3.15×3.15 in. x 11 ft. LD Square Post (.080 Thk) – Black + Cap

$14.36 – $128.80

Aluglobus Light-Duty Aluminum Post

3.15″ × 3.15″ square aluminum post with an 11 ft length and .080 wall
thickness. Designed for standard fence sections and other applications
that do not require a heavier structural post, with a clean black finish
and matching flat press cap.

Post Size
3.15″ × 3.15″

Length
11 ft

Wall Thickness
.080

Color
Black

Material
6063-T6 Aluminum

Classification
Light-Duty Square Post

Included
11 ft Post + 3.15″ Flat Press Cap

Primary Use
Standard Aluminum Fence Sections

Corrosion Resistance
Rust-Resistant Aluminum Construction

Profile
Square Architectural Aluminum

Light-duty profile:
intended for applications where a .080 wall post provides appropriate
support. Confirm post depth, loads, mounting method, 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

3.15″ Square Post · 11 ft · LD .080 · Black

A larger square post with long-stock flexibility, without pretending .080 is the HD class.

The 3.15×3.15 in. x 11 ft. LD Square Post (.080 Thk) – Black + Cap is a long-format aluminum support profile with a published .080-inch wall. Aluglobus labels it Light Duty and lists it separately from the 3-inch .125-wall HD post family, giving contractors a larger visible post footprint when the actual loads do not require the heavier wall class.

Choose post & cap options ↑ View specifications ↓

11 ft supplied length

3.15″ square · .080 wall · Light Duty

Profile3.15″ × 3.15″

Length11 ft

Wall.080″

ClassLight Duty

Cap3.15″ Flat Press Cap

What “LD .080” actually means

Outside size creates presence. Wall thickness defines the structural class.

A 3.15-inch square post looks substantial, but Aluglobus intentionally identifies this version as Light Duty because the aluminum wall is .080 inch. In the same gate-post selector, Aluglobus offers separate 3-inch .125-wall HD posts for heavier structural conditions.

3.15″ × 3.15″ footprintBroader than the compact 2×2 family, giving larger fence panels and gate openings a more substantial visual support.

.080″ wallThe published wall thickness makes the post class transparent and easier to compare against heavier options.

LD versus HDUse Light Duty where .080 is appropriate. Move to the separate .125-wall HD family when engineering, wind area or hinge loads require more wall material.

.080″ wall
Light Duty class

Conceptual cross-section · not to scale

Why 11 feet matters

Long stock gives the installer more room for height, grade and approved embedment.

Eleven feet is useful when final post cuts vary, the fence runs across changing grade, or the approved installation requires more material below the finished surface. It should be treated as available stock length, not as a universal finished fence height.

Embedment flexibility

More stock is available for below-grade support when the actual footing design requires it.

Taller conditions

Longer extrusion gives more flexibility for taller approved fence layouts without starting from an undersized post.

Grade transitions

Sloped and stepped projects often require different final cuts from one post location to the next.

Field-cut versatility

The post can be trimmed after elevations are confirmed, provided the .080 LD class is appropriate for the intended support role.

Important: the 11 ft length does not determine footing depth. Embedment depends on height, panel area, wind exposure, soil, spacing, gate loads and local structural requirements.

Post + cap

Finish the 3.15-inch square post with the matching flat press cap.

Aluglobus lists the 11 ft black LD post and the 3.15″ Flat Press Cap in the same gate post-and-cap selector.

Structural profile

3.15″ × 3.15″ × 11 ft · .080 LD

Large-format square aluminum support profile with published .080-inch wall and black finish.

Finishing accessory

3.15″ Flat Press Cap

Low-profile top finish sized for the 3.15-inch post family, keeping the finished support clean and geometric.

Order from the actual layout: choose the number of posts required by the fence or compatible gate design, then add caps for the exposed 3.15-inch post tops.

Choose product options ↑

Technical specifications

The product publishes size, length and wall class. Project loads still need project answers.

Aluglobus publicly lists this option as a 3.15×3.15-inch Light Duty square post, 11 feet long, with .080 thickness and a black finish.

Specification boundary: the public selector does not publish the alloy, allowable load, universal wind rating, fixed post spacing or one footing size for this exact individual post.

Product: 3.15×3.15 in. x 11 ft. LD Square Post (.080 Thk) – Black + Cap
Cross section: 3.15″ × 3.15″ square
Supplied length: 11 ft
Wall thickness: .080″
Class: Light Duty, as labeled by Aluglobus
Material: Aluminum post profile
Color: Black
Matching cap: 3.15″ Flat Press Cap
Gate context: Listed as an optional post in Aluglobus Universal DIY gate configurations
HD alternative: 3″ .125-wall HD post family available separately
Finished height: Depends on approved mounting, embedment and final cut
Engineering: Confirm loads, wind, spacing and footing for the specific project

LD versus HD

The meaningful comparison is .080 wall versus .125 wall, not 3.15 inches versus 3 inches.

Aluglobus puts these post classes side by side in its gate selector. Similar outside dimensions can serve very different structural roles.

Decision	3.15″ × 3.15″ LD	3″ × 3″ HD family	What to verify
Wall	.080″ published	.125″ published on HD family	Which wall class does the design require?
Outside footprint	3.15″ square	3″ square	Is the choice visual, structural, or both?
Long stock	11 ft black option	8 ft and 12 ft HD options appear in Aluglobus selector	How much length remains after mounting?
Gate support	Optional gate context, Light Duty class	Stronger direction for higher hinge loads	Leaf width, weight, wind area, automation and foundation
Best fit	Large-profile support where .080 is sufficient	Higher-demand fence and gate conditions	Use actual loads, not appearance alone

Applications

A bigger post can improve proportion without automatically becoming a heavy-duty post.

