Harbor Freight  10x12 Greenhouse Modification
SKU: 70660522897

Harbor Freight 10x12 Greenhouse Modification

Sale price$44.99 Regular price$49.99
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Harbor Freight 10x12 Greenhouse ModificationHarbor Freight 10x12 Greenhouse Modification (patent pending) Video Here: youtube. com thirtyonecrafts Some of the items we designed and 3D printed for our greenhouse build. The Harbor Freight Greenhouse Modification is perfect if you haven't built your greenhouse yet. For a step by step guide on how to use these items and other helpful tips during your build, check out our YouTube video. Our video is very detailed and is separated into chapters for

Harbor Freight 10x12 Greenhouse Modification

 

(patent pending)
 Video Here: youtube.com/thirtyonecrafts

Some of the items we designed and 3D printed for our greenhouse build.  The Harbor Freight Greenhouse Modification is perfect if you haven't built your greenhouse yet.  For a step-by-step guide on how to use these items and other helpful tips during your build, check out our YouTube video.  Our video is very detailed and is separated into chapters for easy navigation.

 

Our build video: https://youtu.be/_5JKp4crMHE

If you have already constructed your greenhouse and you want to avoid worrying about the panels, we offer a spacer-only mod kit.

Are you needing to just inject silicone into your panel?  We have that tool too!

Quantities are based on the Harbor Freight 10x12 greenhouse product.  If you need different quantities or something else custom, please send an email to [email protected]

Below are Amazon links for the additional items we used during the construction of our Harbor Freight 10x12 Greenhouse.

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

This 3D printed kit will take around 24 hours to complete. If it is currently out of stock, we will have more available soon. We appreciate your patience and understanding.

Quantities are based on the Harbor Freight 10x12 greenhouse product.
If you need different quantities or something else custom, please send an email to [email protected]

This kit includes the following items.

60 - Center Panel Spacers

(Patent Pending)

Used when securing the center of panels to the horizontal bars.

*** 55 Total Needed ***

  • 4 Front Panels (none in the door panels)
  • 12 Roof Panels (none in windows/vents)
  • 15 Back Panels
  • 12 Left Panels
  • 12 Right Panels

 

70 - End Panel Spacers

(Patent Pending)

Used for securing the ends of panels to thin strips on the frame.

*** 61 Total Needed ***

  • 7 Front Panels
  • 6 Back Panels (2 at bottom center either side of base channel splice)
  • 12 Left Side Panels
  • 12 Right Side Panels
  • 24 Roof Panels (none in windows/vents)

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 Greenhouse Modification

Links to the other items we used in our build:

Qty Link
2 Glazing Clips 100 Pieces
9 Duck Brand Foam Weather-strip
10 Frost King 1/2" Rope Backer
2 #8 x 3/4" Self Piercing Screws
2 #8x1/2" neoprene Washers
1 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 will be 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: 70660522897

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CherylI
Grantham, US
★★★★★ 5
Great Product
Color: White
My dogs love it. They never get enough of it. Great product 👍🏻
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
Y
Verified Purchase
YADIER
Boise, US
★★★★★ 5
Perfect for playtime and exercise
Color: White
I’ve been using this automatic dog ball launcher since the day I received it, and it has honestly been amazing for both me and my dog. My pup took to it surprisingly fast, and now he plays with it every day without getting bored. I love the adjustable distance settings because I can use it indoors or outdoors depending on the weather. The toy is a very good size and quite practical. In the days I’ve been using it, the product's quality has really stood out, as it has proven to be highly effective. I believe it offers excellent value for the quality, and I recommend it if you are looking to keep your pet entertained.
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Reviewed in the United States on March 17, 2026
M
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MC84
Lowell, US
★★★★★ 3
Do Not Use The Balls That Come With It!
Color: White
This ball machine shows 6 meters or 19 feet. Unlike other ball launchers this is too powerful for indoor use. But I found that if you use different balls through experimentation then there are some that do not go as far.
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Reviewed in the United States on April 16, 2026
F
Verified Purchase
Francia
Pawtucket, US
★★★★★ 5
100 de 100 fabuloso
Color: White, Color: White
The best gift for my dog! I absolutely loved the design and its features—I can adjust the ball-launching distance, and the fact that it’s rechargeable is fantastic. The material of the balls is durable, too. My dog’s name is Oreo; I set up his toy in the yard, and it was so much fun watching him play outdoors. I’m currently teaching him how his new toy works. I highly recommend this for our four-legged babies—5 stars!
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Reviewed in the United States on March 18, 2026
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Doris Lindsey
San Leandro, US
★★★★★ 1
Worthless Dog Toy
Color: White
This is not what I ordered. I have two small dogs. It cannot be used inside my home .I tried it it bounce off the walls .it was very loud.it scared my b dogs . What a waste of money.i spend $103.00 on it.very disappointed
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Reviewed in the United States on March 28, 2026

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