Building a floor. Wondering a bit!

[calle_d]

Currently insulating and furnishing a sunroom. Beams with cc60, 195x45 in the floor. Crawl space underneath (standing height). Lecablock on the walls. I have a couple of questions:

1. Made a hole in one of the floor beams to run pipes & drainage through. How do you reinforce it so that it carries as much as before? It's located 1cm from a wall.

2. One of the floor beams is 2mm lower than the others. How do you level it easily?

3. Will be framing under the floor beams with 45x45 studs to accommodate more insulation underneath. What's the best way to attach them?

4. Under the beams, 22x95 support boards are to be attached to recess the asfaboard in. How do you attach them to the studs? Screws?

 

[calle_d]

1. The floor beam is mounted parallel to the wall and positioned with a 1cm gap between the wall and the outer edge of the beam.

wall | 1cm | | <beam
| | |
| | |
| | |

3,4. So, you mean that first you mount the support board along the 45x45 rule, and then secure the setup with plates on the sitting 195x45 beam?
The plates should then be on both sides of the beam/rule?