YakAttack ShortStak Upgrade Kit for BlackPak Pro - Stackable Kayak

In this review the ShortStak Upgrade Kit for the 13 in x 13 in BlackPak Pro is evaluated as a practical stackable storage add-on for anglers and paddlers who need faster access to tackle and tools. The biggest reason to consider it is simple: it converts an existing BlackPak Pro into a dual-layer system that keeps frequently used items on top and organized without replacing the base box. The kit is not a standalone container and must be attached to a compatible BlackPak Pro, so it is aimed at users who already own that system.

Key Features

• Stackable storage: Adds a second layer to a 13 in x 13 in BlackPak Pro so essentials are easier to reach while on the water.
• GridLoc mounting panels: Molded GridLoc screw bosses on all sides let you fit accessories such as MightyMounts or TracPaks where you need them.
• Included hardware: Comes with panels, latches, bumpers, hinges, straps, and stainless steel hardware so assembly is straightforward with tongue-and-groove joints.
• Not standalone: Designed specifically to mount on top of a BlackPak Pro, reducing weight and redundancy by sharing components with the base box.
• Durable materials: Made from UV-stabilized injection-molded polymers and built in the USA to withstand harsh marine conditions.

Who It's For

The ShortStak Upgrade Kit fits anglers, kayak anglers, and small-boat users who already own a 13 in x 13 in BlackPak Pro and want quicker access to tackle trays, tools, or rigging accessories without adding a separate box. It suits people who value modular systems and like mounting options for lights, rod holders, or camera mounts using the GridLoc pattern.

It is not for buyers looking for an independent storage box; the kit has no lid and relies on the BlackPak Pro for base support. If someone does not already have the compatible base or prefers a single sealed container, they should look at full standalone crate options instead.

Pros & Cons

Pros

• Creates a practical dual-layer organization system for faster access to frequently used gear.
• GridLoc panels expand mounting possibilities for accessories and customization.
• Includes the necessary hinges, latches, bumpers, straps, and stainless hardware for assembly.
• Lightweight, UV-stable polymer construction made in the USA for marine durability.

Cons

• Not a standalone box and requires a BlackPak Pro base and shared components to function.
• Some customers mention mixed feelings about value for money compared with buying other storage options.

Specifications

Product type	Stackable storage add-on
Compatible base	13 in x 13 in BlackPak Pro
Includes	GridLoc panels, latches, bumpers, hinges, straps, stainless steel hardware
Mounting pattern	GridLoc screw bosses on all sides
Construction	UV-stabilized injection-molded polymers
Country of manufacture	Made in USA

Our Verdict

The ShortStak Upgrade Kit is a solid modular add-on for current BlackPak Pro owners who want faster access to tackle and the flexibility to mount accessories. It delivers durable construction and straightforward assembly, making it a smart choice for anglers who already invested in the BlackPak system, though buyers should accept that it is not a standalone solution.

Frequently Asked Questions

Can this unit be used by itself?
No. The ShortStak Upgrade Kit is designed to mount on top of a 13 in x 13 in BlackPak Pro and does not include a lid or base to function alone.

What mounting options are available?
The kit features molded GridLoc screw bosses on all sides, allowing attachment of MightyMount-style accessories, Through Hull Kits, TracPaks, and other GridLoc-compatible gear.

Is hardware included for assembly?
Yes. Panels, latches, bumpers, hinges, straps, and stainless steel hardware are included so you can assemble the add-on with tongue-and-groove panel joints.