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Treated Timber and Outdoor Fence Post Capitals

Treated timber fence post capitals and tops that have been LOSP or H3 treated, making them suitable for outdoor use. They are available in a wide variety of designs including ball, windsor, flat and pyramid post capitals.

H3 treatment provides protection against borers and termites, moisture as well as the weather. It should never be cut or sanded, as the treatment is only applied to the exterior of the timber product. Any newly exposed timber would need to be re-treated using either a paint-on treatment or aerosol. We also recommend that all external capitals be finished with at least two coats of paint to help prevent splitting and cracking.

For more information on h3 treatment and how to care for it, see our article: What Is H3 Treatment & How To Care For H3 Treated Products. Alternatively, see the product description for more specific information on how each capital should be cared for.

Below you can sort the capitals by post size, or use the material filter in the side bar to further narrow down your search.

  • Original price $19.91 - Original price $19.91
    Original price
    $19.91
    $19.91 - $19.91
    Current price $19.91
    Incl. GST
    per Piece

    SKU: AC050R  
    Flat Fence Post Capital for 90sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Planta...

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    Original price $19.91 - Original price $19.91
    Original price
    $19.91
    $19.91 - $19.91
    Current price $19.91
  • Original price $21.56 - Original price $21.56
    Original price
    $21.56
    $21.56 - $21.56
    Current price $21.56
    Incl. GST
    per Piece

    SKU: AC051R  
    Flat Fence Post Capital for 100sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 100 x 100mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $21.56 - Original price $21.56
    Original price
    $21.56
    $21.56 - $21.56
    Current price $21.56
  • Original price $24.97 - Original price $24.97
    Original price
    $24.97
    $24.97 - $24.97
    Current price $24.97
    Incl. GST
    per Piece

    SKU: AC052R  
    Flat Fence Post Capital for 115sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 115 x 115mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $24.97 - Original price $24.97
    Original price
    $24.97
    $24.97 - $24.97
    Current price $24.97
  • Original price $28.60 - Original price $28.60
    Original price
    $28.60
    $28.60 - $28.60
    Current price $28.60
    Incl. GST
    per Piece

    SKU: AC053R  
    Flat Fence Post Capital for 125sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 125 x 125mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $28.60 - Original price $28.60
    Original price
    $28.60
    $28.60 - $28.60
    Current price $28.60
  • Original price $28.82 - Original price $28.82
    Original price
    $28.82
    $28.82 - $28.82
    Current price $28.82
    Incl. GST
    per Piece

    SKU: AC029R  
    Pyramid Fence Post Capitals for 90sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Planta...

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    Original price $28.82 - Original price $28.82
    Original price
    $28.82
    $28.82 - $28.82
    Current price $28.82
  • Original price $33.66 - Original price $33.66
    Original price
    $33.66
    $33.66 - $33.66
    Current price $33.66
    Incl. GST
    per Piece

    SKU: AC031R  
    Pyramid Fence Post Capitals for 100sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 100 x 100mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $33.66 - Original price $33.66
    Original price
    $33.66
    $33.66 - $33.66
    Current price $33.66
  • Original price $38.50 - Original price $38.50
    Original price
    $38.50
    $38.50 - $38.50
    Current price $38.50
    Incl. GST
    per Piece

    SKU: AC032R  
    Pyramid Fence Post Capitals for 115sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 115 x 115mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $38.50 - Original price $38.50
    Original price
    $38.50
    $38.50 - $38.50
    Current price $38.50
  • Original price $43.78 - Original price $43.78
    Original price
    $43.78
    $43.78 - $43.78
    Current price $43.78
    Incl. GST
    per Piece

    SKU: AC033R  
    Pyramid Fence Post Capitals for 125sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 125 x 125mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $43.78 - Original price $43.78
    Original price
    $43.78
    $43.78 - $43.78
    Current price $43.78
  • Original price $55.33 - Original price $55.33
    Original price
    $55.33
    $55.33 - $55.33
    Current price $55.33
    Incl. GST
    per Piece

    SKU: AC038R  
    Pyramid Fence Post Capitals for 135sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 135 x 135mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $55.33 - Original price $55.33
    Original price
    $55.33
    $55.33 - $55.33
    Current price $55.33
  • Original price $63.47 - Original price $63.47
    Original price
    $63.47
    $63.47 - $63.47
    Current price $63.47
    Incl. GST
    per Piece

    SKU: AC042R  
    Pyramid Fence Post Capitals for 140sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 140 x 140mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $63.47 - Original price $63.47
    Original price
    $63.47
    $63.47 - $63.47
    Current price $63.47
  • Original price $72.16 - Original price $72.16
    Original price
    $72.16
    $72.16 - $72.16
    Current price $72.16
    Incl. GST
    per Piece

    SKU: AC043R  
    Pyramid Fence Post Capitals for 150sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 150 x 150mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $72.16 - Original price $72.16
    Original price
    $72.16
    $72.16 - $72.16
    Current price $72.16
  • Original price $107.25 - Original price $107.25
    Original price
    $107.25
    $107.25 - $107.25
    Current price $107.25
    Incl. GST
    per Piece

    SKU: AC039R  
    Pyramid Fence Post Capitals for 200sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 200 x 200mm fence post to dress it up. What is it made out of ? Plan...

