Cedar Post Extension - Should I Seal The Joint Somehow? - Landscaping & Lawn Care - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Landscaping & Lawn Care


Thread Tools Display Modes
Old 09-18-2012, 03:16 PM   #1
Join Date: Sep 2012
Posts: 2
Rewards Points: 10

Cedar post extension - should I seal the joint somehow?

I recently added extensions to the top of the red cedar posts in my fence (we're adding lattice to the top of the fence for additional privacy). I used what I think could be referred to as a "dutchman splice" (see my rough sketch below).

Between the original post and the post extension, there is about a 1/8" gap (I used some cedar shims to get the extension perfectly plumb and in line with the original post). I secured the extension with wood glue and two screws on either side - it's pretty solid now, which I'm happy about.


I'm worried, though, that water will get in the gap, freeze over the winter, expand, and ruin the joint (i.e., send the extension all askew).

Should I bother sealing that gap to prevent water from getting in? If so, what should I use - are there outdoor caulks that work well with red cedar?

Thanks for any advice!


jmrudow is offline   Reply With Quote
Old 09-21-2012, 01:03 PM   #2
Too Short? Cut it Again!
Join Date: Sep 2009
Posts: 9,634
Rewards Points: 2,000

I would leave it alone. If you try to seal it I fear you will create more problems than you may not even need to solve. Trying to caulk or seal it you risk an imperfect union into which water could seep and freeze. Let it contract and expand. You have like materials joined together so this should happen at the same rate.


user1007 is offline   Reply With Quote
Old 09-21-2012, 01:43 PM   #3
Join Date: Sep 2012
Posts: 2
Rewards Points: 10

Thanks for the answer sdsester!

That puts my mind at ease - I'll leave it as-is.
jmrudow is offline   Reply With Quote

caulk , cedar , fence , joint , post

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Round metal lamp post DJM1955 General DIY Discussions 11 08-27-2012 02:32 PM
Broken shower head extension (soldered joint) - please help! Simon96Taco Plumbing 24 07-03-2012 02:05 PM
Beam build, joint not over post WillK Building & Construction 8 01-03-2012 09:31 AM
Compressor terminal post wiring connector came apart - remnant still sticking to post justplumducky HVAC 11 07-06-2011 08:04 PM
replacing cedar fence post Wendy2 Landscaping & Lawn Care 4 02-03-2008 12:10 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1