Foam spacers and double-sided foam strips are ideal for shadow boxes, enabling clean, dimensional displays for photos, keepsakes, and pressed florals. This guide highlights five reliable options that suit different project needs—from small accents to bold 3D effects. Ideal buyers include crafters seeking quick 3D elevation, card makers layering elements, and hobbyists building layered shadow boxes. The quick-reference table below compares who each product is best for and why it stands out.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Joez Wonderful 6 Sheets Foam Adhesive Squares | General crafts and small details | Two sizes, abundant quantity, easy peel-and-stick |
| Outus 500 Pcs Double Sided Foam Strips | Shaker cards and cards with 3D elements | Varied sizes, strong EVA foam, versatile layouts |
| SIDAZON 600 Pcs Adhesive 3D Foam Strips | Layered scrapbook projects | Long strips, stackable for depth |
| Birllaid Adhesive Foam Strips | Shaker cards and invitations | Sticky back, easy cutting, 3D potential |
| Outus 12 Sheets Foam Adhesive Squares | Bulk shadow box setups | Large quantity, even sizing for consistent layers |
Joez Wonderful Foam Adhesive Squares (6 Sheets)

Includes six sheets of double-sided foam squares totaling 990 pieces. Two available sizes: 0.24×0.24 inches (6×6 mm) and 0.47×0.47 inches (12×12 mm). Each piece is pre-cut for easy removal and adhesion. Best for layered embellishments in small shadow box scenes or intricate card accents. A potential limitation is that very large depth requirements may need additional layers beyond the included counts.
Outus Double-Sided Foam Strips (500 Pcs)

Contains 500 EVA foam strips with dual adhesive. Ideal for shaker card crafts and shadow boxes needing dimension along borders or layered elements. Best for users who want a balance of quantity and varied strip sizes. Limitation: strips are designed for edge or border use; heavy, oversized elements may require multiple strips for stability.
SIDAZON Adhesive Foam Strips (600 Pcs)

600 pieces of double-sided foam strips, sized about 0.12 inches wide and 5.9 inches long. Great for adding a 3D glow to shaker cards and layered shadow-box scenes. Best for long, continuous depth lines or stacked builds. Caution: thinner strips may require careful alignment to avoid shifting during assembly.
Outus 500 Pieces Foam Strips (5.9 Inch)

An ample 500-piece package of dual-adhesive foam strips suitable for shaker crafts and general 3D effects. Works well for shadow boxes with varied card layers or keepsakes. Best for those who need reliable bulk strips with simple, straightforward application. Limitation: similar to other strips, not specialized for extreme thicknesses or heavy objects.
Birllaid Adhesive Foam Strips (10 Sheets)

Includes ten sheets of 6×4-inch foam strips with adhesive backing. Designed for 3D effects in shaker cards, scrapbooking, and invitations. Best for crafters needing easy cutting and versatile application across multiple projects. Caution: the adhesive strength is high, so test on delicate surfaces to avoid tearing edges.
ACFELLE Foam Dots (1000 Pieces)

Ten sheets include two sizes of double-sided foam dots (8 mm and 10 mm), totaling 1,000 pieces. These 1 mm thick dots enable stacked, layered effects with a controlled 3D appearance. Best for projects requiring precise dot placement. Limitation: smaller sizes may be less visible on very large shadow boxes.
Outus 2400 Pieces Foam Dots (Round 0.24 Inch)

Includes 12 sheets with 2,400 total round foam dots (0.24 inch). Adds a pronounced 3D effect and supports stacking for layered shadow boxes. Best for large-scale projects needing numerous accent points. Caution: ensure surfaces are clean to maximize stickiness over time.
Outus 12 Sheets Foam Squares (2160 Pieces)

Contains 12 sheets yielding 2,160 foam squares, each about 0.4 x 0.4 x 0.07 inches. Suitable for bulk shadow box builds and consistent layering. Best for large projects or classrooms where many identical spacers are needed. Note: sizes may vary slightly between batches, so plan accordingly.
Buying Guide
What size do I need? Consider the depth you want in your shadow box. Smaller squares work for fine detailing, while larger strips add bold elevation. If you’re making multiple pieces, bulk packs help maintain consistency across projects.
What material should I choose? Most options use EVA foam with a sticky backing. EVA is lightweight and easy to cut; it typically adheres to paper, fabric, wood, and plastic. For delicate surfaces, test a small area first.
How much adhesion is enough? A strong adhesive helps prevent buckling or detachment, especially in humid environments. If your display will be touched or handled often, prioritize higher-adhesion varieties or consider sealing surfaces first.
What is the best approach for shaker cards? For shaker cards or boxes, use strips or dots with even spacing to create a uniform 3D look. Stacking multiple pieces can amplify depth, but ensure the weight remains balanced.
FAQ
- Q: Are these spacers suitable for glass-front shadow boxes? A: Yes, most EVA-based spacers adhere well to glass and cardboard-backed displays with proper surface prep.
- Q: Can I cut these spacers to custom sizes? A: Yes, many come in sheets or long strips that can be cut with scissors for precise measurements.
- Q: Will the adhesive damage photos or delicate paper? A: Test on a small area first; some adhesives may peel or tear delicate materials if excessive force is used.
- Q: How do I store unused spacers? A: Keep them in a cool, dry place in their original packaging to prevent the adhesive from drying out.
- Q: Are these products washable or reusable? A: The adhesive backing is intended for single-use; removing and reusing may reduce stickiness.
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