Make Your Own Inexpensive Trellis Bench Make Your Own Inexpensive Trellis Bench
Tools and Materials Needed:
- Four 10 foot 4 by 4 posts
- Two 8 foot 2 by 6 beams
- One 12 foot 2 by 6 for 3 cross braces
- One 8 foot 2 by 6 for 2 seat supports and 3 back supports
- Two 8 foot 2 by 4s for 4 bench legs, back rail and lattice support
- One 12 foot 2 by 8 for 3 seat planks
- One 8 foot 1 by 4 for 2 backrests
- One 4 foot 1 by 6 for 2 armrests
- Twelve 6 foot 2 by 2s for 4 verticals and 8 slats
- One 4 by 4 foot lattice sheet, cut to 3 by 4 foot
- 4 decorative corner braces
- 1/4 inch galvanized carriage bolts with nuts and washers: 4 at 3 1/2 inches, 8 at 5 inches, 4 at 6 inches
- Twelve 1/4 by 4 inches galvanized lag screws with washers
- 1 1/4 and 3 inch decking or stainless-steel screws
- Exterior stain and sealer or primer and paint
Step 1 - Notch the Beams
In the top of the post, cut 5.5 inches by 1.5 inch deep notches into the top of the posts. Lay out the posts and form a triangle that measures 4 by 5 feet. Adjust the posts so the notches are level with one another. Brace or lightly tap the posts into the soil temporarily. To make a decorative profile, cut the ends of the 2 by 6 beams Place the beams into the notches and secure them from the sides with 2, 5 inch carriage bolts at each intersection.
Step 2 - Add Cross Braces
Cut the cross braces to length and attach them to the posts by drilling holes and driving the lag screws. Two of the cross braces attach to the top of the posts. The longer one (third one) goes on the end opposite of the bench. It should be positioned twelve inches above the ground.
Step 3 - Install the Seat Supports
Cut the back and seat supports to length. Position each seat support beside a post with the top of the support being 16.5 inches above ground. Drill a 1/2 inch hole into the support beam and post and secure it with a 6 inch carriage bolt. Make sure the seat is level and secure it with an additional carriage bolt for support.
Step 4 - Install the Legs
With 3.5 inch carriage bolts, bolt the front legs to the outside of the seat support. Attach the back legs on with 3 inch screws.
Step 5 - Add the Seat
Cut the 2 by 8 into 3, 41 inch planks to make the seat. Make sure it is flush with the back of the seat. Attach the planks with 3 inch screws.
Step 6 - Back Supports
Cut the 18 inch long back supports so they taper from 5.5 inch at the bottom to 2 inches at the top. Align with the back of the seat and attach the supports to the post. Pilot holes then drive 3 inch screws in.
Step 7 - Install the Back Rest
Cut the backrest to length. With 3 inch screws, attach the backrest to the top of the back support. It will stick out some. Attach the second backrest between the first back support and the seat.
Step 8 - Install the Armrests
Cut the armrests to length. With 3 inch screws, attach the top of the arm rest to the top of the legs.
Step 9 - Install the Lattice and Final Pieces
Cut the lattice so it fits snugly and behind the bench. Attach by angling 3 inch pilot holes with screws. Cut the lattice panel to fit and attach with 1 1/4 inch screws to support and poles. Trim the ends with a circular saw in decorative fashion. Finish the arbor with stain or paint it.