I am converting the roof of our bungalow to accomodate 2no. bedrooms with ensuites. The roof centre of the roof had previously been converted into a room but the first floor joists were installed above the orginal ceiling joists giveing a total depth of 320mm. The span for the new ensuite only needs 200mm joists which i can sit parrallel to the ceiling joists, giving a 120mm difference. I could lift the joists to the same height but this would seriously impact on the usable space left due to limited head room. Question is, am i allowed to install a step like this or does building control restrict this eg consider it a trip hazard. Any help appreciated.
thanks
thanks