Input/help needed on current project

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Forum topic by smn20 posted 08-17-2016 03:04 PM 621 views 0 times favorited 7 replies Add to Favorites Watch
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1 post in 789 days

08-17-2016 03:04 PM

Topic tags/keywords: question

Hello. I am looking for some advice on a project I am working on. I am building something similar to what is in the picture below:

and I am interested to know your thoughts and ideas on how I could attach the back part like they did while keeping the all wood look and ensuring that it is structurally sound and strong.

thanks in advance

7 replies so far

View rwe2156's profile


3087 posts in 1622 days

#1 posted 08-17-2016 03:22 PM

I would put the extend the back through a slot in the base about 2” and reinforce with a batten.
Or, build a side like the other end.

Not too impressed with the idea of leaving one side in the wind, so to speak, but it does look like 2” thick material.

Depends on who’s using it I guess.
Not going to be cheap to build—a lot of 8/4 wood there.

-- Everything is a prototype thats why its one of a kind!!

View bondogaposis's profile


4981 posts in 2492 days

#2 posted 08-17-2016 06:15 PM

Mortise and tenon.

-- Bondo Gaposis

View Cooler's profile


299 posts in 985 days

#3 posted 08-17-2016 06:43 PM

Unsupported butcher block seems structurally iffy.

In any case I would use 3/4” or 1” diameter hardwood dowels places on maybe 6” centers. I would drill in to the back as deep as is feasible and drill through the bottom, and trim.

I don’t see how a mortise and tenon would work; a floating tenon would though. I think dowels are easier to do.

Like RWE I would be concerned about the unsupported side of the back.

-- This post is a hand-crafted natural product. Slight variations in spelling and grammar should not be viewed as flaws or defects, but rather as an integral characteristic of the creative process.

View onoitsmatt's profile


395 posts in 1317 days

#4 posted 08-17-2016 07:14 PM

I would build a separate base for the sofa bottom cushion. Then raise the table another 6-8” to be more flush with the cushion and wrap that table around the back for support. Then extend the back slab all the way down to the floor. Put the legs in front of the back slab (rather than on the sides) to take the stress.

-- Matt - Phoenix, AZ

View chiseler's profile


124 posts in 1030 days

#5 posted 08-17-2016 09:54 PM

You would be surprised how rigid that slab would be secured on one end with thru loose tenons in the bottom edge.
But just for S+G’s I’d put some 1/2” threaded rod thru the slab and seat section and cap it off on top.(maybe 3 lengths).
Good luck

-- Scott.Triangle,NY Becareful and don't forget...They cut meat too! Ask me how I know

View a1Jim's profile


117232 posts in 3718 days

#6 posted 08-17-2016 10:00 PM

Through mortise and tenons with wooden wedges through them,this way it would be strong but easy to break down and move.

-- wood crafting & woodworking classes

View Woodknack's profile


12369 posts in 2521 days

#7 posted 08-18-2016 05:27 AM

More pics:

It doesn’t look very comfortable but I like the clean lines.

-- Rick M,

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