SKU: 85887177106

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 6 - Aug 11

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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: 85887177106

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4.1 ★★★★★
Based on 22 reviews
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Verified Purchase
maggie medina
Pawtucket, US
★★★★★ 4
Keeps him busy. Puppy proof
Size: 6 Inch, Color: Independence Day
Thankfully I bought 2. One of the pumps broke as I was trying to blow up. That is the reason i did not give then 5 stats. This is a great toy for my puppy. Keeps him entertained and is pretty sturdy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Great for dog self play
Size: 6 Inch, Color: Red, Size: 6 Inch, Color: Red
So much fun for my puppy. Easy to grab and throw for him to play alone. Durable for a medium dog. This is his favorite toy. I also bought one for my friends cattle dog puppy who went bonkers with it. Yet her dog liked to chew the tags off. So I wouldn’t recommend for chewers.
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Reviewed in the United States on May 27, 2026
D
Verified Purchase
Dawn L
Waukegan, US
★★★★★ 5
Fun to fetch
Size: 5 Inch, Color: Red, Size: 5 Inch, Color: Red
Perfect size for my 1 yr old Cavapoo that is ball obsessed. This ball is fun to toss around in the yard to exercise and wear out my energetic boy. Perfect for after my work day when I don’t have the energy to match his energy level. He gets to run and chase and I can enjoy his playtime too. Overall the ball is durable and I have confidence it will last for a very long time. We have 2 sizes, small and medium, for my 30 pound athletic pup. He enjoys both equally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
B
Verified Purchase
brownie2009
Draper, US
★★★★★ 5
Dog loves them
Size: 6 Inch, Color: Independence Day
My dog loved the first ball I got her, so I got her a second one. Both hhavr been very durable (she likes to puncture things with her teeth). I left each ball slightly deflated, so they were still firm, but she could bite them without issues. She has not punctured either ball yet. I did have to watch her because she started trying to chew the tabs off because she was bored. She has not chewed one off, just started thinking about it, and did a tiny bit of damage to one tab. She loves these balls. We have played tug of wat with them too, so yhe tabs are sturdy, and so is the ball. The dog did not care what collar she got, so I grabbed the least expensive one, and the 6 inch. She is a medium sized dog with razor teeth, and these work great.
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Reviewed in the United States on March 15, 2026
R
Verified Purchase
Russell Taft
Waukegan, US
★★★★★ 4
Not recommended for the aggressive player..
Size: 6 Inch, Color: Red, Size: 6 Inch, Color: Red
First this ball was not delivered when it should have been. Second, the tabs are poorly made. One day of my dog playing with it and the tabs are already torn up. The ball itself is fun for her and has not deflated for now at least.
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Reviewed in the United States on May 10, 2026

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