finish: Smooth white matte — a polished surface for professional printing, painting, or lettering.

• Card Weight: 400gsm — thick, firm, and undeniably luxurious.

• Card Certification: FSC Certified — responsibly sourced and sustainably produced.

• Supplied: Pre-scored and flat — perfect for storing, stacking, and folding when ready.

• Envelopes: Not included — choose your own to add that personal or branded touch.

• Quantities: From a few for custom projects to a full lorry load for big production runs.

Perfect for:

• Greeting card producers who want to elevate their product range with thicker stock.

• Wedding stationery and RSVPs — square, stylish, and unmistakably premium.

• Handmade card makers and Etsy sellers — thickness that commands attention (and a higher price).

• Marketing inserts, product tags, and business cards — heavyweight stock that feels substantial.

• Framed art prints, keepsakes, and memorabilia — a thickness that’s built to last.

Why Mankey Monkey?

• No hidden fees: VAT and UK delivery included — always.

• Fast turnaround: We pack and ship quickly, whether it’s a small batch or a massive order.

• Loyalty points: Open a free account and start collecting with every order — more stock, more rewards.

• Expert support: With 25+ years in the paper industry, we’re here to help you choose the right stock for your project.

• Quantities for all needs: From a few to a full lorry load, we’re ready to deliver.

      Ready to go heavyweight with 400gsm?
Order your 148mm x 148mm square card blanks today. FSC certified, pre-scored, supplied flat, and packed with creative potential.
Envelopes not included — so you can choose the perfect finishing touch.

Square cards. Heavyweight stock. Premium quality. Only at Mankey Monkey.

Find more pre-scored card blanks, in various weights and sizes on our website here.

NB
It is difficult to show accurate colours or the quality and finish and weight of our paper and card on a screen. If you are unsure of its suitability for your purposes we suggest you place a small order to try.
Cards are suitable for home printing, please always check your individual printer specifications prior to attempting to print, as we cannot guarantee all printers will accommodate thicker paper/card.