Quick answer

Use mount board when the card front itself needs to feel rigid, hold a die-cut puzzle or photo, and survive handling as a keepsake; use cardstock when you need a foldable card base, easy layering, or a lighter mail-friendly card. Many cards work best with a cardstock base and a mount board front panel.

The real difference is stiffness, not just thickness

Cardstock is paper-based and bends readily, which is why it folds into card bases and layers without adding much weight. Mount board is a stiffer board intended as a firm backing or panel, so it resists bending and gives a card front a solid, premium hand-feel. That stiffness is the trade-off: a mount board panel will not fold like a card base, and it adds bulk to envelopes and postage.

For a card front, the practical question is whether you want the front to flex with the card or stay flat and rigid. If you plan to attach a photo, a die-cut puzzle, or a heavy embellishment, the rigid option prevents sagging and denting. If the design relies on a folded spine or lots of layered paper, cardstock is the more forgiving material.

Where mount board earns its place on a card front

Mount board is the better choice when the card front is the keepsake: a personalised puzzle card, a photo card that will be handled repeatedly, or a card with a die-cut aperture that needs a clean, firm edge. The supplied Crafter's Companion mount board is single-sided white and sized at 5.75" x 7.75", which suits a panel-style card front rather than a folded base. Because the board is white on one side, plan the design so the white face is the visible side or is covered by your artwork.

Die cutting is another reason to reach for mount board. The catalog describes this board as suitable for use with Multimedia Jigsaw Dies to create a personalised puzzle, so it is a sensible pick when the die-cut piece needs to stay flat and hold together in use. Cardstock can be die cut too, but a thin sheet may curl or tear at fine details; the stiffer board holds shape better, at the cost of needing a clean, sharp die and a machine that can handle the thickness.

Where cardstock still wins

Cardstock remains the default for folded card bases, colour matching, and layered backgrounds because it bends without cracking and comes in a wide range of colours and weights. If you are making a batch of cards to mail, cardstock keeps weight and bulk down. Mount board is not a substitute for a folded base, and the supplied product does not list a fold or score line, so do not assume it will fold cleanly.

A hybrid approach often solves the trade-off: build the card base from cardstock, then add a mount board front panel slightly smaller than the base. That gives you a foldable card with a rigid, keepsake-quality face. Keep the panel size in mind: the 5.75" x 7.75" sheet is a fixed size, so measure your card base before committing to a layout.

Mount board vs cardstock: trade-offs at a glance

  • Stiffness and hand-feel: Mount board stays flat and rigid, giving a premium card front; cardstock flexes with the card and feels lighter in the hand. Choose mount board when the card front is the feature; choose cardstock when the card should feel light and mail-friendly.
  • Folding and card bases: Cardstock is designed to fold into a card base; the supplied mount board is a flat panel with no stated fold or score line, so it should not be used as a folded base. If you need a folded card, start with cardstock and add mount board only as a front panel.
  • Die cutting and keepsakes: The supplied mount board is described as suitable with Multimedia Jigsaw Dies for personalised puzzles, where a stiff, flat piece matters; cardstock is easier to cut in fine detail but can curl or tear. For puzzle cards, photo panels, or apertures that must hold shape, mount board is the more reliable layer.

Product facts

Which should you use?

Choose mount board for card fronts if you are…

  • Making a keepsake card with a die-cut puzzle, photo, or heavy embellishment that needs a rigid front
  • Batch-making panel-style cards where a firm, white 5.75" x 7.75" front saves measuring and cutting
  • Creating a card that will be handled repeatedly and must resist bending or denting

Choose cardstock instead if you are…

  • Folding a standard card base or scoring a spine
  • Mailing lightweight cards where bulk and postage matter
  • Layering many coloured papers where flexibility and colour range are the priority