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8FT x 4FT Extension for Monticello Black Greenhouse MONT-4-BK

Regular price $119.99
Regular price $119.99 Sale price $119.99
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Shipping Price Match Returns Why Choose Planet Greenhouse?

The Monticello 4-foot extension kit is specifically designed for the Monticello line of greenhouses. The idea is simple: your gardening greenhouse needs to grow, and so can your greenhouse planting space!

Looking to expand your Monticello greenhouse's planting space? This 8ft x 4ft extension kit lets you do that while adding a 2ft x 2ft roof vent with an automatic opener and gutters. The extension kit comes in a variety of colors that matches your existing greenhouse, so it'll blend right in. And because it's made entirely in the USA, you can be sure of its quality and craftsmanship. So order your extension kit today and take your gardening game to the next level!


Why purchase this product?

This greenhouse extension lets you navigate to more planting space, thus promoting more harvest. As inflation strikes, it is important to think of sufficient ways to grow your own food in the most effective way. Especially when you are living in urban areas, this extra 4 ft extension kit planting space will save you a lot of money. The more space, the more food on the table!



This one is designed specifically for Black frames and will work with the following greenhouses: MONT-8-BK - MONT-12-BK - MONT-16-BK - MONT-20-BK - MONT-24-BK.



  • 49"W x 101"L x 90"H

  • Quick assembly construction.

  • Integrated flush base design. High impact UV stable 8mm twin-wall polycarbonate walls and roof. Heavy-duty extruded aluminum frame construction. Black electrostatically painted frame.

  • 1 - 2ft x 2ft roof vent with automatic openers. It has an integrated dual rainwater gutter system.

  • Full 10 yr warranty (strongest in the industry); Proudly designed and made in the USA!

  • Allow for a FULL weekend to Fully Assemble. Two people suggested assembly. The Manual is fully illustrated.



  • SKU #: MONT-4-BK

  • Color: BLACK

  • Material: Aluminum/ Polycarbonate

  • Size:  8.1 ft W x 4.1 ft. L x 7.6 ft. H

  • What's included / What's in the box? :  All Aluminum framework, all PC panels, hardware, instruction manual, screwdriver, and wrench

  • What's not included?: Greenhouse, plants, accessories

  • Fabric Content:  N/A

  • Care Instructions:  Soapy Water

  • Country of Origin:  USA

  • POWER SUPPLY:  none

  • If Uses Batteries - What Battery Type? :  N/A

  • If Uses Batteries - Number of Batteries Needed:  N/A

  • If Uses Batteries - Are batteries included? (Y or N) :  N/A

  • If Uses Batteries - Is a battery charger included? :  N/A

  • Assembly Required (Y or N):  Y

  • Product Length (IN): 49

  • Product Height (IN): 90

  • Product Width (IN) : 101

  • Height and Weight Capacity:  None

  • Spout Height (IN):  N/A

  • Spout Reach (IN):  N/A

  • Flow Rate (gallons per minute):  N/A

  • Warranty:  10 yr limited warranty