Gardens all over the world, from the formal to the informal, use garden structures to convey theme and character. Wooden arches impart a rustic, comfortable feel that is inviting and relaxing. A wood arch bends for climbing plants that cover like a glorious coat. Wood arches are decorative and functional as well as inexpensive to construct. Give your garden some personality with a charming wood arch.
- Skill level:
Things you need
- Large piece of cardboard
- Framing square
- 2-by-8 boards
- Mending plates
- Post-hole digger or auger
- 4-by-4 posts, 8 feet long, 4
- Scrap boards
- Sprint level
- 2-by-4 boards
- 1-by-3 boards, 32 inches long, varying number
- Hand tamp
Place a large piece of cardboard on a flat surface. Using a pencil, string and a nail, draw a large arch on the cardboard. The base of the arch needs to be 48 inches wide, so make the section of string from the nail to the pencil 24 inches long.
Use a carpenter's square and a protractor to divide the arch into four equal pieces. Cut the pieces out.
Trace the cardboard pieces on a 2-by-8 board. Trace each piece twice to make two arches. Cut the eight arch pieces out with a jigsaw.
Arrange the eight pieces on the flat working area to create two equally sized arches. Connect the four pieces of each arch using mending plates. Set the arches aside.
Select a level location for the arched arbor. Mark a location for two of the posts 32 inches apart from each other. Mark the location for the second pair of posts 32 inches from each other and 48 inches from the first pair. The post locations should form a rectangle with square corners.
Dig a 2-foot-deep hole at each post location, using a posthole digger or auger. Keep holes evenly spaced as you dig because the outside edges of the posts need to be placed at the 32- and 48-inch spacing.
Shovel a small amount of gravel into the bottom of each hole. This will help with drainage around the base of the posts to reduce rot problems.
Place a 4-by-4 post in each post hole. Use scrap pieces of lumber to brace the boards together to hold them straight. Use a sprint level to check the straightness of the boards. Make adjustments to the bracing boards as needed.
Cut three 2-by-4 boards each measuring 30 1/2 inches. These boards will be supports for the arch portion of the arbor.
Nail one of the 2-by-4s across a pair of the posts. Nail the board in the centre of the top of each post. Repeat with the other pair of posts.
Nail the first arch across the two pairs of posts, attaching it to the ends of the 2-by-4 boards. Repeat on the back of the arbor to install the second arch.
Nail the third 2-by-4 board between the two arches and in the centre of both of them. This will hold the arches in place. Remove all bracing boards that were used to install the posts.
Cut many 1-by-3-inch boards 32 inches long; they will be attached between the posts and arches. Use a scrap piece of 1-by-3 lumber as a spacing board to help keep the boards an equal distance apart. Screw a board across the first pair of posts 6 inches up from the ground. Continue installing the boards until you reach the top of the posts. Repeat with the other pair of posts.
Install 1-by-3s across the two arches in the same manner as the previous step. Use two screws at each meeting space.
Pack the dirt from the post holes back into the holes around the posts. Tamp the ground around the arch to pack it very firmly in place.
Tips and warnings
- Paint or stain the arch to protect it from weather.
- Wear safety protection when operating a power saw.
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