Cardboard Design Resources, DIY Projects & Display Ideas
Cardboard Design Resources offer a general overview of the key elements in cardboard design, including tabs, folds, flutes, and structural components. This guide highlights how these features work together to create strong, functional, and efficient cardboard structures, helping you understand the basics of designing and assembling effective packaging solutions.
Corrugated Cardboard
Cardboard delivers versatile, lightweight performance across packaging, displays, and product protection. By adjusting its structure and composition, you can tailor it for greater strength, better appearance, and improved sustainability. As you explore its features, you’ll quickly see what makes cardboard so effective.
Flute types
Not all corrugated cardboard is the same. The size and shape of the internal flutes affect strength, weight, and surface finish. Here’s a quick look at how it’s made:
Paper Preparation
Cardboard starts as kraft or recycled paper, which is pulped, dried, and rolled into large sheets.
Corrugating the Medium
The middle layer, called the medium, is passed through corrugating rollers to form the wavy flutes.
Adhesive Application
Starch-based glue is applied to the peaks of the flutes to bond them to flat linerboards.
Lining
One or two flat sheets (liners) are pressed onto the fluted medium, forming single-face, single-wall, or double-wall board.
Drying and Cooling
The glued board passes through heated plates to cure the adhesive and stabilise the structure.
Cutting and Finishing
The board is trimmed, cut to size, and scored for folding into boxes, sheets, or other packaging.
Tri-Wall
Ultra-strong, triple-layer cardboard engineered for heavy-duty protective packaging.
Single-face
Single-face corrugated board with one liner; best for wrapping, cushioning, and lightweight packaging protection.
Engineering the Right Board Grade for Every Project
Poskraft brings decades of structural and design-engineering expertise to every board grade, delivering direct value to our clients. Our team actively matches the right flute profile and board grade—ranging from single-wall to double-wall and specialty flutes—to achieve the ideal balance of cost, strength, and weight.
Through our custom packaging evaluations, we ensure materials are not over-specified. If a project is using a heavier board than necessary, we recommend smarter, more efficient alternatives without compromising performance.
Within our design consultancy, we always factor in board grade performance, ensuring that every retail display, insert, or packaging solution we create meets both structural demands and visual quality.
Tabs & Structural Components
Tabs and structural components actively shape how a cardboard design locks together, carries weight, and maintains its form. As you explore these features, you’ll see how each one improves overall strength, stability, and functionality.
Fold Tabs
Fold tabs are designed to bend and tuck into slots or against surfaces, reinforcing edges or corners. They help shape, strengthen, and stabilise boxes without glue.
Locking Tabs
These tabs are small extensions that fit into slots to secure edges without glue. They hold flaps in place, and allow easy assembly and disassembly.
Gussets & Supports
Internal triangular structures that improve rigidity and allow clean folding behaviour.
Fold Lines / Creases
Scored areas allowing precise bending without cracking the cardboard surface.
Engineering Stronger Tabs & Structural Components
At Poskraft, we use our structural engineering expertise to ensure every tab, lock, and support component performs exactly as intended. We design locking systems that assemble smoothly, hold firmly, and maintain their integrity even with repeated use. As we refine each design, we optimise internal supports, braces, and connection points for maximum strength without adding excess material. By prototyping and stress-testing every structural element, we fine-tune performance for weight-bearing, stacking, transport, and demanding retail environments.
Whether it’s a complex POS display or a simple packaging insert, we ensure every structural element is purpose-built, reliable, and efficient.
Visit our store at https://poskraft.store to explore our ready-for-manufacture, tried-and-tested dielines.
Material Variants
Cardboard comes in a range of material variations, each offering different levels of strength, finish, and sustainability. Here’s a quick overview of the most common options and what they’re best suited for.
White Cardboard
Ideal for premium packaging and print-focused designs.
Kraft / Brown Cardboard
Eco-friendly and strong, commonly used for shipping and rustic branding.
Contact our cardboard engineer to discuss your needs.
Submit a quote request and we’ll get back to you in less than 3hrs!