Sigma 26 Greenhouses

Browse every 26 ft long Sigma Greenhouse model, including Gen II, Gen III, Medium, and Small options. Choose the width and configuration that fits your garden while enjoying the same extended 26 ft growing length.

  • Sigma 26 (Gen II) Sigma 26 (Gen II)

    Sigma 26 (Gen II)

    Sigma 26 (Gen II)

    Size: 10' × 26' × 7'
    $3,700 USD
    $4,100 USD Save $400 Sale $3,700 USD
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  • Sigma 26 (Gen III) Sigma 26 (Gen III)
    160 kg/m² (32 psf)Snow Load

    Sigma 26 (Gen III)

    Sigma 26 (Gen III)

    Size: 10' × 26' × 7'
    4.9
    Rated 4.9 out of 5 stars
    17 Reviews
    $4,150 USD
    $4,550 USD Save $400 Sale $4,150 USD
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  • Sigma 250 (Gen III) greenhouse in a garden setting with trees and flowers Metal Sigma 250 (Gen III) greenhouse structure in a warehouse setting - Planta Greenhouses EU.
    160 kg/m² (32 psf)Snow Load

    Sigma Medium 26 (Gen III)

    Sigma Medium 26 (Gen III)

    Size: 8' × 26' × 7.5'
    $4,050 USD
    $4,450 USD Save $400 Sale $4,050 USD
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  • Sigma 2x8 (Gen III) greenhouse with a curved glass roof and walls on a grassy area. Clear polycarbonate Sigma 2x8 (Gen III) greenhouse in a backyard with trees and flowers- Planta Greenhouses EU.
    160 kg/m² (32 psf)Snow Load

    Sigma Small 26 (Gen III)

    Sigma Small 26 (Gen III)

    Size: 6.5' × 26' × 8'
    $3,950 USD
    $4,350 USD Save $400 Sale $3,950 USD
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Other Sigma Greenhouse Sizes

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