Sliding patio doors: For sliding patio doors, handing is determined by which panel slides when viewed from outside your home. A left-hand opening door has an operable panel on the left side, and a right-hand opening door has an operable panel on the right side.
If the hinges are on the left hand side, then the door is left handed and the door hardware will need to be left handed as well. If the hinges are on the right, then the door is right handed and the hardware will be right handed. Pretty straight forward!
Look for the Label
If you have sliding glass doors, the label could be a stamped logo rather than a sticker somewhere near the top or bottom of the frame. It's designed to be inconspicuous, though, so you might need someone to help you tilt the door to find it.
The handedness of a sliding door is expressed from the exterior of the structure. A left-hand door opens on the left, while a right-hand door opens on the right. Sometimes, these relationships are denoted by the letters O and X, where O represents the fixed panel and X represents the sliding panel.
Sliding patio doors: For sliding patio doors, handing is determined by which panel slides when viewed from outside your home. A left-hand opening door has an operable panel on the left side, and a right-hand opening door has an operable panel on the right side.
Here's how you can do it: Stand at the main entrance of your house, facing outward. Hold the compass steadily and flat in your hand and ensure it's away from any metal objects that might interfere with its reading. Allow the compass needle to settle and then note the direction it points.
Normally, you can find the model number on a sticker on the thinnest part at one end of each section. This means at the factory or distribution center the stacked doors can be easily identified.
The manufacturer's name is often hidden in plain sight. Look for a stamp or etching on the door's hardware or in a corner of the glass panel. This marking is usually small but should be fairly easy to find if you look closely.
A standard sliding door is a type of door that opens horizontally by sliding, generally parallel to a wall. It appears as a thinner line extending from a dark, wide rectangle. I am attaching a picture with this answer which shows the sliding door symbol.
First, face the door. Determine if the hinges are on the left or right side. If the hinges are on the left, and the door swings away from you, the door is left-handed. If the door swings toward you, the door is right-handed.
If the door opens into the room, stand inside and so that you are facing the door hinges. If the hinges are on the right side, it is a right-hand door. When the hinges are on the left side, it is the left door. If the door opens outwards from the room, stand in the corridor or other room and face the hinges.
Not every door can have its swing swapped. Before beginning the project, you should evaluate your door to make sure you can reverse its swing. First, check if your door is symmetrical from side to side and inside to outside. If it is, a swing reversal will require minimal modifications.
A pre-hung door is a door set consisting of everything that you need to install it into your opening. A slab door is simply just the door. A slab door is included in pre-hung doors. The difference being that the slab door in a pre-hung set will come with the frame and hinges already attached.
All gliding patio doors are handed based on the location of the operating or sliding patio door panel when viewing from the outside of your home. If the operating patio door panel is on the left side, your patio door is a left-handed unit.
Gliding Patio Door, Handing
They are handed based on the location of the operating patio door panel when standing outside your home. If the operating patio door panel is on the left of the patio door unit, the patio door unit is left-handed, and the stationary panel will have the same handing as the operating panels.
If your existing door frame is in good condition, with no warping, rotting, or significant damage, you can proceed with replacing just the sliding glass door.
On most devices, you can usually find the model number on a label located on the front, back, side, or bottom.
With inswing doors, if the hinges are on the left-hand side, you have a left-handed door. If they are on the right-hand side, you have a right-handed door. With outswing doors; if the hinges are on the left-hand side, you have a Right Hand Outswing door.
In your pooja room, the idols of gods should ideally face either the northeast direction. This alignment is considered auspicious and promotes a positive flow of energy within the space. Avoid having the idols face each other or face the south, as this is generally considered inauspicious according to Vastu principles.