2x4 Outdoor Sofa

Submitted by Ana White on Sat, 03/16/2019 - 13:11
Difficulty
Beginner
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Build your own outdoor sofa with just 11 2x4s.  Ana White plans include step by step diagrams and shopping and cut list.

We also have a plans to convert this sofa to an outdoor sectional, a matching outdoor coffee table plan, and outdoor wood finishing secrets.

outdoor sofa sectional made from 2x4s with blue cushions
outdoor sofa stained chocolate brown with white cushions and matching coffee table

Build your own outdoor sofa!  You'll just need some 2x4s and screws!  

Turn your outdoor sofa into a sectional with these plans:

We also share our outdoor wood finishing secrets in this post.

Dimensions
dimensions diagram for outdoor sofa
Dimensions shown above. Recommend: Build to suit cushions

Preparation

Shopping List

11 - 2x4x10’ (prefer cedar boards)

150 - 2-1/2” to 3" long, self-tapping exterior decking screws  (#8, #9 or #10 will all work) 

Cut List

RECOMMEND: Build to suit cushions.  

9 - 2x4 @ 72”  (or cushion width x times 3)

13 - 2x4 @ 25-1/2” (or cushion depth plus 1-1/2")

2 - 2x4 @ 28-1/2” (or cushion depth plus 4-1/2")

Tools
Tape Measure
Speed Square
Pencil
Drill
Miter Saw

Instructions

Step 1

Cut the seat framing boards with compound miter saw or similar.

Screw together with self tapping screws.

Step 2

Now for the arms.

Cut the boards.

Attach longer 2x4 to two of the shorter 2x4s with screws.

Step 3

Screw together with screws.

Step 4

Screw together with screws, also attach to board from step 3.

Step 5

Step 6

Attach seat boards to top of seat frame with 2-3/4" screws.

Step 7

Screw back piece at an angle into the arms with 2-3/4" screws.  You can also use pocket holes.

Step 8

Some builders add a middle row to the back/sides to help keep cushions in line.

Comments

amynash

Sat, 01/02/2021 - 18:09

Hi can someone help me understand this plan.

The arm rest is 28 1/2”
And the piece that fits inside is 25 1/2”
How can this be? 4” should be used up since they are 2x4’s, meaning 2” from each end of the 28 1/2” long board.

Am I making sense?
Therefore it should be 24 1/2” board, right?

lvgully2020

Tue, 03/02/2021 - 10:51

Great plan...so easy. I did use pocket holes instead just to give some extra strength. Anyone have trouble finding cedar boards??