Westbury black 4" x 4" x 37" post kit. This is a product photo for aluminum handrail post.
Black Four by four surface mounted aluminum westbury post kit with railing attached on two sides
WB4744 Post Westbury 4"x4" 47" Tall Stair Post cut shorter to look good with the top rail
Westbury Post for the top of Stairs uses a 37" tall post and set post near edge of step
Westbury Black 47" 4x4 post for bottom of stairs, cut to manageable height
Westbury Four Inch Aluminum Post Kit standard 4"x4"x47" in Black Fine Texture with cap and flair shown and mouting brackets
White 4x4x37 post kit has a post cap and post flair in white fine texture made from all aluminum and stainless steel
White 4x4x47 post kit has a post cap and post flair in white fine texture made from all aluminum and stainless steel

Westbury 4 in. Post Kit (.125" wall)

$199.41
$199.41
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Westbury Logo Aluminum Deck Railing

C10 Tuscany | C80 VertiCable | C30 Riviera

CHR | Magena Star

  • In stock, ready to ship

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4"x4" Post Kits w/ Cap & Flair for residential application, 36 in. handrail with a .125 in. thick aluminum wall. 4 in. Post Kit with welded base including a Cap and Skirt, Shims, in an easy-to-install leveling system. 37 in. level and 47 in. stair 4 in. Post Kit face mounts to the surface. Use 4 in. post kit for all Westbury Aluminum Railing Systems residential rail!

Each 4 in. post kit requires 4 screws for installation. Use wood screws 4" or over for wood surface. Use concrete screws over 3" for concrete surface installation. Taller 47" posts are used for the bottom of any stair railing to accommodate for the riser variation. 47" posts can be cut to an appropriate height or left as is.

4 in. x4 in. x 37 in. Post Kit 73415 | 4 in. x4 in. x 47 in. Post Kit 73416

    Westbury 4" Post Kits easily install to all Westbury collections, from Tuscany C10, to C80 VertiCable, three-rail C30 Riviera, glass infill C70 Veranda, and more!
    Posts and Accessories
    Product photo of Westbury 2" x 2" x 37" Textured Black aluminum handrail post. Two inches by Thirty Seven Inches.

    Westbury 2 in. Residential Post Kit

    From $92.70
    From $92.70
    36" Level Crossover Post in Black Fine Texture rail top meets in flush with post top for over-the-post level handrail

    Westbury 2 in. Crossover Post Kit

    From $111.24
    From $111.24
    Product photo of a 3" x 3" x 47" Westbury Textured Black aluminum handrail post. Three Inches by Forty Seven Inches. Cap and flair included

    Westbury 3 in. Residential Post Kit

    From $132.20
    From $132.20
    Westbury black 4" x 4" x 37" post kit. This is a product photo for aluminum handrail post.

    Westbury 4 in. Post Kit (.125" wall)

    From $199.41
    From $199.41
    Westbury 2.5" X 2.5" Power Post Aluminum Commercial Rated Post

    Westbury 2.5 in. Power Post Kit

    From $196.60
    From $196.60
    C10 Tuscany Textured Black Wall mount Product Photo

    Westbury Rail Mount Bracket Kit

    From $50.79
    From $50.79
    Westbury Bracket Mount Template Tool

    Westbury Bracket Mount Template Tool

    $123.79
    $123.79
    Westbury Touch-Up Spray Paint 4 oz.

    Westbury Touch-Up Spray Paint 4 oz.

    $20.47
    $20.47
    Rail Support Footblock for bottom rail support

    Westbury Adjustable Rail Support

    $9.11
    $9.11
    Westbury Drink Rail Adapter Kit

    Westbury Drink Rail Adapter Kit

    From $77.63
    From $77.63
    Westbury Post Cap for Aluminum Posts

    Westbury Post Cap for Aluminum Posts

    From $4.74
    From $4.74
    Westbury Skirt Flair for Aluminum Posts

    Westbury Skirt Flair for Aluminum Posts

    From $16.75
    From $16.75
    Westbury Rail Kits
    C10 Tuscany Level Railing Kits by Westbury with brackets and foot block included on 7' and 8' Level Rail Kits residential railing 36" deck handrail all aluminum black fine texture posts sold separately

    Westbury Tuscany C10 Level Rail Kit

    From $205.57
    From $205.57 $216.39
    Westbury Tuscany Stair rail kits 6 foot and 8 foot rail kit for stair rake rail in aluminum with fixed pitch brackets

    Westbury Tuscany C10 Stair 36 in. (36") Rail Kit

    From $216.39
    From $216.39
    C80 VertiCable Rail Cable Aluminum Handrail picket cable railing by westbury black rail and rail post balusters

    Westbury VertiCable C80 Level 36 in. Rail Kit

    From $395.62
    From $395.62 $367.40
    Black Fine Texture 36 Inch VertiCable Railing with 36 in C80 Rail kits and posts on beautiful back deck

    Westbury C80 VertiCable Stair 36 in. Rail Kit

    From $485.66
    From $485.66
    Rivera C30 Level Rail Kit Profile View. Riviera C30 is an open top section showing a clean three-rail system

    Westbury Riviera C30 Level 36 in. Rail Kit

    From $352.56
    From $352.56
    Westbury Rivera C30 Stair Rail Kit with Angle Swivel Brackets and post not included

    Westbury Riviera C30 Stair 36 in. Rail Kit

    From $352.56
    From $352.56
    Product photo of Westbury 2" x 2" x 37" Textured Black aluminum handrail post. Two inches by Thirty Seven Inches.

