Sectional concrete garage

[whyme!]

I have bought a second hand one to use as a shed.
Question is how easy are they to drill and fix wood framing to. The garage door end i want to put a window in and smaller door constructed from a wood frame so need a fixing

 

[masona]

Do you not have any pre-holes in the slabs, they normally have 4 holes per slab?

 

[noseall]

You will find it difficult to drill and fix into the section because it is so thin i.e. less than 50mm.

I would be thinking about fixing a sub-frame, say 4" x 2" at the back of the aperture, as opposed to inset. This frame could then be fixed from outside in. Drill holes from the outside and say use 80mm screws through from the outside or even coach screws.

Looking from the edge of the aperture you will then see 50mm sectional garage and 50mm edge of timber sub-frame.

You could then fix your door and window frame into the inset timber frame. This would also mean you can set it back slightly from the external; edge of the concrete sections allowing you to pipe a bead of silicon down the abutment.

 

[Irving]

I have bought a second hand one to use as a shed.
Question is how easy are they to drill and fix wood framing to. The garage door end i want to put a window in and smaller door constructed from a wood frame so need a fixing

It is possible to get additional panels if you know which manufacturer. This would be quicker/easier/more weather-resistant than a timber frame.

For the door/window/frames fixings use the 3 holes already provided (2 on 1/2 height sections). Your frame would have to go across the outside of the ends to utilise the holes. Depending on the type/manufacturer it is possible to drill, but you have to be careful not to hit/damage the reinforcing bar. The advice I had from both Compton and Hanson was not to drill but to use the existing holes and some adhesive - thats what they do. (Pink adhesive was recommended). Your frame will need to be substantial, at least 3 x 3 uprights and cross members

For insulated internal wall covering use the same adhesive to mount 50x47 softwood battening top and bottom and at 1m or 1.2m level (depending on section type/height of openings) and vertically at section joins (about 615mm) fill with friction-fitted 50mm XPS/PU insulation and cover with a vapour barrier membrane then screw on 11 or 18mm OSB, ply or plasterboard as prefered.