Backing Boards (124 products)

Upgrade your framing projects with Mainline Mouldings’ professional picture framing backing boards. From lightweight foam boards and acid-free foam core to durable MDF, self-adhesive boards, and conservation kraft, we provide everything framers need for rigid, archival-quality support.

Choose from 3mm, 5mm & 10mm foamboard, 1.8mm–12mm MDF, self-adhesive, and FSC® certified boards, available as full sheets or precision cut-to-size. Perfect for framed artwork, canvases, mirrors, and fine art preservation.

Trusted by professional framers, galleries, and studios, our boards deliver exceptional quality, fast UK delivery on our own fleet of vehicles and trade pricing. We make it easy to complete every project with precision and efficiency.