3×3 in. x 8 ft. HD Square Post (.090 Thk) – Custom Color + Cap

$17.82 – $175.50

Aluglobus Heavy-Duty Aluminum Post

3″ × 3″ heavy-duty square aluminum post with an 8 ft length and .090″ wall
thickness. Manufactured from 6063-T6 aluminum for strong, corrosion-resistant
exterior support, with a custom architectural finish and matching cap for a
clean, coordinated installation.

Post Size
3″ × 3″

Length
8 ft

Wall Thickness
.090″

Finish
Custom Color

Material
6063-T6 Aluminum

Classification
Heavy-Duty Square Post

Included
8 ft Post + 3″ Matching Cap

Profile
Square Architectural Aluminum

Corrosion Resistance
Rust-Resistant Aluminum Construction

Application
Heavy-Duty Fence, Gate & Support Applications

Heavy-duty profile:
the .090″ wall provides increased rigidity for applications requiring
a stronger post. Confirm post depth, mounting method, loads, and
project-specific structural requirements before installation.

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SKU: 26571-1 Categories: Aluminum Fences - DIY Fence Kit Post, Posts Tags: price2024, shop

Description

Product Description

3″ Square Post · 8 ft · HD .090 · Custom Color + Cap

A compact 8 ft heavy-duty post and matching flat press cap, both finished for the project.

The 3×3 in. x 8 ft. HD Square Post (.090 Thk) – Custom Color + Cap groups a true 3-inch square, 8-foot Heavy Duty aluminum post with a matching 3-inch flat press cap in custom color. The grouped SKU explicitly identifies a .090-inch wall and 6063-T6 aluminum, giving contractors a verified structural profile and coordinated top finish in one selectable configuration.

Choose post & cap options ↑ View specifications ↓

8 ft supplied length

6063-T6 · 3″ square · 8 ft · .090 HD · Custom Color + Cap

Profile3″ × 3″

Length8 ft

Wall.090″

ClassHeavy Duty

Grouped cap3″ Flat Press Cap · Custom Color

The .090 wall is the defining specification

The .090 HD wall is the structural step. The 8 ft length is the efficiency step.

This grouped SKU publishes a 3″ × 3″ × 8 ft post with a .090 Heavy Duty wall and 6063-T6 architectural aluminum. The wall class remains the structural decision, while the grouped custom-color cap completes the exposed top without changing post capacity.

3″ × 3″ footprintA substantial square post size that works visually with larger fence panels, privacy systems and gate openings.

.090″ HD wallMore wall material than the .080 Light Duty family, giving the post a higher structural class for compatible applications.

.090 Heavy Duty wallThe .090 wall is part of the product specification and should be used when comparing this post with lighter .080 Light Duty profiles.

.090″ wall
HD class

Conceptual cross-section · not to scale

Custom finish planning

The structural post and cap can follow one coordinated architectural finish.

Aluglobus’ aluminum fence program offers custom powder coating in any RAL color, with matte, satin, textured and gloss options. Coordinate the 3-inch HD post and flat press cap with horizontal slats, privacy panels, composite systems, gates, wall toppers and adjacent architectural finishes.

White & light neutralsWork well with bright stucco, coastal properties, light masonry and minimalist fence designs.

Grey & anthracitePair naturally with modern windows, garage doors, roofing and contemporary horizontal slat systems.

Bronze & earth tonesCoordinate with stone, brick, warm façades, wood-look aluminum and landscape materials.

Texture & glossMatte, satin, textured and gloss finishes change how the post reads in direct sun and across longer fence runs.

Pure White direction

Light Grey direction

Anthracite direction

Terra Brown direction

Architectural Bronze direction

Metallic / specialty direction

Screen colors are design references only. Confirm the physical powder code, gloss, texture and required coating specification before production.

Why choose the 8 ft HD version

Use the shorter stock when the project needs HD support, not extra length.

The 8-foot post keeps the same published .090 Heavy Duty wall and 6063-T6 alloy as the exact 12 ft black sibling, but with less material to transport, stage and cut when the approved height and mounting fit within 8 feet.

Less excess stock

When 8 feet is enough, there is less unused material to buy and cut away compared with a 12 ft extrusion.

Easier handling

Shorter posts are simpler to transport and maneuver on many residential and light-commercial sites.

