Can’t comment on the cedar decking specifically, unfortunately, but I used Stewart for kitchen/stairwell remodel last summer. Good guys, good price, good reputation amongst good subcontractors I’ve worked with. I am just about to order furring, 2×4’s, qtr round, acx from them for laundry room/basement. I have confidence in Stewart Lumber, though I do wonder if I’m not a little whacked from too many remodels so close together. Ack! ;)