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How To Install Base Trim

Base trim is installed at the bottom of a deck post or porch post, usually covering the gap between the post and the deck boards. Our base trim is available to match any size or style of our deck post or porch post. You can get our base trim pre-assembled, un-assembled, or even in longer lengths. It can be installed before or after deck post is installed.

To learn how to install base trim, view our installation video below, or keep reading for written instructions.

Determine Sizing

The size of the base trim corresponds with the size of the deck posts. For example, if you have 4×4 deck posts, use 4×4 base trim. Place the two pieces of base trim around the deck post to make sure it fits before attaching it.

How to Install Base Trim

Attach Base Trim

The installation process for base trim is fairly straightforward. To install base trim after the deck post is already in place, order a two-piece base trim, and attach both halves to the post with a heavy-duty construction adhesive and/or nails.

How to Install Base Trim

If you have additional questions on base trim installation or need some clarification, feel free to contact us.


Additional Resources

Deck Products Faq's

Frequently Asked Questions

We offer answers to our most frequently asked questions regarding deck, railing, baluster and spindles.

Baluster Calculator

Easily determine the perfect space between railing spindles and figure out how many you’ll need with our convenient baluster calculator.

Shipping Info

All of our products can be shipped directly to you. Most of our items ship within 3 days. Delivery cost will appear as you add items to your shopping cart.