How to build a double winder staircase?

Unlike a spiral staircase that twines around a pole, a winder staircase turns along the corner. So, these types of stairs are generally connected with two or more sections of stairs. For a limited space builders often remove the L-shaped or U-shaped staircase and install a winder stair. The Winder staircase takes less space and makes the house look more beautiful. Since the winder staircase makes a house look pretty, let us learn how to build a double winder staircase.

How to make double winder staircase design?

1. A single winding consists of three treads that turn 90 degrees in a corner. But Double winders have two threads that turn at an acute angle. As per the building guidelines, the tread must be 6 inches wide at the narrow end and at least 9 inches wide at the point and at least 12 inches wide from the narrow end.

2. Take 2/10 inch stock cut attached by 2 ½ inch wood screws and metal joist hangers to construct the landing frames. Nail them to wall studs to secure.

3. Place the ply deck in place and strengthen joints along with 2 ½ inch wood screws.

4. To construct the frame of the winders use 2 x 10-inch stock. Use glue on the plywood and ring-shank nails to secure it. 

5. Strengthen the joints by attaching nails to the winder’s front side.

6. Cut along the riser and tread using a circular saw. You can also use a hand saw for this job.

7. Stringers and the landing headers should be anchored with metal framing. 

8. Cut the riser and tread from ¾-inch sheets of plywood after measuring it. Join the treads and stringers with glue.

9. For the final look, finish the staircase.

This is the process to build double winder staircase. It is definitely not an easy job to build a winder staircase. So, if you have any problem understanding this method, you can definitely hire a carpenter. 

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