Any builders? - Cutting out rafters?

Just to clarify... I'm cutting out ceiling joists to make a ceiling hole into the attic large enough to fit a loft ladder, it can't fit the other way as there'd be nowhere to extend the ladder. If I only cut out one joist it still doesn't fit. The loft space/roof ISN'T built/supported with modern 'A frame' trusses. The pics in the opening post represent a part of the loft (over a bedroom) that is approx 3sq/m

Word from the wise about loft ladders......don't get your fingers caught in them.
A couple of my left fingernails look like I have met with the Spanish Inquisition.
 
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