Thank you! My wish is installing a new handle. About the door itself ,the holes is near but not on the spot I will drill for handle.(image1) . But door frame is different It may be very very near the drill spot. And one surface is made by concrete.(imag2). How to fill it so that I can install a handle? Certainly bog is best because it can be drilled. I think detailed advises is very best. Also which handle is very important .
As previously mentioned by @r23on, it's best to cut timber to fit the gap on the frame @vica. The timber can be shaped to suit the area and glued into position. Any gaps around it can be filled with a suitable timber filler or bog.
Are you able to source some timber to fit this gap? As a last resort, you could fill the area with Builders Bog, but timber would be more structurally sound.
I can only support Mitchell comments
the best result will come from taking the time to do the task. the joys of DIY
@MitchellMc I want to buy timber to fill it. How about N.8030736? It’s size is 120*35mm. About handle, I want Lockwood 55mm Privacy Leverset. Wish your advised. Thanks!
@MitchellMc I can’t install handle. I want to fix door and its frame first, then ask someone to install it,
@MitchellMc That is great! I will follow your message. My door can’t close easily ,I think bunnings can also fix it which I can pay.