How Do You Install Floor Joists In Loft Conversion?
We have just finished doing ours. What we had to do is put new joists along side the old ones. You will be amazed at how much the old ones will have sunk in the middle. Don’t consider using them for anything other than continuing to hold the ceiling up. Don’t nail into them. Our spans were in the region of 10 to 12 ft and we had to use 200mm x 50 timber. Try and buy the lot in one hit and have them “Justified”, They will all arrive at the same size which makes everything from then, on very easy. You will need two joists where a wall is to sit on it and always think about what you are going to nail your new floor to. You will need two together either side of the stair opening as well.
