Starborn Structural Lumber Pro Plug System

Starborn Structural Lumber Pro Plug System

Regular price $457.36 USD
Regular price Sale price $457.36 USD
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Color: Black / Obsidian
Length: 6"
Count: 50 Ct
Quantity
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Product Description

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The Starborn Pro Plug System for Structural Composite Lumber brings hidden fastening to structural composite lumber connections, matching Starborn's structural wood system but engineered specifically for composite material. Plugs are made from the actual structural composite board itself, giving a true color and texture match rather than a generic filler.

This kit uses the Black Exterior Grade Coating screw with a Tri-Forge point for faster, easier insertion and reduced splitting during installation.

Installation (3 steps):

  1. Pre-drill the counterbore using the Pro Plug System Structural 22mm Forstner Bit, with the Smart-Bit Depth Setting Collar aligned to its second groove (both sold separately)
  2. Drive the appropriate structural screw fully seated into the hole — do not overdrive
  3. Tap the composite plug into place with a smooth, large-faced hammer until flush with the surface

The system uses a T40 star drive on a flat head screw and is built for material 2" nominal thickness or greater. Follow the composite lumber manufacturer's specifications for screw spacing and edge/end distances.

Key Features:

  • Hidden fastening system for structural composite lumber connections
  • Plugs made from actual structural composite board material for a true match
  • Black Exterior Grade Coating with Tri-Forge point for easier insertion and reduced splitting
  • Flat head, T40 star drive
  • Kit includes matched screws and plugs; Forstner bit and depth-setting collar sold separately
  • Designed for material 2" nominal thickness or greater
  • Approved for ACQ/pressure-treated lumber; 316 stainless version available for saltwater environments
Hidden fastening system for structural composite lumber — plugs are made from actual board material for a true, invisible match.
Hides structural screws with plugs cut from real composite board material Tri-Forge point eases insertion, reduces splitting Simple 3-step install

Warranty + Resources

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Why choose composite decking?

Composite decking stands apart from wood thanks to features that make it easier to own and maintain.

  1. Built to last

    Enjoy long-term durability that outperforms traditional wood decking.

  2. Design freedom

    Choose from a wide range of colors to create a look that’s uniquely yours.

  3. Weather-ready

    Built with advanced materials that resist rot, moisture, and warping.

  4. Easy to maintain

    With simple, occasional cleaning, your deck stays looking clean and polished

Design It. Build It. Love It.

Your deck starts with a great plan. Use our decking design tool to explore layouts, materials, and finishes in a realistic, easy-to-use experience. See what’s possible and move forward with confidence—no surprises, just better builds.

Frequently Asked Questions

What if I have a custom project?

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Great – we love ‘em. Our team of experts has plenty of experience with tailoring a customized project. Talk to one of our associates on the floor, give us a call, or drop us a line to get started.

How soon do I recieve my decking items?

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For Small Boxed Items:

We offer a 1-2 day turnaround for small boxed items and a tracking number will be provided to keep you updated on the status of your delivery.

For LTL Freight (Common Carrier) Items:

We use LTL freight for safe and efficient delivery. Your order will be scheduled for delivery, and it's important to note that for decking deliveries, a homeowner needs to be on hand to unload the product. This ensures a smooth and hassle-free delivery process. Rest assured, we're here to make the process as convenient as possible for you.

  1. Order Packed and Shipped, Watch for Our Email:
    Once our team has meticulously packed your order onto a pallet for safe shipment, we're on the move. You can expect an email notification as your order leaves our facility, keeping you in the loop right from the start.

  2. Coordinate Your Delivery Time:
    We understand the importance of your project, so we aim to schedule deliveries at your convenience. The shipping company will get in touch with you to arrange a suitable delivery time, and the delivery truck will meet you at your designated location.  

  3. Receive Your Shipment:
    At the agreed-upon time, the delivery truck will arrive at your specified location. You’ll inspect your order at the delivery site as it’s unloaded from the truck. You have a few options when it comes to semi truck delivery, which are hand unload (the standard delivery), liftgate, and flatbed/forklift. If you’re looking for something other than hand unload, please let us know at the time you schedule your delivery.

  4. Inspect and Unload Your Shipment:
    After your items have unloaded, please inspect each item, ensuring that nothing incurred damage during transit. If anything is damaged or missing, please indicate it on the delivery receipt and contact us at (855) 603-3325. 

What is The Deck Store Advantage?

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If you need it, we’ll get it! As your one-stop deck shop, you’ll find everything at your fingertips, or we’ll get it shipped out to you anywhere in the continental U.S. 

The Deck Store takes the guesswork out of pulling your project together. Stop by our local retail store in Knoxville, or enjoy hassle-free online ordering. 

Our customers are our #1 priority, and we’re dedicated to bringing you quality decking supplies. Our customer promise is to carry the highest quality products, so you can enjoy your deck or dock for years to come with minimal maintenance.