Semicircular staircase. In addition, it has a unique shape and compactness, which makes it indispensable in private homes and other facilities.A properly designed staircase can withstand heavy loads and has a high service life. Data for calculation of quarter turn stairs (90 degrees) and landing The first time I learned how to install stairs it was a fairly slow process and a bit of a struggle. It's a two man job, and especially when fitting winder flights of stairs you could need to have some timber (3x2 or 4x2)to hand to use as props. Gooseneck. Rosette. Double Stringer Staircase is suitable for wider staircases design, the installation of two stringers is simple and convenient, very firm, you can get more width. LAL - 45 kB. Calculation method of wooden stairs Enter the required dimensions X - aperture width of stairs Y - The height of the opening Z - Width of stairs F - Ledge steps W - The thickness of the steps C - the number of all-speed C1 - number of steps to lower the March C2 - Number of rotary stages Help Calculation of the stairs with a pivoting steps of 90°. Fig. Double winder staircase. The sizes on these drawings are based on a 2600mm Floor to Floor Height and a width of 860mm overall strings, these drawings are here as a guide to help you identify the layout of staircase you require, 99 % of the staircases we supply are made to measure. When you observing the staircase from above, it forms L-shaped structure. Winder stairs are a variation of the quarter landing staircase, but instead of a flat landing, they have a pie or triangular-shaped at that corner transition. For properties with a little more space than usual these double turn quarter landing staircase drawings can be the basis for a great staircase. In these type of stairs the flight of stair turns 90 degrees art landing as it rises to connect two different levels. This meant we were able to maintain the essential four-sided form without obstructing the staircase’s sharp turn. One wall is an external brick wall, the other wall is a stud wall. Share. The difference between the straight flight stairs and 90 degrees turn lies in the fact that L-shaped stair has two flights located at 90 degrees angle and one landing connecting them. Each turn winder turn has a 3 tread kite winder design or can have a 4 winder design. Method 2 : The walkline is located half-way along the stair width Method 3 : The walkline is located 2/3 of the way along the stair width, measured towards the inner handrail Method 4 : The walkline is located 50cm (20") from the outer handrail This was achieved by gluing together two triangular quarter newels (cut from large newels) to form a central newel post. If you don't receive the email within an hour (and you've checked your Spam folder), email us as confirmation@grabcad.com. Quarter landing staircase. The staircase is l-shaped winder stairs made of natural wood or high strength aluminum material. A winder is a triangular or kite-shaped tread which creates a turn in an otherwise straight staircase so that it can change direction without the need for a landing, thus saving space. For out of hours queries, email hello@stairbox.com. L-shaped (a.k.a. The staircase is a double winder style that winds over the existing main 'up' stairs with a quarter landing over an existing hallway. The double winder staircase is also popular. This is an illustrated description of the stair calculator with 90 degree turn or in other words quarter turn staircase or L shaped staircase. Double Winder Staircase drawings Right Turn no Handrail: Double Winder Stair plan drawings folder - Right Turn With Handrail : Double Turn Quarter Landing Stair Plans. February 5th, 2017. Winder Stairs. Strings - 32mm Engineered Pine Treads - 22mm Engineered Pine Risers - Pine Faced Plywood Handrail - Pine SHR Profile Newel Posts - Pine 90mm Turned Newel Cap - Pine Ball The Bottom step is a Curtail entry Step The Spindles are not in place in this picture.