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    Original price $107.25 - Original price $107.25
    Original price
    $107.25
    $107.25 - $107.25
    Current price $107.25
  • Original price $24.86 - Original price $24.86
    Original price
    $24.86
    $24.86 - $24.86
    Current price $24.86
    Incl. GST
    per Piece

    SKU: AC055R  
    Pointed Fence Post Capital for 112sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 112 x 112mm fence post to dress it up. What is it made out of? Plantatio...

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    Original price $24.86 - Original price $24.86
    Original price
    $24.86
    $24.86 - $24.86
    Current price $24.86
  • Original price $19.36 - Original price $19.36
    Original price
    $19.36
    $19.36 - $19.36
    Current price $19.36
    Incl. GST
    per Piece

    SKU: AC054R  
    Pointed Fence Post Capital for 90sq Post


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Plantation...

    View full details
    Original price $19.36 - Original price $19.36
    Original price
    $19.36
    $19.36 - $19.36
    Current price $19.36
  • Original price $16.61 - Original price $16.61
    Original price
    $16.61
    $16.61 - $16.61
    Current price $16.61
    Incl. GST
    per Piece

    SKU: AC047XSS  
    90mm Metal Post Cap - Stainless (Satin)


    Material: Stainless Steel

    Where would you normally use metal post caps ? On top of a 90 x 90mm fence or stair post to dress it up. It is suitable for both interior and exter...

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    Original price $16.61 - Original price $16.61
    Original price
    $16.61
    $16.61 - $16.61
    Current price $16.61
  • Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
    Incl. GST
    per Piece

    SKU: AC047XCO  
    90mm Metal Post Cap - Copper


    Material: Copper

    Where would you normally use metal post caps ? On top of a 90 x 90mm fence or stair post to dress it up. It is suitable for both interior and ext...

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    Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
  • Original price $15.51 - Original price $15.51
    Original price
    $15.51
    $15.51 - $15.51
    Current price $15.51
    Incl. GST
    per Piece

    SKU: AC047XMB  
    90mm Metal Post Cap - Black


    Material: Black Powdercoat

    Where would you normally use metal post caps? On top of a 90 x 90mm fence or stair post to dress it up. It is suitable for both interior and exteri...

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    Original price $15.51 - Original price $15.51
    Original price
    $15.51
    $15.51 - $15.51
    Current price $15.51
  • Original price $15.95 - Original price $15.95
    Original price
    $15.95
    $15.95 - $15.95
    Current price $15.95
    Incl. GST
    per Piece

    SKU: AC048XMB  
    100mm Metal Post Cap - Black


    Material: Black Powdercoat

    Where would you normally use metal post caps?On top of a 100 x 100mm fence or stair post to dress it up.It is suitable for both interior and exteri...

    View full details
    Original price $15.95 - Original price $15.95
    Original price
    $15.95
    $15.95 - $15.95
    Current price $15.95
  • Original price $16.39 - Original price $16.39
    Original price
    $16.39
    $16.39 - $16.39
    Current price $16.39
    Incl. GST
    per Piece

    SKU: AC049XMB  
    115mm Metal Post Cap - Black


    Material: Black Powdercoat

    Where would you normally use metal post caps?On top of a 115 x 115mm fence or stair post to dress it up.It is suitable for both interior and exteri...

    View full details
    Original price $16.39 - Original price $16.39
    Original price
    $16.39
    $16.39 - $16.39
    Current price $16.39
  • Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
    Incl. GST
    per Piece

    SKU: AC028R  
    Square Windsor Fence Post Capitals 85sq


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Plantation...

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    Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
  • Original price $11.88 - Original price $11.88
    Original price
    $11.88
    $11.88 - $11.88
    Current price $11.88
    Incl. GST
    per Piece

    SKU: AC013R  
    Windsor Fence Post Capitals 65 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 70 x 70mm fence post to dress it up. What is it made out of ? Plantation...

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    Original price $11.88 - Original price $11.88
    Original price
    $11.88
    $11.88 - $11.88
    Current price $11.88
  • Original price $20.90 - Original price $20.90
    Original price
    $20.90
    $20.90 - $20.90
    Current price $20.90
    Incl. GST
    per Piece

    SKU: AC001R  
    Windsor Fence Post Capitals 93 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Plantation...

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    Original price $20.90 - Original price $20.90
    Original price
    $20.90
    $20.90 - $20.90
    Current price $20.90
  • Original price $20.46 - Original price $20.46
    Original price
    $20.46
    $20.46 - $20.46
    Current price $20.46
    Incl. GST
    per Piece

    SKU: AC035R  
    Oxford Fence Post Capitals 85 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Planta...