    Westbury 2 in. Residential Post Kit

    From $92.70
    From $92.70
    Product photo of a 3" x 3" x 47" Westbury Textured Black aluminum handrail post. Three Inches by Forty Seven Inches. Cap and flair included

    Westbury 3 in. Residential Post Kit

    From $132.20
    From $132.20
    Westbury black 4" x 4" x 37" post kit. This is a product photo for aluminum handrail post.

    Westbury 4 in. Post Kit (.125" wall)

    From $199.41
    From $199.41
    36" Level Crossover Post in Black Fine Texture rail top meets in flush with post top for over-the-post level handrail

    Westbury 2 in. Crossover Post Kit

    From $111.24
    From $111.24
    Westbury 2.5" X 2.5" Power Post Aluminum Commercial Rated Post

    Westbury 2.5 in. Power Post Kit

    From $196.60
    From $196.60
    Rail Support Footblock for bottom rail support

    Westbury Adjustable Rail Support

    $9.11
    $9.11
    CHR Handrail
    Product photo of Westbury 2" x 2" x 37" Textured Black aluminum handrail post. Two inches by Thirty Seven Inches.

    Westbury 2 in. Residential Post Kit

    From $92.70
    From $92.70
    Westbury 94" Handrail 1-3/8" Round Aluminum

    Westbury 94" Handrail 1-3/8" Round Aluminum

    $82.53
    $82.53
    Westbury Wall Return

    Westbury Wall Return

    $23.04
    $23.04
    Westbury Wall Mount for CHR

    Westbury Wall Mount for CHR

    $23.07
    $23.07
    Continuous Handrail 90-degree connector for use with corner mount and Westbury continuous handrail while still in the packaging.

    Westbury 90-Degree Elbow CHR

    $40.43
    $40.43
    Westbury Adjustable Elbow

    Westbury Adjustable Elbow

    $59.79
    $59.79
    Westbury 4" Internal Connector

    Westbury 4" Internal Connector

    $12.57
    $12.57
    Westbury Wall End Mount

    Westbury Wall End Mount

    $33.24
    $33.24
    Westbury Corner Mount front side while still in the packaging.

    Westbury Inside Corner Mount CHR

    $18.86
    $18.86
    Westbury Collar Ring

    Westbury Collar Ring

    $12.05
    $12.05
    Westbury Internal End Cap

    Westbury Internal End Cap

    $12.57
    $12.57
    Westbury Post Cap for Aluminum Posts

    Westbury Post Cap for Aluminum Posts

    From $4.74
    From $4.74
    Magena Star Lighting
    Westbury Magena Star Low Voltage Transformer Kit

    Magena Star 50 Watt Transformer Kit

    $319.68
    $319.68
    Magena Star 2 inch ornamental lighted post cap for westbury posts

    Magena Star Ornamental Low Voltage Lighted Cap

    From $76.65
    From $76.65
    Magena Star 2"x2" Combo Lighted Cap

    Magena Star Combo Low Voltage Lighted Cap

    From $113.31
    From $113.31
    Magena Star Side Light (post not included)

    Magena Star Side Light Low Voltage

    $17.03
    $17.03
    Magena Star Tear Drop Low Voltage Side Light

    Magena Star Tear Drop Low Voltage Side Light

    $36.75
    $36.75
    Riser Low Voltage Light | Magena Star

    Riser Low Voltage Light | Magena Star

    $12.56
    $12.56
    Wire Harness for Lighting | Magena Star

    Wire Harness for Lighting | Magena Star

    From $8.72
    From $8.72
    Wire Splitter for Lighting | Magena Star

    Wire Splitter for Lighting | Magena Star

    From $5.96
    From $5.96

    Resources

    Westbury Railing Aluminum Brochure 2025
    Tuscany C10 Installation Guide for Railing sections c10 and c101 as well as c20
    Post Installation for Westbury Guided Install guide for aluminum westbury post kits
    westbury drink rail addapter rail attached to top rail of westbury rail kits and attaches to a deck board for drinkrail over the post flat top railing
    Westbury Racking guide for stair angle sections determines what brackets are needed for westbury railing based on the angle of the steps figured by the rise and run of the treads
    Warranty information for westbury digger specialties lifetime limited warranty

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