A good height for a bench is generally recognized at about 18.
Build planter box bench seat.
Attach 2 2 supports to the planters as shown in the plans.
Diy planter box bench via simplyeasydiy for this garden bench cut the two wooden panels of the door on both sides and attach the planters as per the instructions on the picture.
This allows for a cushion of about 2 thickness for individuals that are of average height.
Cut pieces of 5 4 decking for the sides of the planter.
The bench slats can be laid in place and attached to the planter boxes with 1 1 4 pocket hole screws.
Drill pilot holes through the rim components and insert 2 1 2 screws into the 19 supports.
Select a location for your planter bench.
Use 2 4 lumber to frame the seat for the planter bench.
Assembling the seat frame.
The area should be level with plenty of room for a large bench.
The planters will serve as supports for the garden bench.
Use 2 1 2 screws to secure the supports to the wall planters.
Cut the brace 2 inches shorter than the width of the side and attach it with screws.
To build each side clamp the pieces and attach a 2x6 brace which also acts as a cleat to hold the bottom pieces.
Place the two pre made planter boxes in a desired location 6 feet apart.