How To Finish Shiplap Edges

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This article is about how to finish shiplap edges. Shiplap walls are a beautiful addition to any farmhouse-style home.

It’s also a pretty easy DIY project that most people can do themselves.

You can even attach shiplap directly to the studs if you haven’t drywalled yet. Even though it’s really easy to install a shiplap wall, finishing the edges can be tricky.

When you’re done installing your shiplap boards, you’ll want them to look amazing at all times. However, if you don’t finish the edges of your walls correctly then they will look unfinished and cheap. Not good!

There are a few different ways to finish the edges, in the end, it’s all about your personal preference. This guide shows you how to finish the edges of a shiplap wall so that it looks great for years to come!

how to finish shiplap edges before

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How To Finish Shiplap Edges Using Caulk 

One of the easiest ways to achieve a clean edge is by using caulk.

Caulk will give you a smooth edge and can be painted, so it’s perfect for corners. It will fill in any rough edges and cuts that may not be perfect. 

If you want to get a really clean edge, then the caulk is the way to go. It’s easy and quick so if you’re in a hurry you can do it quickly without having to worry about using any special tools.

Make sure to use a paintable caulk if you are going to be painting the walls.

Caulk is also useful in concealing any blunders you may have made with your shiplap installation.

Caulk can close gaps between your trim and shiplap without revealing any signs of a mistake, whether you cut a board slightly short or not.

Even professionals will apply caulk to ensure that everything is properly sealed for a finished appearance.

caulk edges Shiplap Wall corners

Caulking Shiplap Edges

STEP 1: When you’ve finished installing the shiplap, run a bead of caulk along the seams where the shiplap meets up to a wall, inside corner, or molding.

STEP 2: As soon as you have added the bead of the caulk, use your finger or a wet rag to smooth out the caulk while it is still wet.

STEP 3: Use a clean, lint-free cloth to wipe away any extra caulk. Make sure you do this as soon as possible while the caulk is still wet so that it does not dry unevenly.

STEP 4: Allow the caulk to fully dry before painting it.

caulk gun

Trim Shiplap Edges

Another way to finish shiplap edges is to use a trim. Trim is a great way to cover up any gaps and can be used to create a more polished look on any accent wall.

It’s perfect for adding the finishing touch, so it’s definitely something you should consider using if you want a well-finished look.

You can use trim with or without caulk and both options will give your shiplap wall an amazing finished appearance.

To make it even easier, have Home Depot or your local store cut the trim for you.

quarter round trim edge Shiplap Wall

How To Trim Out Shiplap 

If you want to trim around shiplap, one of the easiest and most common trims to use is quarter round. It will give a professional, polished, and finished look to any shiplap wall.

STEP 1: Measure how long you need your quarter round to be. 

STEP 2: Cut the quarter round to size using a table saw or miter saw.

STEP 3: Use glue to secure the quarter round in place. It’s best to use an adhesive like Liquid Nails for this.

STEP 4: Nail the trim along the bottom of your Shiplap wall, using finishing nails and your nail gun.

STEP 5: Fill the holes with caulk and let them dry before painting over them. 

Other Trim For Shiplap Walls

You can also use other types of trim to finish your shiplap walls, like crown molding for example. It will give your wall a classy look that is perfect for any room.

You can also use a flat trim for a more modern feel.

This look is great especially if you are adding shiplap to your fireplace. It helps to pull everything together and give it that finished look.

modern trim edge on Shiplap Wall

Outside Corner Edges

If the edge of your shiplap butts up to a corner that turns into another room, your best option is to use corner trim.

It’s a great way to finish the edge and conceal any gaps.

Make sure to measure the angle since not all corners are exactly at a 90-degree angle. 

corner trim on white Shiplap Wall


In this article, we have explored a few ways how to finish shiplap edges- caulking, trimming, and outside corner edges.

Regardless of which method you go with, finishing the edges of your shiplap wall can make a world of difference in terms of appearance.

It adds a professional touch and creates a finish that is well worth the effort you put into it.

So whether you are using faux shiplap or the real stuff, don’t forget this finishing touch.

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