
Ratings & Reviews for Trex 4-in x 4-in Charcoal Black Composite Deck post base trim
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these post sleeves for dramatically improving deck aesthetics, delivering a crisp, polished, professional finish that seamlessly integrates with composite systems. Most highlight excellent color matching and the straightforward snap-together design that allows easy installation by anyone. However, some report sizing confusion, noting the sleeves fit 4.5-inch posts rather than standard 4-inch posts, causing gaps or mismatches. A few mention the plastic construction feels lightweight but inexpensive, and some note visible seams. Despite these concerns, most customers consider the product worthwhile for its visual transformation and installation simplicity.
Customer review summary generated by AI, including incentivized reviews.Color does not match
Would RecommendThese were easy to install. One problem, these are a lighter brown than my older trex railing. I had to paint them to match
Easy to install
Would RecommendEasy to install
Hello Joe, 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 ourselve...

Base
Ease of use and visual appearance
Hi Mike, we are glad to hear you are satisfied with your product. Thank you for choosing Trex! - Cami, Customer Care Team.
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Works perfect
Would RecommendPost sleeve fits right in. Gives it a nice finished look
Verified Purchaser
Hello, and thank you for choosing Trex! We appreciate your remarkable review. Hearing that you love our products is the best thing we could hope for....

wrong size
Would Not Recommendit is not 4x4
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 would l...

Fits Well
Would RecommendI was worried a bit about the look of the seam because they are 2 pieces. But, they fit together well. I suppose it makes it so they could be used on an existing post.
From 4-in x 4-in Classic White Composite Deck post base trim Verified Purchaser
Hello, we are incredibly grateful that you took the time to share your feedback with Trex. Our company puts customer satisfaction as top priority, an...

Easy to install loks grate
Would RecommendFrom 4-in x 4-in Classic White Composite Deck post base trim Verified Purchaser
Hello Uncle Joe. On behalf of all of us at Trex, we would like to thank you for sharing your positive feedback. We are thrilled that you love our pro...

These are in 2 pieces and plastic
Would Not RecommendI haven't assembled yet BUT... these don't look or feel like composite. They are lightweight plastic and they are in 2 pieces. I've tried to snap them together...that's not going so well.
Verified Purchaser
Hi. Thank you for contacting Trex and sharing your experience with us. We sincerely apologize for the difficulties you’ve encountered thus far. If th...

Not worth the money you pay for it
Would Not RecommendIt’s to big for the post it’s about 3/8” on 2 sides when you put it together.
Hi Jack, so sorry to hear that you are having issues. For further assistance, please contact us at 1-800-289-8739 or at customercare@trex.com. - ...

Should be one piece...
Didn't realize and wish that it was a one piece item. Do not like the snap together sections, and that there is a line down where it connects...
From 4-in x 4-in Classic White Composite Deck post base trim Verified Purchaser
Hello, and thank you for the feedback. The post skirts used to come in one piece, but we found that the two-piece skirts were preferred in case custo...

Post
Would Not RecommendMiss important on package. It started it fits a 4x4 post. It doesn’t it for a 41/2x 41/2 post
Hello, thank you for reaching out. We are sorry to hear of your experience. Our 4x4 post sleeves are designed to hit over a standard 4x4 post with th...

Never received, spoke to Lowes 6 TIMES!
These were not received, yet after reporting they were not received, ON THE DAY they were not received, and 4 more chats and another call to Lowe's, STILL NOT REFUNDED. We will no longer buy online. Nightmare! Chat, USELESS. Calling, just as USELESS.
Hello Deckbuilder, thank you for reaching out. we sincerely apologize for your negative experience. However, we would like to mention that calling yo...

does NOT Fit.. DO NOT Buy
Would Not Recommendthe package says 4x4 post when the opening is actually 4.5 inches. completely irritated.
Hello GB, thank you for your review. We are sorry to hear of your experience. We would like to mention that the overview will list the actual dimensi...

They do not fit around a 4 x 4 post
Would Not RecommendI ordered 4 x 4 and these are too big.
Hi Sandy, Thank you for contacting Trex and sharing your experience with us. We sincerely apologize for the difficulties you’ve encountered. If there...

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 would l...