Ask Mylow

Mylow is an AI virtual assistant.

More Information

Will this fit a 6x6 post?How do I install this?Is it durable for outdoor use?What is the warranty period?Can I use this on porches?

Classy Caps 6-in x 6-in Black Aluminum Deck Post Cap

Name: Classy Caps 6-in x 6-in Black Aluminum Deck Post Cap
Brand: Classy Caps
SKU: 5015567591
Price: 19.99 USD
Availability: InStock
Rating: 4.9 (55 reviews)

Shop Classy Caps

4.9

Pickup

Unavailable

Shipping

Unavailable

Delivery

Tue, Oct 13

500 available

Check Fee in Cart.

Schedule delivery date & time in Checkout

Stepper number input field with increment and decrement buttons

Minimum Qty of 4

Members save more.

Your Lowe’s Deck Designer Tool

View professional 3d deck renderings
Get a materials list
Generate a cost estimate
See building plans

Start Designing Your Deck

Here are some similar items...

Classy Caps6-in x 6-in White Aluminum Deck Post Cap

PERMAKAP6-in x 6-in Black Stainless Steel Pyramid Black Stainless steel Deck Post Cap

Classy Caps4-in x 4-in Aluminum Post Cap Black Aluminum Deck Post Cap

Trex4-in x 4-in Classic White Composite Deck Post Cap

350

RELIABILT4-in x 4-in Classic Black Metal Deck Post Cap

145

Nuvo Iron6-in x 6-in Powder coated finish Painted galvanized steel Deck Post Cap

RELIABILT6-in x 6-in Copper Plastic Deck Post Cap

Nuvo Iron4-in x 6-in Black Aluminum Deck Post Cap

Nuvo Iron5-in x 5-in Black Aluminum Deck Post Cap

Nuvo Iron4-in x 4-in Powder coated finish Painted galvanized steel Deck Post Cap

RELIABILT6-in x 6-in Natural Wood Pine Deck Post Cap

Nuvo Iron6-in x 6-in Plastic satin finish Plastic Deck Post Cap

Deckorators6-in x 6-in Newport Classic Natural Wood Pine Deck Post Cap

146

DeckoratorsSolar White Plastic Deck Post Cap

RELIABILT4-in x 4-in White Vinyl Deck Post Cap

145

Best Price. Guaranteed

Find a lower price on an exact item? We'll match it. Some exclusions apply.

Price Guarantee

FREE Returns

Return it in store or ship it back for free. Eligibility rules apply.

Return Policy

FREE Shipping

Delivery is on us for orders over $45. Some exclusions apply.

Shipping Details

General
Color/Finish Family	Black	Material	Aluminum
Finish	Powder-coated	Package Quantity	1
Manufacturer Color/Finish	Black	Shape	Flat
Type	Post cap

Dimensions
Actual Length (Inches)	7.5	Common Length (Inches)	8
Actual Thickness (Inches)	2.2	Common Width (Inches)	8
Actual Width (Inches)	7.5	Fits Common Post Measurement	6-in x 6-in

Features
Hardware Included	Yes	Pressure Treated	No
Lowe's Exclusive	No

Warranty
Warranty	1-year limited

Certifications
CA Residents: Prop 65 Warning(s)	No

Compatibility
For Use with Decking	Yes	For Use with Deck Stairs	Yes
For Use with Porches	No

Miscellaneous
UNSPSC	30103600

Check out the Best Selling Deck Post Caps on Lowes.com

Review

4.9 out of 5

55 Reviews

2 Star

89% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise the aluminum post caps for exceptional cast aluminum construction, elegant black finish, and effortless installation. Reviewers consistently describe them as beautiful, classy, and transformative for decks and fences, with many noting the substantial weight and premium feel that surpasses expectations. The removable adapter accommodates various post sizes, and the inner plastic sleeve simplifies centering. Most customers highlight the powder coating's durability and the sleek, sophisticated design that complements any home style. A few mention the included screws could be higher quality, but this minor concern barely diminishes overall satisfaction. Most consider these caps an excellent investment.

Customer review summary generated by AI, including incentivized reviews.

55 Customer Reviews

Sort By

Great Product

Would Recommend

Shipped quickly, excellent product and fit well to the posts and look very good.

BillAugust 28, 2026

From Classy Caps

Response from Customer Service

Hello Bill, thank you for submitting this review! We are glad to hear that you are happy with the NSX66B!

Customer ServiceAugust 31, 2026

5 star review written by the person who installed

Would Recommend

These caps are incredible! This order was our first from Classy Caps but it will not by any means be the last. Beautiful finish, consistent appearance, easy to install with the 3 size options offered by the mounting bracket. I look forward to allowing Classy Caps to add the final touch to many of our customers fencing!

August 14, 2026

From Classy Caps

Response from Customer Service

Hello there, thank you for submitting this review! We are glad to hear that you are happy with your Classy Caps product!

Customer ServiceAugust 17, 2026

Cheap, soft screws ruin quality caps

Would Not Recommend

Caps are outstanding quality. Unfortunately they provide cheap, soft metal screws - which easily strip the screw head. I pre drilled each hole, wood is pine, so not hard or dense wood. The caps are outstanding, fit perfectly - but then they cheapen it significantly by supplying cheap, poor quality screws

DisappointedMay 21, 2026

From Classy Caps

I would buy these again!

Would Recommend

This upraded the look of our deck immensely, while also protecting the wooden posts.

April 23, 2026
Verified Purchaser

Was this Review Helpful ?

Page 1 Page 2 Page 3 Page 6

Classy Caps: Featured Videos

COMPARE PRODUCTS

		Name	Current Item Classy Caps6-in x 6-in Black Aluminum Deck Post Cap
		Ratings	55
		Material	Aluminum
		Shape	Flat
		Manufacturer Color/Finish	Black
DeckoratorsSolar White Plastic Deck Post Cap	Classy Caps6-in x 6-in Bronze Aluminum Deck Post Cap	Classy Caps6-in x 6-in White Aluminum Deck Post Cap	Deckorators6-in x 6-in Newport Classic Natural Wood Pine Deck Post Cap	DeckoratorsSolar Black Plastic Deck Post Cap	PERMAKAP6-in x 6-in Black Stainless Steel Pyramid Black Stainless steel Deck Post Cap	Nuvo Iron8-in x 8-in Black Aluminum Deck Post Cap	AZEK6-in x 6-in Reserve Rail White Composite Deck Post Cap	AZEK6-in x 6-in Reserve Rail White Composite Deck Post Cap
1	51	48	146	1	2	3	2	2
Plastic	Aluminum	Aluminum	Wood	Plastic	Stainless steel	Aluminum	Composite	Composite
Flat	Flat	Flat	Flat	Flat	Pyramid	Pyramid	Flat	Flat
White	Bronze	White	Natural	Black	Black	Black	White	White