SKU: 96633758989

Harbor-Freight Greenhouse 6x8 Modification Kit

Sale price$22.49 Regular price$24.99
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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

Harbor-Freight Greenhouse 6x8 Modification KitHarbor Freight 6x8 Greenhouse Modification Kit Video Here: youtube. com thirtyonecrafts Some of the items we designed and 3D printed for our greenhouse build. The Harbor Freight Greenhouse Modification Kit is perfect if you haven't built your greenhouse yet. View our YouTube video for use of these items and other helpful tips during your build. Our video is very detailed and is separated into chapters for easy navigation. If you have already built

Harbor-Freight 6x8 Greenhouse Modification Kit

 Video Here: youtube.com/thirtyonecrafts

Some of the items we designed and 3D printed for our greenhouse build.  The Harbor-Freight Greenhouse Modification Kit is perfect if you haven't built your greenhouse yet.  View our YouTube video for use of these items and other helpful tips during your build.  Our video is very detailed and is separated into chapters for easy navigation.

If you have already built your greenhouse and you don't want to worry about your panels, then we have the spacer only mod kit hereNeeding to just inject silicone into your panel?  We have that tool too!

Quantities are based on the Harbor Freight 6x8 greenhouse product.  If you need different quantities or something else custom, please send an email to [email protected]

Other items used during our Harbor Freight 10x12 Greenhouse build are below in the form of Amazon links.

All the items we designed and 3D printed for our greenhouse build.

This kit takes approximately 16 hours to print.  If we are out of stock we will have more soon.  Thank you for your patience.

Quantities are based on the Harbor Freight 6x8 greenhouse product.
If you need different quantities or something else custom, please send an email to [email protected]

The following items are included in this kit.

30 - Center Panel Spacers
(patent pending)
Used when securing the center of panels to the horizontal bars.*** 5 Total Needed ***
  • 2 Front Panels (none in the door panels)
  • 3 Back Panels 
35 - End Panel Spacers
(patent pending)
Used for securing the ends of panels to thin strips on the frame.*** 21 Total Needed ***
  • 2 Front Panels
  • 3 Back Panels 
  • 8 Left Side Panels
  • 8 Right Side Panels
Silicone Tube Tip Tool
(patent pending)
Used to help put silicone into the ends of the panels, takes a little practice.  We send 2 so you don't have to worry about cleaning them up, just toss them in the trash.
  • 2 - Silicone Tube Tip Tool

Harbor-Freight 6x8 Greenhouse Modification Kit

Links to the other items we used in our build:

  Link
  Glazing Clips 100 Pieces
  Duck Brand Foam Weather-strip
  Frost King 1/2" Rope Backer
  #8 x 3/4" Self Piercing Screws
  #8x1/2" neoprene Washers
  Gorilla Clear Silicone Caulk 6pk

Disclaimer:  We offer no warranties nor guarantees that these items will prevent any damage to your greenhouse.  It is also understood that these items are used at your own risk and liability.  These pieces are small, so please keep them away from small children.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 96633758989

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4.1 ★★★★★
Based on 12 reviews
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Verified Purchase
TAngell
Charlottesville, US
★★★★★ 4
Strong
Size: Medium 20", Style: 3 Knot, Pattern Name: Dog
For a five month old puppy with sharp teeth it’s holding up pretty well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
S
Verified Purchase
Shaienne
Battle Creek, US
★★★★★ 5
EXCELLENT QUALITY
Size: Medium 20", Style: 3 Knot, Pattern Name: Dog
I have a German Shepherd/Pointer mix who is 10 months old. He has been in the throes of teething and destructive exploration. He's chewed up clothing and shoes. He chewed a hole in our couch and one in our brand new mattress (He was never left home alone until this point but as my mother came to visit and my boyfriend was back at work, I had no choice but to trust him alone for about an hour a day for 3 or 4 days... he clearly didn't earn that trust). He loves ropes because he can gnaw them, whip them around, and play tug of war or fetch with them at any given time. We love ropes because they keep him occupied and relieve his desire to chew things. Unfortunately, he was destroying rope after rope after rope. Some ropes were worrisome because they would quickly start fraying and falling apart. We would have to help remove strings he has swallowed from his behind while he was out doing his business... My boyfriend's mother picked up a Mammoth TireBiter tire and rope toy for him but it was much too small. Still, he loved it and it stood up very well to his chompers despite being way too small/weak for him. Looking for a larger version of the Mammoth TireBiters, I stumbled across this rope toy and gave it a shot. Let me tell you, I don't think I will ever buy rope toys from any other brand! We have had this rope for over a month and it is still going strong. It does show some small signs of wear and tear but you would swear we bought it last week. It is very strong and durable. It has held up through many long gnawing sessions. It has been put through countless hours of fetch and tug of war with no signs of giving out any time soon. I am so in love with this rope and so is my pup!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2020
L
Verified Purchase
Lilly
Lake Worth, US
★★★★★ 5
Good quality
Size: Mini 10", Style: 3 Knot, Pattern Name: Dog
Small but good quality
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Reviewed in the United States on May 28, 2026
A
Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 3
Only for tug-a-war play.
Size: Small 15", Style: 3 Knot, Pattern Name: Dog, Size: Small 15", Style: 3 Knot, Pattern Name: Dog
This should only be advertised as a tug-a-war dog toy. I gave the toy to our 6 month old puppy and in, not even, an hour it was ripped apart. He’s not big enough for the larger ones yet. Not sure if I’ll try the next size larger.
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Reviewed in the United States on May 12, 2026
B
Verified Purchase
Beka
Fort Morgan, US
★★★★★ 5
Definitely worth the price
Size: Mini 10", Style: 3 Knot, Pattern Name: Dog
Not for heavy chewing. This rope is light and not as rigid as the others. My dog prefers this one over her other ropes and plays with it much more.
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Reviewed in the United States on March 10, 2026

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