Some composite and metal railing companies offer curved railing that can be custom ordered to match your deck's radius. Fascia board is flexible and can be installed over the rim board to clean up the edges. If the decking is hot it will be even easier to bend into the desired shapes. You can then bend the pressure-treated plywood strips across the front of the joists and screw it into place.Ĭomposite decking is flexible enough to be bent across curved sections of the deck. Or you can use 1/2" plywood in layers built up to 1.5" thickness.Īnother method for installing a curved rim or header board is to soak strips of pressure-treated plywood in hot water for about an hour to increase its flexibility. This involves scoring the 2x material with a circular saw to allow it to bend across the radius. The rim board can be bent using kerfed cuts. This will strengthen the frame and create a good clamping surface to bend your fascia board across the curved radius.
#COMPOSITE DECKING STEPS INSTALL#
It is always a good idea to install blocking between joists along the curved ends of the deck. You can trace and cut these plywood pieces into templates that you can lay out on top of the deck to trace your radius. Lay pieces of plywood along the circumference of the circle.
#COMPOSITE DECKING STEPS FREE#
If the pivot point is located in the house, you will need to lay out the circle in the yard. Get free shipping on qualified Composite Outdoor Stair Risers & Treads products or Buy Online Pick Up in Store today in the Lumber & Composites Department. Then, you will cut the joists to the proper lengths and prepare your front rim board to cover the ends of the joists against the curved section of the deck. Arc the compass across the front ends of the joists to mark the radius on each side of the joist with a construction pencil. If the center point lands in between joists, you will need to install cross blocking to attach the compass pivot point. Leave the screw a bit loose so the compass board can turn. Use your plan to locate the pivot position and fix your compass to the center point with a screw. Next, you will lay out and mark the radius across the ends of your joists.
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You can run the ends of the joists wild past the beam because you will be cutting them back all at once. Joists are usually allowed to cantilever a beam by 2' without hiring an engineer.
#COMPOSITE DECKING STEPS SERIES#
In order to build a curved deck, you use a series of angled dropped beams, posts and footings to support cantilevered joists that will extend across the curved or round section of the arc. You will need to use an AutoCAD program or graph paper to determine the center of the circle and the length of the radius (the distance from the center of the cirlce to any point along the edge of the circle). Curved decks are easier to draw on paper than to build in the real world. It is always best to start with a good plan. Curved decks are interesting and unique, but they are somewhat difficult to build because deck framing materials are straight and rigid.
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