I've just opened up the under stair area with a plan to convert into storage. Can anyone tell me what parts A and E are doing in the following images? They don't appear to be load bearing to me.

I want to remove A so I can fit a door between B and C.

all parts

A close up Doesn't look to be doing much... maybe stop the stringers from splaying in/out?

E top I can't see how this is doing much either...

  • Stopping the stringers from splaying out seems like a pretty important role to play, though the treads and risers will do a pretty decent job of that. – FreeMan Aug 3 '20 at 11:30
  • BCD are for attaching drywall ... E is the same (with few additional 2x4) ... A is for attaching drywall with a possibility of a door or access panel – jsotola Aug 3 '20 at 12:02
  • In a two-stringer stair I wouldn't be surprised if the intermediate studs prevent a lot of bounce. No, they're probably not completely necessary, but they may help make the stairs feel more solid. – isherwood Aug 3 '20 at 12:40
  • @jsotola that makes total sense now you've said it, thanks. I think I'll be replicating B,C on the back wall anyway, to put insulation and plywood backing on, so if A is doing anything to take out any bounce as isherwood says they should help. – Oliver9523 Aug 3 '20 at 15:49
  • @jsotola make an answer out of that so it can be accepted – FreeMan Aug 4 '20 at 12:56

None of those components appear to be load bearing.

I think that the following are the possible reasons for their existence.

BCD are for attaching drywall.

E is the same (with few additional 2x4).

A is for attaching drywall with a possibility of a door or access panel.

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