Trex 4-in x 4-in Classic White Composite Deck Post Cap
Item #213821 |
Model #024292
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The post sleeve cap rests on top of a Trex Post Sleeve (sold separately) to provide a finished, detailed look
This Trex railing component is made of a high-performance composite material that won't warp, rot, split or splinter
Cleans easily with soap and water
Backed by a 25-year Limited Residential Warranty
Decking and Railing Duos offer a simplified approach to deck design
General | |||
|---|---|---|---|
Color/Finish Family | White | Material | Composite |
Finish | Prefinished | Package Quantity | 1 |
Manufacturer Color/Finish | Classic White | Shape | Flat |
Type | Post cap | ||
Dimensions | |||
|---|---|---|---|
Actual Length (Inches) | 4.55 | Common Length (Inches) | 4 |
Actual Thickness (Inches) | 2.35 | Common Width (Inches) | 4 |
Actual Width (Inches) | 4.55 | Fits Common Post Measurement | 4-in x 4-in |
Features | |||
|---|---|---|---|
Hardware Included | No | Pressure Treated | No |
Lowe's Exclusive | No | ||
Warranty | |||
|---|---|---|---|
Warranty | 25-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | |||
Compatibility | |||
|---|---|---|---|
For Use with Decking | Yes | For Use with Deck Stairs | Yes |
For Use with Porches | Yes | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 30103600 | ||
Check out the Best Selling Deck Post Caps on Lowes.com
Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is generally well-received, with many customers praising its appearance, durability, and ease of installation. However, some reported issues with the caps cracking or breaking, especially in harsher climates. While a few felt the product was overpriced, the majority of customers seem satisfied, describing it as a "great finishing touch" and "maintenance-free" solution.
Customer review summary generated by AI, including incentivized reviews.Looks nice
I bought this to replace a cover on a standard 4x4 post. But it's too big. Just sits on top of the post. A strong wind will blow it off.
Very good
I liked the white composite deck post cap for its stylish yet functional design that tops off a post with a refined touch. It protects the post from water infiltration, extending its lifespan. The composite construction resists fading, cracking, and warping, while its clean white finish complements various railing styles, adding charm and durability
Verified Purchaser
Hello, and thank you for sharing your experience with us. At Trex, we strive for 100% customer satisfaction, and we are happy we did just that. We ho...

New Deck Post Cap Replacement
We recently purchased this post cap to replace one with a solar light. The solar light cap was higher and the lawn service people kept knocking it off and breaking it as they climbed the deck stairs. This new deck post cap is lower so it doesn't get hit by their back pack blowers and it matches the solar cap light that we already have. We are happy with this new update to our deck.
Verified Purchaser
Hello, and thank you for your 5 star review. We really appreciate you taking the time to share your experience with us as well. We count ourselves lu...

too loose
I like the color but the fit is not snug. It is too loose on the post. No hardware included--or directions
From 4-in x 4-in Charcoal Black Composite Deck Post Cap Verified Purchaser
Hello, we sincerely apologize for your negative experience. To help ensure a secure fit, we recommend attaching post caps using silicone or PVC adhes...

Pick up
Order was picked in a timely fashion, all was correct. Friendly, courteous professional staff who go out of their way to provide excellent customer service. Well done!
Verified Purchaser
Prepare to cut/secure the caps to the sleeves.
They look okay, but do not fit the posts that come with the stair designed rails. We had to cut slots in the back side of the cap to get them to fit over the angled rail at the bottom of the steps. Additionally, the caps need to be secured in some way because they don't fit the post tight - they fall off when grabbed or blow off in a moderate wind.
Verified Purchaser
Hello. Thank you for reaching out to Trex and bringing your negative experience to our attention. We apologize for the challenges you have faced. We ...

Easy Install
First time purchase that I hope will hold up well over time.
Verified Purchaser
Hello! Thank you for your 5-Star review! We hope you continue to enjoy your material! -Kaylee Trex Customer Care

Nope!
I gave it one star because I couldn't give it none. This isn't composite, it is plastic, and it isn't for a 4 x 4 post because it's inner base is 4.5 x 4.5
From 4-in x 4-in Enhance Saddle Composite Deck Post Cap Verified Purchaser
Hello, We’re so sorry to hear about your experience with our product. We aim to offer 100% customer
satisfaction to all of our customers, and wo...

Ask before you leap
Product was ok. Do not like selfserve checkout. Lady came over and started pushing buttons to move me to another register because the one i was st was card only. Thats what i was using but she never ask questions she assumed because I m older i needed her help. IDID NOT!!
From 4-in x 4-in Enhance Saddle Composite Deck Post Cap Verified Purchaser
Hello, we are extremely sorry to hear about this, and even more sorry to disappoint a customer. If you need assistance, please reach out to our custo...

Looks nice
This is a nice post cap. Cleans easily. The edges stick out a little bit from the post, so make sure the contractor installs the post a little away from the wall, so the the cap fits on straight, unlike the contractor who installed the posts on my front porch. Also put the cap on the post before installing the stair railing, so the railing will sit below the bottom edge of the post cap. My contractor didn't do that and did a hack job by cutting the post cap edge, which still didn't sit on straig...
From 4-in x 4-in Charcoal Black Composite Deck Post Cap Verified PurchaserIncentivized
Hello, and thank you for being a Trex customer. We appreciate you taking the time to leave us a review. We hope you enjoy your new railing for many y...

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Hello, we apologize for any inconvenience you have experienced. If you need assistance, please reach out to our customer care team at 1-800-289-8739....