8 ft Bench Plans

This step by step woodworking project is about 8 ft outdoor bench plans. This is a super simple bench I have designed so you can get the job done in just one weekend, using just 2x4s and screws. This garden bench is extremely sturdy and features a nice appearance so you can use it in any decor. You can adjust the size of the bench to suit your needs. See my other DIY projects HERE.

We recommend you to invest in the best materials you could afford. Therefore, you should buy weather-resistant lumber, such as pine or cedar. Always take accurate measurements before adjusting the size of the components at the proper size. Drill pilot holes trough the components before inserting the wood screws, to prevent the wood from splitting. See all my Premium Plans in the Shop.

Made from this plan

Building an outdoor bench

Materials

A – 2 pieces of 2×4 lumber – 96″ long, 5 pieces – 18″ long FRAME
B – 2 pieces of 2×4 lumber – 23″ long, 2 pieces – 24 3/4″ long, 2 pieces – 14 1/2″ long, 1 piece – 3″ long LEGS
C – 2 pieces of 2×4 lumber – 21 3/4″ long, 2 pieces – 22 1/4″ long ARMRESTS
D – 5 pieces of 2×4 lumber – 24″ long BACKREST
E – 4 pieces of 2×4 lumber – 96″ long SEAT
F – 5 pieces of 2×4 lumber – 93″ long BACKREST

17 pieces of 2×4 lumber – 8′
2 1/2″ pocket screws, 2 1/2″ screws
paint, glue

Tools

Safety gloves, glasses
Miter saw, jigsaw
Chalk line, tape measure, spirit level, carpentry pencil
Drill machinery and drill bits

Time

One Day

Build a 8 ft long bench

Seat frame

Build the frame of the seat from 2×4 lumber. Cut the components at the right dimensions and then lock them together with 2 1/2″ screws. Drill pilot holes to prevent the wood from splitting. Make sure the corners are square.

Building the legs

Build the legs for the garden bench from 2×4 lumber. Cut both ends of the back legs at 75 degrees, using a good miter saw. Smooth the edges with sandpaper.

Assembling the sides

Attach the 2×4 supports to the side legs, as shown in the diagram. Drill pilot holes and insert 2 1/2″ screws to lock everything together tightly.

Assembling the bench frame

The next step of the project is to attach the sides to the seat frame. Measure 11″ from the ground to the seat frame. Drill pilot holes through the legs and insert 2 1/2″ screws into the frame of the long outdoor bench.

Attaching the backrest supports

Build the backrests from 2×4 lumber. Round the exposed corner of the supports and then secure them to the seat frame with 2 1/2″ screws, after drilling pilot holes.

Building the middle leg

Build the middle leg from 2×4 lumber. Add glue to the joints, drill pilot holes and insert 2 1/2″ screws to assemble everything tightly.

Attaching the middle leg

Attach the middle leg to the frame of the 8 ft bench. Drill pilot holes through the leg and insert 2 1/2″ screws to lock them together tightly. Use a carpentry square to make sure the corners are right angled.

Fitting the armrests

Build the armrests from 2×4 lumber and round one end with a jigsaw. Smooth the edges, drill pilot holes and insert 2 1/2″ screws to secure the armrests into place tightly.

Fitting the seat slats

Build the seat slats from 2×4 lumber. Fit the slats to the frame and align them flush at both ends. Fit 1/2″ plywood scraps between the slats to create even gaps. Drill pilot holes through the slats and insert 2 1/2″ screws to secure them into place tightly.

Attaching the backrest slats

Attach 2×4 slats to the backrest supports of the bench. Place a piece of 1/2″ plywood between the slats to create even gaps. Drill pilot holes through the slats and secure them to the supports with 2 1/2″ screws.

8 ft bench plans

This is a nice 8 ft long bench. You can adjust the size of the project easily so it suits your needs and tastes. If you like my project, don’t forget to SHARE it on Facebook and Pinterest.

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