Same published HD identity

The exact 8 ft and 12 ft black siblings both publish a .090 wall and 6063-T6 aluminum.

Clear longer-stock option

Move to the 12 ft .090 HD sibling when deeper approved support, taller finished height or larger grade changes require more stock.

Important: 8 ft is supplied stock length, not a universal finished fence height or footing depth. Confirm the approved mounting and final elevation before ordering or cutting.

Grouped post + cap configuration

Select the 8 ft HD post and matching 3-inch flat press cap from the same product.

The grouped SKU contains two independently selectable quantities: the 3″ × 3″ × 8 ft HD Square Post (.090 Thk) – Custom Color and the 3″ Flat Press Cap – Custom Color.

Grouped structural profile

3″ × 3″ × 8 ft · .090 HD · 6063-T6 · Custom Color

Heavy-duty square aluminum support profile with verified .090-inch wall, 6063-T6 alloy and project-specific custom powder-coated finish.

Grouped finishing component

3″ Flat Press Cap · Custom Color

Matching low-profile cap for the 3-inch square post family, selected separately inside the grouped product so cap quantity follows the number of exposed post tops.

Quantity planning: post and cap quantities are independent. Count structural post locations first, then add flat press caps only for the exposed 3-inch post tops that require them.

Choose grouped options ↑

Technical specifications

Use the exact SKU values, then keep engineering values project-specific.

The grouped product confirms a 3″ × 3″ profile, 8 ft supplied length, .090 Heavy Duty wall, 6063-T6 architectural aluminum, custom color, and a grouped 3″ Flat Press Cap – Custom Color.

Specification boundary: the .090 wall, 6063-T6 alloy and 8 ft length are product specifications. Allowable load, engineered wind rating, universal spacing and one fixed footing size are not specified here and remain project-specific.

Product: 3×3 in. x 8 ft. HD Square Post (.090 Thk) – Custom Color + Cap
Cross section: 3″ × 3″ square
Supplied length: 8 ft
Wall thickness: .090″
Class: Heavy Duty
Material: 6063-T6 aluminum square post
Finish: Custom powder-coated finish
Grouped cap: 3″ Flat Press Cap – Custom Color
Fence use: Compatible aluminum fence and privacy systems requiring a 3″ HD support
Gate use: Compatible gate-support conditions after hinge loads and foundation are verified
Grouped configuration: Post and cap use separate quantity selectors within the same grouped product
Engineering: Confirm wind, load, spacing and footing requirements for the specific project

Why .090 matters

This is the HD step above the .080 Light Duty family.

The specification is simple: 3″ × 3″ outside size, 8 ft stock, .090 Heavy Duty wall, 6063-T6 aluminum and custom powder-coated finish. Use the actual support requirements to decide between .080 LD and .090 HD.

Decision	3.15″ .080 LD family	3″ × 3″ × 8 ft .090 HD Custom Color	What to verify
Wall class	.080″ Light Duty	.090″ Heavy Duty	Which class does the actual fence or gate require?
Outside profile	3.15″ square	3″ square	Outside size alone does not determine structural capacity
Alloy	Depends on exact SKU	6063-T6 published on this product	Use the exact product specification rather than a sibling assumption
Finish	Black or custom depending on SKU	Custom powder coat	Approve powder code, gloss and texture before production
Use	LD fence and compatible gate conditions	HD fence, privacy, perimeter and compatible gate support	Wind area, spacing, hinge load and foundation

Applications

One HD post profile can serve several fence and compatible gate conditions.

The post is positioned for residential, commercial and luxury fencing, including privacy fences, pool enclosures, perimeter security, wall toppers, horizontal slat systems, composite fencing and compatible gate support.

Residential

Privacy & side-yard fencing

Use where a 3-inch .090 HD support is appropriate for the panel area, spacing and site exposure.

Pool

Pool-area enclosures

Pool enclosures are a compatible application when the complete barrier, post spacing and mounting meet applicable local pool-safety requirements.

Perimeter

Commercial & security boundaries

Suitable as a structural direction for property dividers, parking areas and perimeter fencing after the project loads are verified.

Horizontal

Slat & composite systems

The product is marketed for pre-fabricated panels, horizontal slats, composite fencing and custom-built designs.

Wall topper

Extensions on walls & bases

Wall toppers and extensions on retaining walls or concrete bases can use this post when the mounting detail is approved for the project.

