The biggest staircase gallery wall mistake? Trying to hang a grid layout without a template. Trust me, you’ll end up with crooked frames and a lot of holes in the wall. Measure the stair angle, cut paper templates, and tape them up before committing. it’s worth the extra 10 minutes. Save this for later! #staircasegallerywall #gallerywalldesign #gridlayout #staircasedecor #modernwalldecor