Clematis Trellis

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Project by Mathew Nedeljko posted 05-02-2010 04:22 AM 6898 views 5 times favorited 8 comments Add to Favorites Watch

This clematis grows well over 8’ up the chimney in my backyard. Got sick of constantly having to replace the flimsy metal ones that we were using to support it. Built this out of three redwood 2×4’s one that was 42” long became the 8 rails -3/4×3/4…the other two were 36” long, I ripped those down to 3/4 by 1 1/2, they became the stiles.

Now i had all the pieces, but needed to figure out how to lay them out so that I got the right overall width and reasonable spacing for the squares. After messing around with different layouts I came up with this concept, but before I started cutting dadoes I fired up sketchup and created a really rough model so I could make sure I cut the dado’s in the verticals in the right locations. Fortunately that all went according to plan, but gluing up over 40 intersecting lap joints took a while.

Fortunately I have a hammer drill and found the tapcon screws to install it to the wall.

Best part was the wife came home and loved it. She’s happy, everybody’s happy right?

Thanks for looking.

-- Aim high. Ride easy. Trust God. Neale Donald Walsch

8 comments so far

View Viking's profile


880 posts in 3219 days

#1 posted 05-02-2010 05:15 AM


This is a great trellis and the redwood should last a long time. We have a similar situation and some scrap redwood to use.

Thanks for sharing your idea. You might consider making a similar post over on the the “Garden Tenders” site as well.

Good Luck!

-- Rick Gustafson - Lost Creek Ranch - Colorado County, Texas

View Beginningwoodworker's profile


13345 posts in 3697 days

#2 posted 05-02-2010 05:40 AM

Nice trellis.

View MsDebbieP's profile


18615 posts in 4185 days

#3 posted 05-02-2010 11:15 AM

this is wonderful!
and yes, we’d love to see this at GardenTenders – as well as a photo of the clematis in full bloom.

-- ~ Debbie, Canada (

View OutPutter's profile


1199 posts in 4015 days

#4 posted 05-02-2010 02:25 PM

Nicely done. Can you tell me a little more about the method you used to connect it to the wall? Is there something between the wood and the wall? How long were the screws? Where did you get the screws and what kind were they? etc.


-- Jim

View Mathew Nedeljko's profile

Mathew Nedeljko

715 posts in 3854 days

#5 posted 05-02-2010 05:10 PM

Thanks for the suggestions to post this over on Garden Tenders…I had not thought of doing that.

Jim, this is attached directly to the brick wall with special brick/concrete screws available at the borg called Tapcon. The ones I used were 3/16” and 2 3/4 long. Since the verticals were 1 1/2 thick this meant the screws penetrated the wall by 1 1/4” which is more than enough. When using these screws make sure to use the proper 5/32” dia carbide concrete drill for drilling the pilot holes. Slightly too small and you wont get the screw into the hole, too big and it wont hold.

I have a hammer drill that i used to drill the holes…it makes drilling into concrete MUCH easier. You can drill concrete with a normal drill, but make sure it is powered or you have several batteries charged cause it will take a while. The hammer drill works great and is a worthwhile investment or rental if you don’t have one.

I had my son help me hold the trellis up there while i stood on a ladder and drilled the first hole right through the center vertical at the top and drove the the first screw. That was enough to hold it there while I drilled the remaining holes and installed the rest of the screws. I used six in total.

It is mounted very solid, and I don’t anticipate needing to take it down any time soon.

-- Aim high. Ride easy. Trust God. Neale Donald Walsch

View sras's profile


4810 posts in 3153 days

#6 posted 05-03-2010 03:25 AM

Very nice! It will be interesting to see the clematis grow into it.

-- Steve - Impatience is Expensive

View Mathew Nedeljko's profile

Mathew Nedeljko

715 posts in 3854 days

#7 posted 06-27-2010 04:55 AM

Thought you might be interested in seeing how the clematis has grown since I originally posted this a few weeks ago.

-- Aim high. Ride easy. Trust God. Neale Donald Walsch

View davidroberts's profile


1027 posts in 3510 days

#8 posted 07-05-2010 07:27 PM

Sorry I’m late to your project, but just had to say I’m really drawn to the symmetry. A cross between Asian and Frank Lloyd Wright. That is fantastic design which can be used as a trellis, but it’s really more like wall art. I bet the clematis will grow especially well on your trellis.

-- Better woodworking through old hand tools.

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