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ECMA D20.20.21.00

Nestable Webbed-Corner Tray

  • Available in a wide range of custom configurations & material selection.
  • Order 1 sample. Or order 100K+ units. Or anything in between.
  • Affordable delivery across North America.
  • Design support, warehousing, testing, assembly available.
  • Widest machinery capability in America via 30+ specialist partner plants.
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Product details

Top highlights

  • Continuous webbed corners prevent bottom leaks
  • Splayed walls allow erected trays to nest
  • Delivered flat for fast manual or automated pop-up

About this product

The D20.20.21.00 is a four-corner glued tray featuring webbed gussets instead of cut corners. Because the board remains continuous through the base corners, this design provides excellent resistance against leaking grease, sauces, crumbs, or fine powders when paired with the right coated board.

The walls are slightly splayed, allowing erected trays to nest inside one another to save space at fulfillment stations. It is delivered flat, opens quickly when pulled, and is often compatible with automated tray erectors.

Common uses

  • Bakery and catering trays
  • Fast food and takeout containers
  • Agricultural produce trays
  • Powder or small-parts kitting

Get a quote

Share what you know. We'll take it from there. Or email us at info@herculeindustrial.com

Best Price Guarantee

Already have a packaging quote? Let us beat it.

Send us the quote you have. We will beat it for the same specifications, quantity, and delivery requirements.

Upload a competing quote

Free quote review. No obligation.

30+specialist partner plants

We supply through the plant best suited to your price, material, production, and delivery requirements.

Why we can beat a lower quote

30+ plants give us more ways to lower the price.

Each plant has different machinery, material costs, order minimums, and freight rates. Our buying volume helps us secure better pricing. We then quote through the plant that gives you the lowest total price for your requirements.

Send us your current quote. Watch us beat it.

Attach it to the quote form or email it to us. We'll review it free and send you our price.

Upload a competing quoteinfo@herculeindustrial.com
Best Price Guarantee terms

To qualify, send a written supplier quote dated within the past 30 days and addressed to your company. It must cover the same dimensions, construction, material, print, finish, quantity, tooling, freight, delivery date, and delivery location. The guarantee does not cover taxes, expired quotes, liquidation or clearance sales, or obvious pricing errors.

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Food Service, Agriculture, and Powder Containment

Bakery, Catering, and Fast Food

The continuous corners trap grease, sauces, and crumbs that would otherwise escape through the gaps of a standard tray. When manufactured with a barrier-coated board, it serves as a reliable primary container for food service.

Agricultural Produce

For fresh produce that may release moisture or dirt, the sealed bottom corners keep debris contained during transit and display.

Powders and Granular Goods

For fine agricultural seeds or powders, the webbed gussets prevent small particles from sifting out during handling.

Industrial Small Parts Kitting

When packing tiny screws, bearings, or components, the continuous corners ensure nothing slips out of the bottom of the tray.

High-Volume Fulfillment and Space-Constrained Packing

High-Speed Automated Packing Lines

The splayed walls allow erected trays to be nested in tall stacks at the packing station. This reduces the footprint of ready-to-use packaging and supports automated denesting equipment.

Space-Constrained Retail Counters

For fast-food or bakery environments with limited counter space, nested trays keep a large supply of packaging within easy reach without cluttering the workspace.

Messy or Wet Environments

When the packing environment or the product itself involves liquids, grease, or fine powders, the continuous corner design reduces cleanup and prevents leaks.

When to Consider Standard Corners or Manual Assembly

Standard 4-Corner Glued Trays

If your product is dry, solid, and does not need leak resistance, a standard cut-corner tray (D20.20.20.00) is often simpler to glue and may run faster on some folder-gluers.

Short-Run or Trial Programs

Because four-corner gluing with diagonal web folds involves specific machine setup, very short runs or trials may be more practical using an unglued, manually locking tray (D10.21.04.00).

Coatings, Nesting Angles, and Board Selection

Barrier Coatings and Glue Zones

If you need moisture or grease resistance, the board will likely use a specialized coating. You should discuss this early so the manufacturer can leave precise, uncoated zones where the webbed gussets are glued.

Nesting Angle (Wall Splay)

The walls lean outward to allow nesting. This angle can be adjusted to match your specific denesting machinery or shelf-space requirements, though extreme angles can change how the gussets fold.

Board Grade and Flute Choice

While folding carton board is common, micro-flute corrugated can sometimes be used for heavier items. The diagonal folds on the webbed gussets should be tested to ensure the flutes do not crack.

Packing Line Setup

Determine whether the trays will be popped open by hand or fed through an automated denester. This helps finalize the wall splay angle and the stiffness of the board.

Adjusting the Wall Splay and Gusset Geometry

Footprint and Depth

Length, width, and height are fully adjustable. Deeper trays use larger webbed gussets, which should be checked against the folding limits of the chosen board.

Wall Splay Angle

The bevel angle controls how tightly the trays nest. Adjusting this changes the footprint of the top opening relative to the base.

Gusset Profile

The top edge of the webbed gusset can be adjusted with a cut offset and fillet radius to prevent sharp corners from interfering with the product or the nesting process.

Board and packing details

Vertical Compression Limits

Because the walls are splayed and the top is open, this tray offers very little vertical stacking strength on its own. It relies on an outer master shipper or a dedicated racking system to bear weight during transit.

Additional notes

Grease and moisture barriers

When packing food or agricultural goods, the continuous corners do the mechanical work of containing the product, but the board's surface coating is what prevents grease or moisture from soaking through the panels.

Related Trays and Lidded Alternatives

D10.21.04.00: Unglued Fold-Over Tray

A manually assembled tray that avoids folder-gluer setup, making it practical for short runs or hand-packing stations.

FAQs

Product Fit and Containment

Is this tray completely waterproof?

The webbed corners provide a continuous physical barrier against leaks, but true liquid-tight performance depends entirely on selecting a barrier-coated board and a compatible adhesive.

Packing and Assembly

Is manual assembly needed for this tray?

It is delivered flat and opens quickly when pulled. It is often compatible with automated tray erectors and denesting equipment.

Storage and Handling

Can we stack these trays once they are loaded?

The splayed walls and open top mean the tray cannot support heavy top loads. If you need to stack them on a pallet, they usually need an outer master shipper.

Materials and Route

Can this be made from corrugated board?

It is typically made from folding carton board. Micro-flute corrugated can sometimes be used, but the diagonal folds on the webbed gussets should be tested to ensure the flutes do not crack.

Production Path

Why might a manufacturer suggest a different tray style?

Gluing the diagonal webbed corners involves a folder-gluer with specific 4-corner attachments. If a production facility does not have this equipment, they may suggest a standard cut-corner tray or a manually locking design.

Design Adjustments

Can the angle of the walls be changed?

The bevel angle is adjustable to control how tightly the trays nest together. However, keeping the angle within normal limits helps the corner gussets fold correctly without tearing.

Product Fit and Containment

What happens if the product is very heavy?

Heavy or dense products can push outward on the splayed walls. This puts tension on the glued webbed corners, so the adhesive bond and board strength should be tested for your specific payload.

Materials and Route

How does a barrier coating affect the gluing process?

Standard glues do not stick well to grease-resistant or waterproof coatings. The manufacturer will leave specific uncoated areas on the blank where the webbed corners need to be glued.