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FEFCO 0973

Triangular Corner Brace Pad

  • 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

  • Creates a deep diagonal crumple zone for heavy items
  • Requires manual folding and tension-holding during insertion
  • Uses simple straight creases instead of complex shaped cuts

About this product

A single piece of corrugated board that folds into a rigid, right-angled triangular truss. Wedged into the corner of a master shipping box, it creates a deep structural air gap that absorbs heavy impacts and protects fragile edges.

Because it uses simple parallel creases, this pad can often be produced without shaped cuts. The trade-off happens on the packing bench. Operators must fold the heavy board against its natural spring-back and hold it closed while inserting it into the box.

Common uses

  • Appliance and heavy equipment packaging
  • Furniture edge protection
  • Industrial component shipping

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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Heavy-duty corner protection jobs

Appliance and heavy equipment packaging

The hollow triangular shape creates a standoff distance between the outer box and the product. This gives heavy items a dedicated crumple zone to survive corner drops.

Furniture edge protection

Protects vulnerable 90-degree corners on desks, tables, and case goods. The broad diagonal face distributes impact force across a wider area of the product.

Industrial machinery components

Shields heavy, sharp-edged industrial parts that might otherwise puncture standard corrugated boxes during transit. The deep air gap keeps the product away from the outer walls.

Framed glass and large displays

Creates a standoff buffer for large, fragile flat items shipped vertically. The diagonal face spreads the load, reducing localized pressure on the frame.

Industrial and large-format shipping

Industrial manufacturing

Useful for teams looking to replace bulky EPS foam blocks with flat-shipping corrugated alternatives, provided they can test the specific crush limits of the board.

Manual fulfillment operations

Fits well in operations where manual pack times are acceptable for high-value protection. The operator must use two hands to fold the pad and maneuver it into the box corner.

Low-volume prototype shipping

When testing new heavy products, a simple folded pad is easier to trial and adjust than molded foam or complex die-cut inserts.

When to consider a different corner pad

When packing speed is the top priority

If operators struggle to hold the tensioned board closed while packing, compare this to a self-locking triangular brace. The locking version stays folded on its own, though it requires shaped cuts to create the locks.

When you only need light scuff protection

If the product is lightweight and does not need a deep air gap, a simple folded L-pad is faster to pack and uses less material.

Close variants and lookalike dielines

The closest library neighbors include 0974, 0975, 0972. Use this as a variant check if a buyer brings an old code, sample, or dieline that looks close. The deciding details are usually the lock, slot, closure, wall build, part count, or fold sequence.

Board, fit, and packing line choices

Board grade and folding fatigue

Heavy double-wall board provides maximum crush resistance for the truss. However, thicker board is exhausting to fold manually and fights back harder during insertion. You must balance protection needs with operator ergonomics.

Master box clearance

This pad has no locking tabs or glue. It relies entirely on the 90-degree corner of the master box to prevent the board from springing open. The outer box must be sized correctly to hold the pad tight against the product.

Product weight and flute direction

If the pad needs to support top-load weight, the flutes should be oriented vertically. This turns the folded triangle into a strong corner pillar inside the master box.

Assembly space on the pack bench

Operators need physical room to fold the board and hold it under tension before inserting it into the box. Tight packing stations may struggle with large versions of this pad.

Sizing the diagonal face and height

Diagonal face width

You specify the width of the diagonal face that touches your product. The lengths of the two outer legs are then mathematically calculated to form a perfect right angle based on your chosen board thickness.

Pad height

The pad can be cut to run the full vertical height of the master box, or kept short to act as a localized buffer just for the bottom corners.

Board thickness compensation

When changing from single-wall to double-wall board, the fold allowances must be recalculated. If the outer legs are not adjusted for the new thickness, the pad will not form a true 90-degree angle.

Board and packing details

Flat delivery and storage

Because these are simple rectangular strips with parallel creases, they ship and store perfectly flat. This allows for maximum pallet density compared to pre-glued or foam corner blocks.

The geometry constraint

If you change the board thickness later, the fold allowances and leg lengths must be recalculated. If the math is wrong, the pad will bind or gap instead of seating cleanly in the corner.

Additional notes

Pack-bench ergonomics

Folding heavy double-wall board all day can cause severe operator fatigue. If you specify a very heavy board, test the folding effort with your packing team first.

Master box sizing

This pad does no good if it can shift around. The master box must be sized tightly enough to hold the pad firmly against the product.

Related corner protection

0903: Simple L-Pad

A basic two-panel fold that provides a single layer of corner protection without the deep air gap.

0975: Corner Brace Pad

Nearby FEFCO style to review if the buyer wants a similar job but the closure, flap overlap, wall build, or part count changes the package choice.

0972: Corner Protector

Nearby FEFCO style to review if the buyer wants a similar job but the closure, flap overlap, wall build, or part count changes the package choice.

FAQs

Assembly and packing

Does this pad stay folded on its own?

No. It is an unfastened piece of board. The operator must fold it, hold it closed against the board's natural spring-back, and wedge it into the master box. The box walls keep it closed.

Can this be used on automated packing lines?

Rarely. Because the board springs back and requires two hands to hold closed during insertion, it is a poor fit for automated pick-and-place lines.

Protection and fit

Can this replace EPS foam corner blocks?

Many industrial shippers use corrugated trusses to replace foam. The exact performance depends on the board grade and the weight of your product. It requires physical drop testing to confirm it meets your standards.

Production and cutting

Does this pad require shaped cutting dies?

Usually no. Because the design uses only straight cuts and parallel creases, it can often be produced on basic slitter-scorer machines without shaped cutting dies.

Material choices

How does board thickness affect this design?

Thicker board increases the crush resistance of the corner. However, it also makes manual folding much harder and requires the fold allowances to be adjusted so the pad still forms a clean 90-degree angle.

Specification

What dimensions define this pad?

You need to specify the width of the diagonal face that will touch your product, the total vertical height of the pad, and the board grade you want to use.

Protection and fit

Can I use this pad for lightweight items?

You can, but a simple L-pad is usually faster to pack and uses less material if the product does not need a deep air gap.

Does the pad support top-load weight?

Yes, if the flutes are oriented vertically, the folded triangle acts as a strong corner pillar inside the master box, helping to support stacked weight.