Just finished the fascia wrap on my stairs — a few observations

I had a similar battle last summer when I was wrapping the rim joists on a wrap-around porch. I used those 12-inch Trex Transcend fascia boards to hide the pressure-treated frame, and trying to get the mitered corners to stay tight without gapping in the July heat was a nightmare. I ended up back-cutting the angles slightly to ensure the front edge touched perfectly, wich is a trick my neighbor showed me.

That specific notched cut where the stairs meet the landing is always the true test of patience. I remember spending nearly forty minutes on a single piece of white Azek trim because the concrete pad wasn't perfectly level. I had to scribe the bottom edge to follow the slight dip in the patio while keeping the top edge flush with the first riser. It felt more like fine cabinetry than outdoor construction.

Using the color-matched screws makes a huge difference too. I used the Starborn Deckfast system with the little plugs on my last build. Once those plugs are hammered in, those tricky seams you worked so hard on almost disappear. It’s those tiny details that separate a DIY weekend job from something that looks profesional for the next twenty years.

I actually went a different route when I was finishing my back stairs last fall. I couldn't stand the thought of seeing a seam between two riser boards on that long stringer run, so I ended up buying a 4x8 sheet of AZEK PVC trim. I laid the stringer itself down on the sheet as a template and traced the whole profile. Cutting that long, continuous zigzag with a jigsaw was nerve-wracking because one slip meant wasting a $150 sheet of material. The hardest part for me wasn't even the stringer wrap, but where the top step meets the deck's picture-frame border. I spent nearly two hours on those miter cuts where the TimberTech boards transition from the flat deck surface down to the first riser. Getting those angles to sit flush without a gap required alot of trial and error with a scrap piece first. I tried color-matched screws at first but ended up switching to the Cortex hidden fastening system with the little PVC plugs. Once you tap those in, the holes completely disappear. It makes those notched cuts look like they were molded right into the frame. Taking the time to hide the fasteners really highlights the precision of the cuts themselves.

I'm finally jumping into my first big deck build next month and reading about these tight seams is getting me so hyped! I’ve been practicing my miter cuts on scrap wood all week. Quick question for the pros—did you guys find it easier to use a circular saw or a jigsaw for those tricky notches? Also, since we’re talking about the finished look, has anyone here messed with those LED strip lights under the rim joists? I'm debating if they add to the vibe or if they're just a massive pain to wire up.