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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Jared Smith
West Palm Beach, US
★★★★★ 5
Good Product
Color: 2 Pack(black+red), Size: Medium
Very comfortable. Personally preferred over turtlenecks. Fits well for slim builds.
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Reviewed in the United States on September 5, 2025
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DH
Whiting, US
★★★★★ 2
Not worth the price.
Color: 2 Pack(black+white), Size: XX-Large
At best these T-Shirt should be in a 4 pack at maybe $10. Quality is not good, they are very thin, very stretchy and the collar does not hold its shape. Would not buy again.
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Reviewed in the United States on May 9, 2026
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Ron in Ohio
Whiting, US
★★★★★ 3
Nice fit but loose in the collar …
Color: 2 Pack(black+white), Size: X-Large
Quality material. A little loose in the collar.
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Reviewed in the United States on March 2, 2025
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Lizzy
Boise, US
★★★★★ 5
True to size and value for your money.
Size: 8.5, Color: Cognac
Got these for my husi. He was very pleased with the look and feel of it. Danced all night at his sister’s wedding. These bad boys were perfect with his sage coloured suit! He is an 8 1/2 and we got his exact size Fit perfectly with no complaints. Material is really strong too and the price was the best overall.
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Reviewed in the United States on December 5, 2025
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Elmer Castillo
Massapequa, US
★★★★★ 5
Tommy Hilfiger Berton
Size: 9, Color: Cognac
I bought these boots and I love how they fit. I wear them a lot for work. I really love them, they're a great product and I recommend them.
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Reviewed in the United States on March 6, 2026

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