Help with drilling near a lintel

16 Aug 2006
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United Kingdom
10 years ago, a supporting wall was knocked down leaving a 1.7m hole. I don't know what kind of lintel was used. I want to hang sliding doors in that hole, but I am not sure how to proceed.

If I hang the doors from the inside, I have to drill up into the lintel, possible drilling into an RSJ.

If I use sliding door gear on the side of the wall, I drill horizontally, but not sure what I drill into. I'll try to draw a diagram:

| <---- drill this way

| drill this way

or could another type of lintel have been used.

The wall is solid brick (1920s build).
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At 1.7m span, it may be a PCC (concrete) lintel or it could even be wood.

The bigger question is - why sliding doors? :confused: They are a right pain to fit and have few redeeming features.

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