|Forum topic by Vate||posted 10-18-2012 11:38 PM||2453 views||1 time favorited||9 replies|
10-18-2012 11:38 PM
I’m building tapered columns and an arbor as part of an exterior Arts and Crafts style remodel of our 70’s ranch. The architect’s rendering of the arbor had a straight 6X8 beam going across the columns (picture 1). For both aesthetic and practical reasons, I’ve redesigned the beam to incorporate a Greene-and-Greene style cloud lift (picture 2). This will both raise the arbor higher, and will help me with clearance on the gutters and roof. I’m building the beam out of sapele to match the front door.
Well needless to say it might be hard to find a 24/4 thick slab of sapele so I’m going to build up the beam using thinner pieces. Also, the length of the beam is approximately 15 feet. My thought is that gluing and bolting together these pieces will also make the cutting/shaping easier, and should result in a much more strong/stable final result (full sun and rain exposure).
The third and fourth pictures show my planned beam design and layout. The center beam has the pieces cut a little different so that the “break lines” don’t line up. My plan is to glue the pieces, and to bolt them together as well, plugging the holes with rectangular ebony (or ebony-like) plugs, again Greene and Green style. My thought is that this should provide sufficient strength for the weakest part of this design, where the upper and lower beams come together.
Any feedback, ideas or insight would be appreciated. Thanks.