The 3.15-inch footprint works well where compact 2-inch posts would look undersized beside larger panels, taller fencing or wider architectural bays.

Residential

Larger fence panels

A broader black support can look more proportional beside substantial aluminum fence sections.

Privacy

Architectural screening

The larger footprint suits privacy designs visually, but full-privacy wind area must still be checked against the .080 LD class.

Grade

Stepped & sloped runs

Eleven feet provides more final-cut flexibility where finished elevations change along the fence.

Gate system

Compatible lighter gate use

The post is offered in Aluglobus gate options, but hinge loads must be checked before using the LD profile as a gate support.

Commercial

Light-duty perimeter support

Useful where the larger visible profile is desired and the project does not require the separate .125 HD class.

Design-led

Substantial black verticals

The 3.15-inch square footprint creates a stronger architectural rhythm than compact post families.

Market perspective

Around the 3-inch size, heavier commercial and industrial aluminum posts commonly move to .125 walls.

Ultra Aluminum lists 3″ × 3″ commercial and industrial posts at .125 wall. That reinforces why this Aluglobus 3.15″ × 3.15″ .080 profile is appropriately identified as Light Duty instead of being marketed as HD based on outside size alone.

Market signal	Aluglobus 3.15″ LD	Heavier commercial direction
Outside size	3.15″ square	About 3″ square
Wall	.080″	.125″ commonly appears in heavier 3″ commercial / industrial offerings
Intent	Large footprint, lighter wall class	Higher structural class
Buying rule	Use where .080 meets the actual requirement	Upgrade where wind, privacy area or gate leverage requires more wall

System context

Long square posts should be planned with panel proportion, alignment and finish.

These Aluglobus system images show the larger design context. They illustrate fence and gate applications, not a claim that every pictured project uses this exact post SKU.

Aluglobus aluminum gate and fence system with substantial support posts — Larger post profiles create stronger architectural rhythm around gates and fences

Aluglobus aluminum fence installation detail — Alignment becomes more visible as posts get taller

Aluglobus black powder coated aluminum detail — Factory-finished aluminum supports a consistent exterior

Profile, wall class, cap and mounting belong in one specification

Installation planning

Eleven feet gives flexibility, but it also magnifies layout mistakes.

Before concrete or structural fasteners are finalized, establish the post class, complete layout, finished elevations and approved mounting design.

Before installation: verify that .080 LD is suitable for the panel area or gate loads, then confirm spacing, grade, footing or base design and local requirements.

Confirm LD is the correct class

Review fence height, privacy area, wind exposure and gate loads before selecting .080 over the .125 HD family.

Map every support condition

Separate line, end, corner and gate positions so one post is not automatically used everywhere.

Establish finished elevations

Use a laser, level or string line to determine the final top line and cut length.

Determine the structural mounting

Size footings or bases from actual soil, wind, fence height and load conditions.

Set plumb in both directions

Tall posts make small base errors more obvious, so verify vertical alignment carefully.

Sight the full run

Check the entire line before finalizing concrete or structural fasteners.

Install compatible panels or gate hardware

Use the connection details specified for the selected Aluglobus system and verified post role.

Install the flat press cap

After final cuts and alignment, clean the post top and finish it with the matching 3.15-inch cap.

Frequently asked questions

Know exactly what the 3.15″ × 3.15″ × 11 ft LD post is before ordering it.

The core distinction is simple: larger footprint, long stock, .080 Light Duty wall.

What are the exact dimensions?

Aluglobus lists the post as 3.15 inches by 3.15 inches square and 11 feet long.

What is the wall thickness?

The published wall thickness is .080 inch.

Why is it called Light Duty?

Aluglobus separates this .080-wall post from its 3-inch .125-wall HD post family. The LD designation refers to structural class, not the visual size of the outside profile.

What cap fits it?

Aluglobus lists a 3.15-inch Flat Press Cap in the same post-and-cap selector.

Is the finished fence automatically 11 feet high?

No. Eleven feet is supplied stock length. Final height depends on mounting, embedment and field cut length.

Can this post be used for a gate?

It appears as an optional post in Aluglobus Universal DIY gate configurations, but suitability depends on leaf width, weight, wind area, hinges, automation and foundation.

When should I use the .125-wall HD post instead?

Use the heavier family when fence height, privacy area, wind exposure, spacing, hinge loads or engineering requirements exceed the .080 LD class.

Is .080 wall common around this post size?

Wall classes vary. Heavier commercial and industrial aluminum posts around 3 inches square commonly use .125 walls, which helps explain the Light Duty label on this .080 post.

How deep should it be installed?

There is no universal depth. Footing and embedment depend on height, panel area, wind, soil, spacing, gate loads and local structural requirements.

What is the benefit of the 3.15-inch footprint?

It creates more visual presence than compact 2-inch posts and can look more proportional beside larger or taller fence panels. Structural capacity still depends on the .080 wall and complete installation design.

Factory-direct aluminum post profiles

Choose the structural class before the post becomes part of the architecture.

Select the 3.15″ × 3.15″ × 11 ft .080 LD post and flat press cap from the product options, or send Aluglobus the project layout when you need help deciding between LD and HD support.

Choose product options ↑Request project support

Aluglobus Aluminum Systems · Square aluminum posts · Fence systems · Gate systems · Nationwide supply

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@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!"

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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!"

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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

	3.15" Flat Press Cap - Black$14.36	3.15" Flat Press Cap - Black quantity
	3.15x3.15 in. x 11 ft. LD Square Post (.080 Thk) - Black$128.80	3.15x3.15 in. x 11 ft. LD Square Post (.080 Thk) - Black quantity

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3.15×3.15 in. x 11 ft. LD Square Post (.080 Thk) – Black + Cap