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Modern living room with neutral furniture and large sliding glass doors opening to a patio.

Sliding Patio Door Assemblies & Accessories

From knock-down frame assemblies to mullions and trim, explore installation assemblies and accessories designed to help make life easier.

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All Assemblies & Accessories

  • mullions

    Pella® Impervia®

    Select a mullion assembly/combination instruction from the list below.

    Instructions

    description Standard Joining Mullion for Sliding Patio Door

    English
    Spanish

    description Windows

    Structural Mullion for Sliding Patio Door
    English
    Spanish
    • interior trim

      Encompass by Pella® and ThermaStar by Pella® Trim

      Instructions

      description Sliding Door Frame Extender - Western US Only

      English
      • slidingpatiodoor_frameassembly

        Sliding Patio Door Knock-Down Frame Assembly

        A sliding patio door frame is assembled prior to installation.

        Aluminum Clad Wood Frame Assembly and Installation

        description Pella Lifestyle and Pella Reserve 2-Panel Knockdown Assembly and Installation Instructions (03/2025-Current)

        English
        Spanish

        slideshow Pella Lifestyle and Pella Reserve 2-Panel Knockdown Assembly and Installation Video (03/2025-Current)

        slideshow Pella Lifestyle and Pella Reserve 3-Panel Knockdown Assembly and Installation Video (03/2025-Current)

        slideshow Pella Lifestyle and Pella Reserve 4-Panel Knockdown Assembly and Installation Video (03/2025-Current)

        description Sliding Patio Door 3-Panel and 4-Panel Knock Down Assembly Instructions (03/2025-Current)

        English
        Spanish

        Pella® 250 Series Assembly and Installation

        description Pella 250 Series 2-panel Knock-Down Sliding Door Assembly

        English
        Spanish

        description Pella 250 Series 3-panel Knock-Down Sliding Door Assembly

        English
        Spanish

        description Pella 250 Series 4-panel Knock-Down Sliding Door Assembly

        English
        Spanish

        slideshow Pella® 250 Series Complementary Standard and Premium Sliding Patio Door Installation Video (05/2024 - 04/2026)

        description Pella® 250 Series Complementary Standard & Premium Sliding Patio Door Installation Instructions (05/2024 - 04/2026)

        English
        Spanish

        description Pella® 250 Series Sliding Patio Door & Multi-Slide Knock-Down Assembly and Component Installation (04/2026 - Current)

        English
        Spanish

        slideshow Pella® 250 Series Sliding Patio Door Block Frame Supplemental Installation Information Video (04/2026-Current)

        Pella® Impervia® Assembly and Installation

        slideshow Pella Impervia Sliding Patio Door Knockdown Assembly

        description Pella Impervia Sliding Patio Door Knockdown Assembly

        English
        Spanish

        Vista Aluminum Frame Assembly and Installation and Site Preparation

        description Pella® Vista Series Sliding Patio Door

        English
        Spanish

        description Pella® Vista Series Pivot Door

        English
        Spanish
        • fashions_vinyl

          Encompass by Pella® and ThermaStar by Pella®

          Select a door and window fashion instruction from the list below.

          Instructions

          description Sliding Door Blind and Shade Operation

          English

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            Contact us if you have questions about windows, patio doors or entry doors.

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