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How to Build a Redwood Canopy Bench

Building your own patio bench is a better option than buying one because you can customize it to your needs.

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Step 1: Cut the Pieces to Size

You can design the bench around a cushion or have one custom made. Call a local fabric store or design studio and find out if outdoor fabric is available. Cut the pieces according to your specific design.

Step 2: Attach the Front Seat Support

Attach 2" x 6" front seat supports 12 inches up from the ground to the outsides of the front 4" x 4" posts using 3-inch stainless steel screws. Repeat this step for the back seat support to the back 4" x 4" posts.

Step 3: Assemble the Seat Support

Stand up the front posts and the front seat support assembly. Then stand up the back posts and back seat support assembly about three feet apart to create the depth for the bench.

Step 4: Connect the Side Seat Support Pieces

Attach the 2" x 6" x 3' sides of the seat to the outsides of 4x4 posts. The whole assembly should be connected together at this point. Four corner 4" x 4" posts standing upright and connected together by 2" x 6" seat supports 12 inches from the ground.

Step 5: Attach the Seat Slat Supports

Begin attaching the two 2" x 4" seat slat supports to the insides of the front and back seat support pieces. They should be recessed 1-1/2 inches on the inside of the seat supports so that when the seat slats are set in, the seat slates are even with the tops of the seat support pieces. Attach the pieces with several stainless steel screws. These pieces support the cushion. Lay in 2" x 2" seat slats every six inches and screw into seat salt support pieces with 2" stainless steel screws.

Step 6: Attach the Armrests

Attach the 2" x 4" x 3' arms rests to the 4" x 4" posts about 18" above the seat support platform. This can vary depending on the depth of the cushion. Using 3" screws, attach the armrests to the inside of the posts.

Step 7: Secure the Crosspieces

There are two options in securing the top crosspieces to the 4" x 4" posts.

Option 1: Cut the notch in the crosspieces and cut out a mortise or a hole in the posts. Insert the notch into the mortise using glue, screws and a clamp.

Option 2: Attach the cross pieces to the posts with a screw to either the inside or outside of the 4x4 posts.

Step 8: Attach the Finishing Caps

Place the tops on 4" x 4" posts and nail them in place.

Step 9: Apply the Stain

Using a semitransparent penetrating stain, brush a thin layer of stain on bench and let it dry.

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