During constructing masonry wall in a building, we need to keep various types of opening in wall. One of them is door rough opening.
Door rough opening is kept during constructing masonry wall to fix a door in that later.
Door rough opening is always bigger than the door size. The question is, how bigger it should be?
To define the size of door rough opening, you need to consider few things.
In this article, I’ll show you what things you should consider to keep door rough opening in a masonry wall.
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3 Considering Things to Keep Door Rough Opening in a Masonry Wall
Suppose, you will keep a rough door opening for a “3-4″ x 7′-0“” door. The width of the door with frame is 3′-4″ and height of the door is 7′-0″. We normally fix the door in a masonry wall with door clamp. So, let’s start with the clamp first.
1. Door Rough Opening Considering Door Clamp
If you buy a ready-made door, it is normally supplied with the door frame. And “door clamp” is previously fixed with the frame.
But, we normally fix a door frame with a masonry wall by door clamps. And later, we just fix the door shutter with frame.
After fixing the door frame with masonry wall by clamps, we just pour concrete in the gap between wall and door frame.
So, to easily move the door frame inside the gap to align it with the wall and to fix the door clamps with the wall and also for pouring concrete in the gaps between door frame and wall, we need to keep minimum 1″ gap both side of the door frame.
That means, the width of the door rough opening is,
= 1″ + 3′-4″ + 1″
As we don’t fix door clamp at the top, so you don’t need to think much about the height of the door rough opening at this point.
2. Door rough opening considering floor tiles
As we know, after doing floor tiles, floor level will be 1½” up. Considering this thickness, door rough height will be (7′ + 1½”)=7′-1½”.
So, When you make lintel above the door opening, keep the lintel’s bottom at 7′-1½” above floor.
3. Door rough opening considering wall tiles
As like floor tiles, wall tiles also need 1½” thickness to be fixed on wall.
This thing is considered when one side of door is flashed with a wall. See the image below for better understanding.
This is normally happen in kitchen and bathroom. Because we use wall tiles in kitchen and bathroom.
So, if you consider wall tiles then door rough opening should be,
= 1″ + 3′-4″ + 1½”
Sometimes, both sides of door are flashed with wall.
In that case, you need to consider thickness of tiles for both wall. And Then, the door rough opening should be,
= 1½ + 3′-4″ + 1½”
If you consider above three things, the door rough opening should be perfect and you won’t face any problem during fixing door in masonry wall.
Another thing. I showed the door width 3′-4″ for example purpose only. We normally use smaller door width than the example in toilet and bigger width than the example in kitchen.
What things do you consider for keeping door rough opening in masonry wall? Please share in comments …