To meet minimum Code may require footings under the thin slab to take the point loads at the posts. The landing requires enough framing strength to support 40# sq.ft., along with a few diagonal braces (or drywall) as it's elevated 4-5' in the air with bracing only from the stair sets direction. I'd build to minimum Code for the paper trail (handy when selling), and a permit if needed because you are replacing a structural element that may also be egress to/from the basement.
Hit “next section” to read them all: http://publicecodes.citation.com/ico...011_par007.htm
Pictures, we like pictures……lol.
Clothes taking longer to dry?
Clean the dryer screen in HOT water if using fabric softener sheets.
They leave a residue that impedes air-flow, costing you money.
Clean the ducting in the last six months? 17,000 dryer fires annually!