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18x20 Pergolas

We offer a wide selection of 18x20 pergola kits, including both free-standing and house-attached kits, those with a shade canopy on top and those made for a slatted wood roof, and some with smaller-sized posts & beams and others with larger ones. If none of these kits meet your needs, use our 30-second kit designer tool to create your ideal pergola.

  • Attached 18x20 Pergola Off House with Roof - Kit for 4x4 Wood Posts

    Original price Starting at $999
    Original price Starting at $999
    Original price $999
    Starting at $799
    Starting at $999 $799
    Current price $799
    Original price $999
    20% Off

    About this Pergola Kit Configuration: Type: Attached to house (see the free-standing version of this kit) Dimensions: 18' attached to house x 20' o...

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  • Wall-Mounted 18' x 20' Pergola with Shade Covers (4) - Kit for 4x4 Wood Posts

    Original price $1,699
    Original price Starting at $1,699
    Original price $1,699
    Current price $1,349
    Original price $1,699
    Starting at $1,699 $1,349
    Current price $1,349
    Original price $1,699
    21% Off

  • 18' x 20' Pergola Attached to House with Roof - Kit for 6x6 Wood Posts

    Original price Starting at $1,879
    Original price Starting at $1,879
    Original price $1,879
    Starting at $1,499
    Starting at $1,879 $1,499
    Current price $1,499
    Original price $1,879
    20% Off

    About this Pergola Kit Configuration: Type: Attached to house (see the free-standing version of this kit) Dimensions: 18' attached to house x 20' o...

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  • Attached 18 by 20 Pergola and Canopies (4) - Kit for 6x6 Wood Posts

    Original price $2,569
    Original price Starting at $2,569
    Original price $2,569
    Current price $2,049
    Original price $2,569
    Starting at $2,569 $2,049
    Current price $2,049
    Original price $2,569
    20% Off