JamJar Print Backing Board A3, 620gsm, 10 Sheets, White, Silky Coated, Heavy Duty Card Stock

• 620gsm backing board: ultra-thick, rigid card at 620gsm gives exceptional structural strength for mounting, framing, bookbinding, and craft bases where a solid foundation is essential
• A3 size, 10 sheets per pack: each sheet measures 420 x 297mm, giving you a generous working surface for large-format projects, display boards, and backing for artwork or prints
• Silky coated finish on both sides: the smooth, lightly coated surface accepts inkjet and laser printing cleanly, and is well-suited to writing, stamping, or applying adhesive films without bleed-through
• Made in the UK: produced domestically by JamJar Print to consistent quality standards, with reliable brightness and weight accuracy across every sheet in the pack
• Versatile heavy card for professional and home use: ideal as a stiff backing behind framed pictures, a rigid base layer in scrapbooks and albums, or a sturdy substrate for signage, menus, and packaging prototypes

JamJar Print 620gsm backing board in A3 gives you a seriously stiff, durable sheet for projects that demand more than ordinary card can offer. At 620gsm this board sits at the heavier end of what most home and small studio users will ever need, providing the kind of rigidity that holds its shape under pressure, behind glass, or as a structural layer within bound books and portfolios. The silky coated surface keeps things smooth and printable, so whether you are running sheets through a laser printer for signage or applying hand-cut elements with glue, the surface holds up without warping or buckling. Each A3 sheet at 420 x 297mm gives plenty of room for larger compositions, and the pack of ten means you have enough to work through a project without constant reordering. The white finish is clean and neutral, making it a natural companion to photography, artwork, and printed graphics where you want the content to stand out rather than the substrate. Suitable for picture framing, display boards, box-making, die-cutting, and anywhere else a firm, flat, white surface is called for.