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MONT Extension Kit for Basic Greenhouse


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Price: $999.00
Regular price
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Price: $999.00


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Heartland Greenhouse and Garden Supply is pleased to offer our customers a safe, secure and simple way to Buy Now, Pay over Time!

About Shop Pay Installments

  • Shop Pay offers you the option to pay in full at checkout, or to split your purchase into regular payments!
  • Installment options vary by store and can be used on orders over $50 USD, including discounts, shipping, and taxes.
  • For purchases split into 4 bi-weekly payments, there are no additional charges or interest rates applied. Purchases split into monthly payments may be subject to interest.
  • You can pay your balance off early without penalty.
  • There are no late fees. However, partial or late payments may affect your ability to use Shop Pay Installments in the future.
  • Your credit scores aren't impacted if your purchase is split into 4 bi-weekly payments using Shop Pay Installments. If your purchase is split into monthly payments, then your payments may be reported to a credit bureau. 
  • To use Shop Pay Installments, your shipping address needs to be in the United States.  
  • Rates from 0%-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: Options depend on your purchase amount, and a down payment may be required. State notices to consumers

Availability: 100 In Stock


The MONT 4 foot extension kit is specifically designed for the MONT line of greenhouses. The idea is simple, as your gardening greenhouse needs grow so can you greenhouse. The 4 ft extension kit allows for the expansion of your greenhouse. The MONT is proudly made in the USA from start to finish. Each 4ft extension kit comes includes a 2ft x 2ft roof vent with automatic opener and gutters. When ordering your extension kit make sure that the color matches your existing greenhouse. 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. Integrated dual rain water 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 for assembly. Manual is fully illustrated.
  • Warranty10 yr limited warranty