How to make this stair. Select the Polystair icon from the toolbox. Click on your Plan to start drawing the stairs. Move the mouse to the right and in the Tracker, enter Distance = 1800 and Angle = 0°.Press enter to confirm the settings. Next, decide how many steps you'd like to have. A standard step in the United States is 7 ¾ inches tall. Divide the height of your slope by 7 ¾ inches (or however many inches tall you've decided to make the rise of your steps). If, for instance, your slope is 77.5 inches tall and you plan to build steps of 7 ¾ inches, you will need 10 steps.

Stairs, staircases and steps can very in many different ways. I'm going to attempt to explain how to build a staircase with general staircase information, to make it informational to any size or shape and any 'would-be' stair builder. The most important thing to remember in staircase construction is that each step, weather you have 3 steps or 100 steps, all MUST be the same size (Rise and Run on each step must be the same). This is espescially true in USA and Canada, its against building and fire code for steps to vary in size.

I recommend that anyone building a staircase in there home contact a building inspector to inquire about current and applicable fire/building code. But the basics are (generally): - All steps must be the same size (the rise and run must be the same on every step) - Width of each step must be at least 2 feet 8 inches (normal household steps are generally 3 feet 6 inches) - Maximum step riser hight of 7 3/8 inches - Minumunm run length of 10 inches - Steps 44 inches or more wide must have handrails on each side - Fire code normally says; do not allow stairs to rise more than 12 feet without providing a landing.

The length of the landing should be at least equal to the width of the stair tread. Note: As far as I know 'Open Risers' are against code due to safety reasons, I'm confident this is true in homes but check your local code to see. You might get away with it if its outside or in a garage or something. But I'm not sure.

There is some thought that 'Nosing Projection' is or will be against code due to tripping hazzard. Again check locally if you plan on building 'Nosing Projections' One Final note, I'm going to draw most steps or find relevant pictures online. I will be building Cliffside stairs this summer and will maybe add some pictures then or even a new instructable due to the periles involved in cliffside construction. The most complicated part of building a staircase is making the risers. If you are building an outdoor staircase with no overhead obstructions its gonna be a lot easier, you need only decide on the angle of your stairs, measure and cut away.

If you are building a staircase indoors you need to take into account the headroom. Due to the complication in these indoor staircase calculations I'm going to refer to a. As well I'll post this detailed diagram. For uncomplicated staircases and once you have your lenghth and angle calculations this is how you measure and cut a riser. Take the board you are using for the riser and measure the angle to the bottom left corner and draw a line.

Measure your rise height from the line in step 1 to the edge of the board and draw a line. Measure from the run length from the rise point 90 degrees and draw a line See Diagram #2 cut out all the lines drawn and then make a duplicate, and triplicate depending on step width. This instructable does not teach somebody how to build stairs. You are supposed to take a framing square and mark the rise and run on it and lay it on the stringers and make the marks for cutting it out. Or better yet use the inexpensive little brass stops that are designed for clamping onto the square that are made specifically for laying out stairs. You are correct in saying that the rise and run should be the same on all the stairs.

The L shaped framing square will also show where the cut the top and bottom of the stringers. I'm a professional carpenter and have build many sets of stairs but I couldn't have learned to build stairs with this instructable.

One thing that should be mentioned is when cutting out the notches for the treads and risers. You should finish out the cuts with a sawzall, jigsaw or even a hand saw instead of overshooting the cuts with your circular saw to finish them out, like I have seen done by so many carpenters. Many supposedly professional carpenters do this to save time and it severely weakens the stringers and it's just sloppy half arsed work.