Gate support

Compatible gate structures

Front gates, driveway gates and custom gate systems can use the post when hinge loads, automation, wind area and foundation are verified for the project.

System context

The 8 ft custom-color HD post should be specified as part of the complete fence or gate system.

These Aluglobus system images illustrate how posts, panels, gates and architectural finishes work together. They provide application context rather than claiming every pictured project uses this exact custom-color SKU.

Aluglobus aluminum gate and fence system with structural support posts — Heavy-duty support should be selected from the complete gate or fence load path

Aluglobus aluminum fence installation and post alignment detail — Long posts make accurate alignment and footing layout more important

Aluglobus powder coated aluminum finish detail — Factory-finished aluminum keeps the long support profile visually consistent

Profile size, wall thickness, cap and mounting belong in one specification

AAMA 2604 custom powder-coat context

AAMA 2604-rated powder-coat materials support the custom finish.

The exterior uses AAMA 2604-rated powder-coat materials with custom-color capability. Coordinate the post and grouped flat press cap to the same approved powder code, gloss and texture. Aluglobus also offers RAL color matching, matte, satin, textured and gloss options with 7-stage preparation across its architectural fence finish program.

6063-T6 substrateThe product page publishes 6063-T6 architectural-grade aluminum for this 8 ft HD custom-color post.

AAMA 2604-rated materialsThe live description explicitly states AAMA 2604-rated powder-coat materials for fade resistance and color longevity.

Any RAL colorThe broader Aluglobus fence program offers custom RAL colors with matte, satin, textured and gloss finish directions.

7-stage preparationAluglobus describes its current architectural fence coating program as 7-stage prep followed by architectural powder coat.

White / light architectural

Grey / anthracite

Bronze / earth tone

Metallic / specialty

Installation planning

Eight-foot posts need the finished height and mounting solved before installation.

The existing product instructions allow both in-ground concrete installation and surface mounting with heavy-duty base plates. Preserve that flexibility, but size the footing or base from the real fence height, panel area, wind exposure, soil, gate loads and local requirements rather than one generic depth.

Before installation: verify that .090 HD is appropriate, then confirm post spacing, finished height, soil, wind exposure, gate loads, footing or base design and local requirements.

Confirm the .090 HD specification

Confirm that the .090 Heavy Duty profile is appropriate for the actual fence or gate loads before installation.

Map every support role

Separate line posts, corners, ends and hinge posts because one wall class may not be correct everywhere.

Confirm the 8 ft stock length

Use a laser, level or string line to confirm the above-grade height and available material for the approved in-ground or surface-mounted condition before cutting.

Design the structural mounting

Size concrete footings, bases or other supports from the real loads, soil and site conditions.

Set posts plumb in both directions

Long posts amplify small base errors, so verify vertical alignment before concrete or structural fasteners are finalized.

Sight the full run

Check the complete post line before installing fence panels or gate hardware.

Cut only after elevations are confirmed

Use suitable non-ferrous cutting equipment, protect the finish and deburr the final cut.

Install the grouped flat press cap

After final cuts and alignment, clean the post top and install the matching 3-inch custom-color flat press cap on exposed posts.

Gate-support decision

HD does not mean every gate load is automatically covered.

Aluglobus’ current heavy-duty gate packages offer 3-inch black posts and matching 3-inch aluminum caps as optional gate-support components. For a gate, the correct post still depends on leaf width, weight, wind area, hinge geometry, automation and foundation design.

Fence load and hinge load are differentA stationary fence panel does not apply the same leverage and dynamic forces as a swinging or automated gate leaf.

.090 HD is verified on this exact SKUThe 8 ft product publishes .090 wall and 6063-T6. Use those values as the product basis, then verify the actual hinge loads and foundation.

Use the 12 ft sibling when length is the issueIf the support class is correct but the project needs more stock for approved embedment or finished height, move to the 12 ft .090 HD sibling rather than changing wall class unnecessarily.

Maintenance & field modification

The original page emphasizes low maintenance and field trimming, so both stay in the redesigned version.

Aluminum avoids iron-oxide rust, and the powder-coated finish eliminates the wood-style repainting or sealing cycle. The 8 ft post can also be trimmed shorter with proper metal-cutting equipment when the final layout requires it.

