How to build a door frame for inward-opening double doors?

[BiFuel]

We are working on our glassed-in porch and have purchased a pair of old double doors that lack a frame. Due to the long stairs leading up to the doors, they should open inwards (so that one doesn't have to step down the stairs to be able to open them).

How is it best to build the frame to avoid water standing or running in between the threshold and the door?

All construction tips are gratefully received.

 

[norrbottenstorpet]

I adjusted a frame & threshold on an old inward-opening door. To completely secure against water running along the door leaf and down towards the inside of the threshold's notch is almost impossible, at least not without adjusting the door (read: mounting an external drip edge). However, I have constructed the threshold as a slightly sloping plane so that water doesn't pool. If you can also ensure that the threshold is made of good wood and can dry out periodically, I think it will last a long time anyway.

Additionally, you can take other measures to minimize the chances of water reaching the door, like a good roof overhang, or a canopy.

 

[BiFuel]

You could attach a thin molding or similar at the bottom of the door, perhaps? Painted in the same color as the door, it's barely visible and leaves only a few small nail holes if you need to remove it.

 

[verktygsgurun]

Place a "nose" on the door leaf just above the threshold. The nose is intended to divert most of the water away from the gap between the door leaf and the threshold. By nose, I mean a longitudinal strip with a beveled top.

Edit... Bifuel was faster😄

 

[Kurtivan]

Such noses are on our old inward-opening double doors. They are solid with a projection of 65 mm. In one of the window panes, "1921" was engraved; unfortunately, that pane was broken and had to be replaced.