Toggle menu
  • LoginorSign Up
  • 0
Signet Fence & Rail Supplies
×
×

    Main Menu

  • Fences
    • Chain Link Fencing
    • Ornamental Aluminum Fences
    • Vinyl Fences
    • Gate Hardware
    • Fence Post Anchors
    • Tension Wire & Utility Wire
    • Barb Wire & Razor Wire
    • Post Caps
    • Fence Accents
    • Fence Brackets & Post Adapters
  • Railing
    • Aluminum Deck Railing
  • Hardware & Tools
    • Bolts & Fasteners
    • Paints & Coatings
    • Cutting Tools
    • Measuring Tools
    • Digging Tools
    • Specialty Fencing Tools
    • Stretching & Pulling Tools
  • Outdoor Living
    • OZ-Deck: Deck Foundation System
    • Arbors & Pergolas
    • Ornamental Wood Ties (OWT) Hardware
  • Get a Quote
  • About Us
  • Contact Us
  • The FenceLine
  • Shop By Category

  • Fences
    • Chain Link Fencing
    • Ornamental Aluminum Fences
    • Vinyl Fences
    • Gate Hardware
    • Fence Post Anchors
    • Tension Wire & Utility Wire
    • Barbed Wire & Razor Wire
    • Post Caps
    • Fence Accents
    • Fence Brackets & Post Adapters
  • Railing
    • Aluminum Deck Railing
  • Hardware & Tools
    • Bolts & Fasteners
    • Paints & Coatings
    • Cutting Tools
    • Digging Tools
    • Measuring Tools
    • Specialty Fencing Tools
    • Stretching & Pulling Tools
  • Outdoor Living
    • Oz-Deck: Deck Foundation System
    • Arbors & Pergolas
    • Ornamental Wood Ties (OWT) Hardware
  • Shop By Brand

  • Bufftech
  • Multiple
  • OZCO Building Products
  • Catalyst
  • Classy Caps
  • Dac Industries
  • Digger Specialties
  • D&D Technologies
  • Lockey
  • Pexco
  • Pul Jak
  • Allied
  • Bekaert
  • Fence-Loc
  • Hampden
  • Klein Tools
  • MALCO
  • Seymour
  • View all Brands
  • Gift Certificates
  • Login or Sign Up
×

    Main Menu

  • Fences
    • Chain Link Fencing
    • Ornamental Aluminum Fences
    • Vinyl Fences
    • Gate Hardware
    • Fence Post Anchors
    • Tension Wire & Utility Wire
    • Barb Wire & Razor Wire
    • Post Caps
    • Fence Accents
    • Fence Brackets & Post Adapters
  • Railing
    • Aluminum Deck Railing
  • Hardware & Tools
    • Bolts & Fasteners
    • Paints & Coatings
    • Cutting Tools
    • Measuring Tools
    • Digging Tools
    • Specialty Fencing Tools
    • Stretching & Pulling Tools
  • Outdoor Living
    • OZ-Deck: Deck Foundation System
    • Arbors & Pergolas
    • Ornamental Wood Ties (OWT) Hardware
  • Get a Quote
  • About Us
  • Contact Us
  • The FenceLine
  • Shop By Category

  • Fences
    • Chain Link Fencing
    • Ornamental Aluminum Fences
    • Vinyl Fences
    • Gate Hardware
    • Fence Post Anchors
    • Tension Wire & Utility Wire
    • Barbed Wire & Razor Wire
    • Post Caps
    • Fence Accents
    • Fence Brackets & Post Adapters
  • Railing
    • Aluminum Deck Railing
  • Hardware & Tools
    • Bolts & Fasteners
    • Paints & Coatings
    • Cutting Tools
    • Digging Tools
    • Measuring Tools
    • Specialty Fencing Tools
    • Stretching & Pulling Tools
  • Outdoor Living
    • Oz-Deck: Deck Foundation System
    • Arbors & Pergolas
    • Ornamental Wood Ties (OWT) Hardware
  • Shop By Brand

  • Bufftech
  • Multiple
  • OZCO Building Products
  • Catalyst
  • Classy Caps
  • Dac Industries
  • Digger Specialties
  • D&D Technologies
  • Lockey
  • Pexco
  • Pul Jak
  • Allied
  • Bekaert
  • Fence-Loc
  • Hampden
  • Klein Tools
  • MALCO
  • Seymour
  • View all Brands
  • Gift Certificates
  • Login or Sign Up