Rinse salt & dirt

Clean occasionally with water and a mild cleaner, especially in coastal or dusty environments.

No repainting cycle

The powder-coated surface is intended to avoid routine repainting or sealing as part of normal maintenance.

Trim when required

Use a suitable non-ferrous metal blade, protect the finished surface and deburr the cut edge.

Inspect the complete system

For gates, wall toppers and taller fences, periodically check alignment, fasteners, hinges, bases and foundations.

Frequently asked questions

Know exactly what the 3″ × 3″ × 8 ft .090 HD Custom Color + Cap grouped product contains.

This grouped SKU combines verified .090 wall, 6063-T6 aluminum, custom color and a matching flat press cap with independent quantity control.

What are the exact post dimensions?

The grouped product contains a true 3-inch by 3-inch square post supplied in an 8-foot length.

What is the wall thickness?

The exact grouped SKU publishes a .090-inch wall and identifies the post as Heavy Duty.

What aluminum alloy is used?

The grouped product explicitly publishes 6063-T6.

What cap is included in the grouped product?

The grouped selector contains a 3-inch Flat Press Cap in Custom Color as a separate selectable quantity alongside the post.

Are the post and cap quantities linked?

No. They are separate quantity selectors within the grouped product. Order posts from the structural layout and caps from the number of exposed post tops.

Can I choose a custom RAL color?

Aluglobus offers custom powder coating in RAL colors across its aluminum fence program, with matte, satin, textured and gloss finish options. Confirm the exact powder code before production.

Can it be used with composite or horizontal slat fencing?

Yes. The post is compatible with aluminum panels, composite fencing, horizontal slats and custom-built systems when the support geometry and loads match the design.

Can this post support a gate?

It can support compatible gate conditions after leaf width, weight, wind area, hinge geometry, automation and foundation are verified.

Can the 8-foot post be trimmed shorter?

Yes. Use suitable non-ferrous metal-cutting equipment, protect the powder-coated finish and deburr the final cut.

What maintenance is required?

Routine care is mainly occasional rinsing or mild cleaning to remove dirt and salt residue. The powder-coated aluminum does not require repainting, sealing or staining as part of normal maintenance.

Factory-direct heavy-duty aluminum posts

Specify the .090 HD post, cap quantity and custom finish before the 8 ft material goes into production.

Select the 3″ × 3″ × 8 ft .090 HD 6063-T6 custom-color post and matching 3-inch flat press cap from the grouped options, or send Aluglobus the layout when you need help confirming post quantity, cap quantity, mounting or finish coordination.

Choose product options ↑Request project support

Aluglobus Aluminum Systems · Grouped 8 ft HD custom-color post + cap · Fence systems · Gate systems · Nationwide supply

Trusted by investors, architects, homeowners and contractors

Watch Plug ✔

@watchplug

"I couldn't be happier with the fence. From the moment it went up, it completely transformed my backyard. The sleek design without visible posts gives it such a modern, high-end look. It's like having a piece of art around my home. I also love that it's fire-resistant, which gives me peace of mind living in this area. Definitely worth every penny!"

Mike

Home Owner

Daymond John

CEO, Entrepreneur & Investor

DW Design & Build ✔

@dannywangdesign

"We're honored to be recommended by Danny Wang Design, a premier contractor known for exceptional outdoor living spaces. In our latest collaboration, Danny created a stunning backyard and entrusted us with the gate and fence system. We're proud to be his trusted partner for quality and reliability."

Jim Monahan

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"AluGlobus was extremely helpful with my order, answering all my questions and delivering everything to Texas in perfect condition. The products were well-packed in a solid wood crate, and excellent quality. I'm so glad I found them online. Highly recommended. I'll be buying from them again. Thanks to everyone who made it happen!"

David

Customer

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Mercedes Benz Engineer

Valley One Gates & Access

"We use Aluglobus 100% with every fence/gate job we have. As a contractor I can say they are working very hard and their product is the highest quality I can find and the best price. We're very happy working with them! Our experience working with them is always top notch."

22 July 2025

	3x3 in. x 8 ft. HD Square Post (.090 Thk) - Custom Color$175.50	3x3 in. x 8 ft. HD Square Post (.090 Thk) - Custom Color quantity
	3" Flat Press Cap - Custom Color$17.82	3" Flat Press Cap - Custom Color quantity

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