Curved ramp design

Framing square can be complicated enough. In this case, a client asked me to build a ramp with a modest radius to make it easier to access in their golden years. I laid it out like a parabola, first on draft paper, then creating a grid on a 2×12″ board and transferring the proportions. A thin strip of decking pin-nailed onto the face helped create a smooth, even line.

Pin nail a scrap 1" piece of decking to the board to create a smooth arc

Pin nail a scrap 1″ piece of decking to the board to create a smooth arc

Next, I cut this piece with a jigsaw and used it as a template to make a total of 6 joists. These were then clamped up with pipe clamps and planed/sanded flat and perfect. The back (deck edge) was cut flush using a circular saw after being marked up while clamped, and the blocking was added, nailed through the sides when possible and toenailed otherwise.

Block the joists and touch up the radius with a block plane

Block the joists and touch up the radius with a block plane

The final piece was mounted into place with ledger locks, stair strapping, and corner brackets for a hold that will last a lifetime!

Attached and waiting for decking!

Attached and waiting for decking!

Now if that extra decking will finally be delivered, I’ll finish up!

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