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    Original price $20.46 - Original price $20.46
    Original price
    $20.46
    $20.46 - $20.46
    Current price $20.46
  • Original price $20.46 - Original price $20.46
    Original price
    $20.46
    $20.46 - $20.46
    Current price $20.46
    Incl. GST
    per Piece

    SKU: AC034R  
    Saxon Fence Post Capitals 85 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Plantation...

    View full details
    Original price $20.46 - Original price $20.46
    Original price
    $20.46
    $20.46 - $20.46
    Current price $20.46
  • Original price $11.88 - Original price $11.88
    Original price
    $11.88
    $11.88 - $11.88
    Current price $11.88
    Incl. GST
    per Piece

    SKU: AC021R  
    Ball Fence Post Capitals 65 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 70 x 70mm fence post to dress it up. What is it made out of ? Planta...

    View full details
    Original price $11.88 - Original price $11.88
    Original price
    $11.88
    $11.88 - $11.88
    Current price $11.88
  • Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
    Incl. GST
    per Piece

    SKU: AC002R  
    Ball Fence Post Capitals 93 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Planta...

    View full details
    Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
  • Original price $32.78 - Original price $32.78
    Original price
    $32.78
    $32.78 - $32.78
    Current price $32.78
    Incl. GST
    per Piece

    SKU: AC005R  
    Ball Fence Post Capitals 110 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 112 x 112mm fence post to dress it up. What is it made out of ? Plan...

    View full details
    Original price $32.78 - Original price $32.78
    Original price
    $32.78
    $32.78 - $32.78
    Current price $32.78
  • Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
    Incl. GST
    per Piece

    SKU: AC003R  
    Acorn Fence Post Capitals 93 diameter


    Material: Treated Pine

    Where would you normally use treated timber fence post caps ? On top of a 90 x 90mm fence post to dress it up. What is it made out of ? Planta...

    View full details
    Original price $19.58 - Original price $19.58
    Original price
    $19.58
    $19.58 - $19.58
    Current price $19.58
  • Original price $2.09 - Original price $2.09
    Original price
    $2.09
    $2.09 - $2.09
    Current price $2.09
    Incl. GST
    per Piece

    SKU: IF034X  
    Double Ended Screw


    Material: Zinc Plated Steel

    Where would you normally use double ended dowel screw ? To fix a fence post capital (except the pyramid style caps such as AC029R) to the top of a...

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    Original price $2.09 - Original price $2.09
    Original price
    $2.09
    $2.09 - $2.09
    Current price $2.09
  • Original price $38.84
    Original price $38.84 - Original price $38.84
    Original price $38.84
    Current price $19.47
    $19.47 - $19.47
    Current price $19.47
    Incl. GST
    per Piece

    SKU: AC045XMR  
    90mm Glass Post Cap - Merlot Red


    Material: Glass

    Where would you normally use glass post caps ? On top of a 90 x 90mm fence or stair post to dress it up. What is it made out of ? Glass How...

    View full details
    Original price $38.84
    Original price $38.84 - Original price $38.84
    Original price $38.84
    Current price $19.47
    $19.47 - $19.47
    Current price $19.47
    Save 50% Save %
  • Original price $38.84
    Original price $38.84 - Original price $38.84
    Original price $38.84
    Current price $19.47
    $19.47 - $19.47
    Current price $19.47
    Incl. GST
    per Piece

    SKU: AC045XCB  
    90mm Glass Post Cap - Cobalt Blue


    Material: Glass

    Where would you normally use glass post caps? On top of a 90 x 90mm fence or stair post to dress it up. What is it made out of? Glass How would y...

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    Original price $38.84
    Original price $38.84 - Original price $38.84
    Original price $38.84
    Current price $19.47
    $19.47 - $19.47
    Current price $19.47
    Save 50% Save %
  • Original price $53.57 - Original price $53.57
    Original price
    $53.57
    $53.57 - $53.57
    Current price $53.57
    Incl. GST
    per Can

    SKU: IF116X  
    Timber Treatment Wood Preservative - 2 litre Can


    Material: Wood Preservative

    When do I need to use timber treatment (or wood preservative)? To treat above ground timber structures such as the above ground section of fencing,...

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    Original price $53.57 - Original price $53.57
    Original price
    $53.57
    $53.57 - $53.57
    Current price $53.57
  • Original price $33.88 - Original price $33.88
    Original price
    $33.88
    $33.88 - $33.88
    Current price $33.88
    Incl. GST
    per Can

    SKU: IF117X  
    Timber Treatment Wood Preservative - 300 grm Aerosol


    Material: Wood Preservative

    When do I need to use timber treatment (or wood preservative)? It can be used on any of the items in our Treated Timber Products range, where you h...

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    Original price $33.88 - Original price $33.88
    Original price
    $33.88
    $33.88 - $33.88
    Current price $33.88