Shop by Category

  • Fences
    • Chain Link Fencing
    • Ornamental Aluminum Fences
    • Vinyl Fences
    • Gate Hardware
    • Fence Post Anchors
    • Tension Wire & Utility Wire
    • Barbed Wire & Razor Wire
    • Post Caps
    • Fence Accents
    • Fence Brackets & Post Adapters
  • Railing
    • Aluminum Deck Railing
  • Hardware & Tools
    • Bolts & Fasteners
    • Paints & Coatings
    • Cutting Tools
    • Digging Tools
    • Measuring Tools
    • Specialty Fencing Tools
    • Stretching & Pulling Tools
  • Outdoor Living
    • Oz-Deck: Deck Foundation System
    • Arbors & Pergolas
    • Ornamental Wood Ties (OWT) Hardware
  • Shop by Brand

  • Bufftech
  • Multiple
  • OZCO Building Products
  • Catalyst
  • Classy Caps
  • Dac Industries
  • Digger Specialties
  • D&D Technologies
  • Lockey
  • Pexco
  • View all Brands
    • Home
    • Fences
    • Vinyl Fences
    • Catalyst Vinyl Fences
    • Catalyst Vinyl Privacy Fences
    • Newbury Vertical Slat Vinyl Privacy Fence
    • Catalyst 5" x 5" Gate Post Inserts - Choose Your Length
  • Catalyst 5" x 5" Gate Post Insert
  • Catalyst 5" x 5" Gate Post Insert

    Catalyst 5" x 5" Gate Post Inserts - Choose Your Length

    Catalyst

    MSRP:
    Was:
    Now: $36.99 - $73.19
    (You save )
    (No reviews yet) Write a Review
    SKU:
    CATALYST-5X5-GP-INSERTS
    Availability:
    Typically Ships in 3-4 Weeks. Ships Direct from Manufacturer.

    Adding to cart… category.add_cart_announcement
    • Facebook
    • Email
    • Print
    • Twitter
    • Pinterest
    • Overview
    • Reviews

    Product Description

    Catalyst 5" x 5" Gate Post Inserts — Reinforcement for Vinyl Gate Posts

    • Adds strength & stability — Inserts reinforce 5" x 5" vinyl gate posts to help resist sag and racking under gate loads.
    • Better hardware grip — Creates a solid surface behind the vinyl so hinges and latches can “bite” securely.
    • Sized for common layouts — Available lengths: 58", 82", 94", 100", 106".

    Catalyst 5" x 5" Gate Post Inserts provide the internal reinforcement your vinyl gate posts need to handle everyday use without sagging. By placing a rigid insert inside the 5" x 5" post, you create a firm anchor for hinges, latches, and drop rods while improving the post’s resistance to torsion and pull-out. Choose from multiple lengths to match your post height; as a rule of thumb, select an insert about 2" shorter than the post. For a fully matched entry, pair these inserts with Newbury Standard Privacy Gates in 46" or 58" actual widths.

    Why Choose This

    • Reinforces gate posts where it counts — Helps keep gates aligned and operating smoothly over time.
    • Improves fastener hold — Provides a solid backing for hinge and latch screws/bolts.
    • Multiple length options — Pick the insert that fits your post height for proper coverage.
    • Straightforward install — Slides into the 5" x 5" post before setting final hardware.

    Specifications

    Product Gate Post Insert for 5" x 5" Vinyl Posts
    Intended Use Internal reinforcement for vinyl gate/end posts; improved hardware anchoring and post stiffness
    Post Compatibility 5" x 5" vinyl posts (Catalyst/Newbury systems and other 5" x 5" posts of similar interior dimensions)
    Available Lengths 58", 82", 94", 100", 106"
    Sizing Guideline Select an insert approximately 2" shorter than the vinyl post length
    Installation Position Insert fully seats inside the 5" x 5" gate/end post before hardware installation
    Hardware Compatibility Works with common vinyl gate hinges, latches, and drop rods (select hardware rated for gate size/weight)

    Installation (Quick Steps)

    • Pick the correct length — Choose an insert about 2" shorter than your 5" x 5" gate/end post.
    • Dry fit — Test the insert in the post to confirm clearance and orientation.
    • Set posts — Install gate/end posts plumb in concrete and allow footings to cure per local code.
    • Install insert — Slide the insert into the gate post; align to the hinge/latch side as needed.
    • Mount hardware — Attach hinges, latches, and (if used) drop rods so fasteners engage into the insert for maximum hold.

    Buying Guide

    • Match to post height — Order the insert length that corresponds to your post height (about 2" shorter than the post).
    • Gate width matters — Heavier or wider gates (e.g., 58" leaves or double-drive) benefit most from reinforcement.
    • Plan your hardware — Choose vinyl-compatible hinges/latches rated for your leaf size; reinforcement helps, but hardware capacity still applies.
    • Coordinate with components — Pair with Newbury Standard Privacy Gates and Newbury Standard Posts for a system-consistent install.
    • Double-check clearances — Verify interior post dimensions and any route locations so the insert doesn’t obstruct rail pockets.

