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This cedar arbor suppports wisteria and clematis vines, and is over 10 years old




Dramatic entrance
Five tips for building a garden arbor

07/25/18



 By Henry Homeyer

listings@hippopress.com
 
When I was a beginning gardener, I just planted vegetables in one place, flowers in another, and never spent 2 minutes thinking about the overall design. I was growing veggies to eat, flowers to admire or to cut and arrange in bouquets. But reading gardening books and visiting fine gardens made me realize that overall design is important.
One feature of an alluring garden is a dramatic entrance. For the past 20 years or more I’ve had a series of garden arbors that invite visitors to pass through to see what lies on the other side. I’ve made bentwood arbors of saplings and, more recently, simple Japanese-style arbors of cedar or striped maple.
You can build a nice entrance to your garden, or a garden room, for virtually no cost. If you have a supply of 2-inch-diameter hardwood saplings, you can build one for the cost of a few wood screws and a scrap of plywood. But it will only last a couple of years. I built one recently for a wedding using saplings, as it only needed to be perfect for a day. 
Alternatively you can buy cedar posts and build something that will last at least 10 years. I’ve done both, and favor the investment in cedar. The cedar posts I’ve used have been round with and have narrower cylindrical tips on each end designed to fit into vertical posts. I cut off the tips, making them about 8 feet long. Unlike rustic cedar posts used for attaching fencing, these have the bark removed, which is good. Bark promotes rot.
Tip 1: Decide on the size you need, and cut a piece of scrap plywood to that size. The plywood guarantees that the finished product will have the vertical posts arranged in a rectangle or square, and not a diamond or a rhombus. If you are making a permanent structure and it is surrounded by lawn, be sure it is wide enough for your lawnmower to pass through, with a little extra space for plants.
Tip 2: Get a post hole digger. This is a two-handed device that allows you to scoop out soil relatively easily. It makes a 6- or 8-inch-diameter hole, which you can’t do with a shovel. Dig holes a foot deep to give a sturdy feel to your arbor. I put a few small stones (the size of golf balls) in each hole alongside the posts and jam them in with a hand tool.
You can build an arbor with four or six upright posts. For smaller diameter posts (using saplings), I prefer using six. The more substantial cedar posts only need four posts, one on each corner. Something 4 to 5 feet wide and 4 feet from front to back is a nice size.
Tip 3: You are not building a violin. It is easy to get obsessed with making every post absolutely vertical, and every horizontal precisely level. But, especially for arbors made of saplings, each piece is slightly different. Some have little curves, others have lumps and bumps. Work with a helper so one of you can adjust your posts to look good — standing straight up, with roughly level cross pieces. So long as it looks good to your eye, it is fine.
Tip 4: Pre-drill where you want to screw two pieces together. Borrow a second cordless drill, so you have one with a drill bit, one with a driver bit for Phillips screws. Use screws long enough to go through one piece, and at least an inch into the other. Have a variety of lengths available.
Each side needs three horizontal braces that are held in place with screws or lag bolts. Install one a couple of inches below the top, to hold the rafters; one at waist height, say 36 inches off the ground; one 8 to 10 inches off the ground. I usually add a few pieces running vertically from the middle to the lower cross pieces.
If you can’t get smaller-sized cedar posts for the rafters and cross pieces, you can use 2-by-2-inch rough-sawn lumber, either cedar or hemlock. Once vines are growing on them, you will never notice that they’re not round. The alternative, using maple branches, looks great, but the wood will fall apart in a much shorter time, probably three years.
Tip 5: To build the top, where I have three pairs of rafters, join two rafters together with an 8-inch overlap. Hold two pieces in place to see how long your rafters need to be. Then screw through the two pieces 8 inches from the top. With a helper on one side and you on the other, hold the rafters in place. I like a “tail” that hangs over the top cross piece, anywhere from 8 to 16 inches. Then screw down through the rafter on one side, measure the tail to be the same on the other, and screw it down. I like a nice low “roof angle” for a Japanese look.
This all may sound difficult, but it really isn’t, and it will please you for years to come. If you build one, please send me a photo. Depending on your skills, you can build an arbor like this in a day  or perhaps a weekend.
Email henry.homeyer@comcast.net.  





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