how to install locking doorknobs on double interior doors?

[Eric Moesle]

I have a house where the entrance to the master bedroom is via
"double-doors" meaning there is one per side and they close toward/against
each other. Right now they each have just "dummy" handles instead of
working door knobs, and they "click" shut via a recessed ball at the top of
each door against the frame.

Result: no way to lock the doors to keep the kids from walking in, and
"clicking" the doors open and shut requires significant effort.

I want to put working door handles in, with a means to lock them. All the
"how-to" sites show how to drill for a new single doorknob and lock, but how
do I set these against each other? Will one side be a regular lockset, and
the other still a dummy, with one of those "pole-sliders" keeping it from
opening? Do they make locksets specific to this application? Any web-site
examples to refer me to?

Your advice is appreciated.

[Roger Shoaf]

You got this about right. In the application you describe you can install a
bolt at the top of the inactive door, and a locking knob on the active door.
If you have a threshold, you can put a bolt at the bottom also, but most of
the time bedroom doors have no thresholds.

The other option is the ugly one where you install what they call a
"jummyproof" lock. These are a locks that interlock the active and passive
doors and will work without flush bolts.

You might also find a cabinet catch that has a bar that swings over and
hooks in to the other door. These are used on chest lids. It can't be
operated from the outside, and it might be able to be flipped if someone
slips something thin in-between the doors, but cost wise and aesthetically
this might give enough privacy for the kind of mischief you appear to have
in mind.

--
Roger Shoaf
If you are not part of the solution, you are not dissolved in the solvent.

Eric Moesle <eric....@worldnet.att.net> wrote in message
news:y_un6.139$Ey1....@bgtnsc06-news.ops.worldnet.att.net...

[Christopher S. Dargue]

My parents have a set of double doors in the front entrance of thier house.
There's only one doorknob, on the *daily use* passage door. The other door is
held in place by 2 (as you say) *pole-sliders*, one straight up into the top of
the jamb, the other straight down into the floor. Been like that for 30 years
now. If/when they needed to bring in a big item, they would pull back on the
*sliders*, and open both doors.

My guess is that you could leave one set of the dummy doorknobs, and replace the
other with a working set. The *pole sliders* would be on the door with the dummy
handles.

That all make any sense??

Good luck ~

Chris

[Roger Shoaf]

The official name is either flush bolts, or surface bolts. Flush bolts are
usually found on the edge of the door and they are mortised in, surface
bolts are on the inside and attached to the surface with screws.

On double doors one is active, the other is passive. (In most cases.)

Christopher S. Dargue <cda...@bitstream.com> wrote in message
news:3A9EA0FA...@bitstream.com...

[stpoc...@gmail.com]

I have what is described in my master bedroom but there’s a problem. The left hand door has a slider lock at the top only, which is fine. There is a lock on the right hand door but it easily is opened with any slight pressure on the doors. I suspect this is the case because there is no anchor or slider at the bottom of the left hand door to make it rigid and prevent ants give. The problem is that we just had new hardwood floors installed and don’t want to drill into them for the door anchor. Any suggestions on how we can have a locked room?

[micky]

In alt.home.repair, on Mon, 24 Jun 2019 22:15:09 -0700 (PDT),

stpoc...@gmail.com wrote:

>I have what is described in my master bedroom but there’s a problem. The left hand door has a slider lock at the top only, which is fine. There is a lock on the right hand door but it easily is opened with any slight pressure on the doors. I suspect this is the case because there is no anchor or slider at the bottom of the left hand door to make it rigid and prevent ants give. The problem is that we just had new hardwood floors installed and don’t want to drill into them for the door anchor. Any suggestions on how we can have a locked room?

That's why there is only a slider lock at the top.

Screw |_
| shaped brackets to the doors and put a 2x4 from one door to
the other?

Or do you want to lock them when you're not home?

[devnull]

On 6/25/19 1:15 AM, stpoc...@gmail.com wrote:
> I have what is described in my master bedroom but there’s a problem. The left hand door has a slider lock at the top only, which is fine. There is a lock on the right hand door but it easily is opened with any slight pressure on the doors. I suspect this is the case because there is no anchor or slider at the bottom of the left hand door to make it rigid and prevent ants give. The problem is that we just had new hardwood floors installed and don’t want to drill into them for the door anchor. Any suggestions on how we can have a locked room?

Is this to keep little kids out while you're making more little kids or are you trying to slow down some do-bads while you grab your Clint Eastwood special?

[gfre...@aol.com]

On Mon, 24 Jun 2019 22:15:09 -0700 (PDT), stpoc...@gmail.com wrote:

>I have what is described in my master bedroom but there’s a problem. The left hand door has a slider lock at the top only, which is fine. There is a lock on the right hand door but it easily is opened with any slight pressure on the doors. I suspect this is the case because there is no anchor or slider at the bottom of the left
hand door to make it rigid and prevent ants give. The problem is that we just had new hardwood floors installed and don’t want to drill into them for the door anchor. Any suggestions on how we can have a locked room?

How secure do you need it? You can always use a vertical dead bolt
that will lock the 2 doors together

https://tinyurl.com/y6o825jp