    Frequently Asked Questions

    What size insert should I choose for my 5" x 5" vinyl gate post?
    As a general rule, select an insert that is approximately 2" shorter than the post length so it seats fully without interfering with caps or footing depth.
    Do I need a gate post insert for every vinyl gate?
    It is strongly recommended for most vinyl gate openings, especially wider/heavier gates, to reduce sag and improve fastener grip for hinges and latches.
    Will this work with my existing 5" x 5" posts?
    These inserts are designed for 5" x 5" vinyl gate or end posts. If your posts have similar internal dimensions, they should work; always dry-fit to confirm.
    Can I install the insert after the post is set?
    Yes. After the concrete cures, slide the insert into the post before mounting gate hardware so fasteners engage into the insert.
    Does the insert replace proper footings or bracing?
    No. Use the insert in addition to correctly sized footings and good installation practices for long-term gate performance.

    Comparison

    Option Strengths Considerations Best For
    5" x 5" Gate Post Insert (this item) Internal reinforcement; solid backing for hardware; multiple lengths to match posts. Must be sized correctly; does not replace proper footings or rated hardware. Most vinyl gate openings, especially wider or high-use entries.
    5" x 5" Aluminum Gate Post Stiffeners Heavier-duty reinforcement option for demanding gate loads. Higher cost; verify compatibility with specific post profiles. Large or frequently used gates, or windy/exposed sites.
    Newbury Standard 5" x 5" Posts System-matched posts for Newbury Standard panels and gates. Posts alone don’t add internal reinforcement without an insert. Building new Newbury Standard runs where matching posts are needed.

    Not sure which insert length to choose? Tell us your post length, gate width (46" or 58"), and site conditions, and we’ll help finalize the right reinforcement, posts, and hardware for a durable gate installation.

    Product Videos

    Custom Field

    Product Reviews

    Write a Review

    Write a Review

    ×
    Catalyst 5" x 5" Gate Post Insert
    Catalyst
    Catalyst 5" x 5" Gate Post Inserts - Choose Your Length

    Recommended

    • Quick view Details

      Bufftech

      |

      sku: BT-ALUM-GATE-POST-STIFFENERS

      Bufftech Aluminum Gate Post Stiffeners for 4" & 5" Posts - Choose Your Size

      MSRP:
      Was:
      Now: $51.59 - $110.79
      Choose Options
    • Catalyst Aluminum Gate Post Insert Illustration of Catalyst Gate with Gate Post Inserts Stabilizing Posts Catalyst Aluminum Gate Post Insert Illustration of Catalyst Gate with Gate Post Inserts Stabilizing Posts
      Quick view Details

      Catalyst

      |

      sku: CATALYST-5X5-PREMIUM-GATE-POST-STIFFENERS

      Catalyst LX Premium 5" x 5" Aluminum Gate Post Stiffeners

      MSRP:
      Was:
      Now: $86.79 - $105.29
      Choose Options
    • 5" x 5" White PVC Majestic Post Cap from Classy Caps (SLO75W) Classy Caps Majestic Solar Post Cap with Dual Lighting Modes - Bright White & Warm Natural Light 5" x 5" White PVC Majestic Post Cap from Classy Caps (SLO75W) Classy Caps Majestic Solar Post Cap with Dual Lighting Modes - Bright White & Warm Natural Light
      Quick view Details

      Classy Caps

      |

      sku: CC-MAJESTIC-SOLAR

      5" x 5" Majestic Solar Post Cap from Classy Caps - Choose Your Color

      MSRP:
      Now: $34.39
      Choose Options
    • Catalyst TimberGrain Vinyl Blank Post in Arctic Blend Catalyst TimberGrain Vinyl Blank Post in Arctic Blend
      Quick view Details

      Catalyst

      |

      sku: TIMBERGRAIN-LX-BLANK-POSTS

      Catalyst 5" x 5" TimberGrain Premium LX Blank Posts

      MSRP:
      Was:
      Now: $70.49 - $103.59
      Choose Options
    ×
    ×
    Join Our Mailing List for special offers!
    Contact Us
    44 Seneca Ct.
    New Castle, PA 16105
    Accounts & Orders
    • Login or Sign Up
    • Shipping & Returns
    Quick Links
    • Fences
    • Railing
    • Hardware & Tools
    • Outdoor Living
    • Get a Quote
    • About Us
    • Contact Us
    • The FenceLine
    Connect with Us:
    • © Signet Fence & Rail Supplies
    • |
    • Sitemap