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Door Frame Extension Kits

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  1. Riga Door Frame Extension Kit - 20" taller (III, IV, V)
    $320.00

    No Sales Tax *

    Riga Door Frame Extension Kit - 20" taller (III, IV, V)

    Riga Door Frame Extension Kit Adds 20"
    Learn More
  2. Riga Door Frame Extension Kit - 20" taller (IIs, IIIs, IVs)
    $269.00

    No Sales Tax *

    Riga Door Frame Extension Kit - 20" taller (IIs, IIIs, IVs)

    Riga Door Frame Extension Kit Adds 20"
    Learn More
  3. Riga Door Frame Extension Kit - 20" taller (XL)
    $449.00

    No Sales Tax *

    Riga Door Frame Extension Kit - 20" taller (XL)

    Riga Door Frame Extension Kit Adds 20"
    Learn More
  4. Riga S-Series Door Frame Extension Kit - 20" taller
    $450.00

    No Sales Tax *

    Riga S-Series Door Frame Extension Kit - 20" taller

    Riga Door Frame Extension Kit Adds 20"
    Learn More

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About Us

Riga Greenhouses are some of the best greenhouses money can buy. With excellent weather protection and overall strength and durability, you will be able to grow year-round in your own backyard. Included with every purchase of a Riga Greenhouse is a 15 year warranty on the frame and 10 year, prorated warranty on the glazing panels. With sizes ranging from 7'8" to 17'2" we're confident that you'll find a Riga greenhouse that fits your needs perfectly.

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