Curved staircase freestanding or attached to one or two walls giving an exclusive impression when replacing the more common L-shaped staircase. They require more time to build and more technical knowledge than conventional stairs. Base curved staircase of the radius of a circle to avoid using rolling machines, step tapered at one end staircase.
Use tape measure to determine the vertical growth of your staircase. This makes it easier to preserve the aesthetic appeal of curved staircase while building secure, uniform size steps. Draw the outer curve where your proposed step width would place it. Also look to this design fits into the area reserved for stairs. Adjust step rise, tread depth and curve radius to develop a workable design.
Take into account the amount of curve itself adds to the length of each side of the stairs and make your stringers suitable lengths. Divide the total increase in the number of steps and subtract the thickness of the tread material. Cut the stems to the height and the width.
Attach tribes and treads the side frames and to each other with trim screws and finish nails. Use framing lumber to make key blocks and install them at every step to strengthen the stairs. Attach the handrail. Exit the treads, risers and outside of the stringers as desired.