Newhouse Electric 1-5/8 in. 14 Gauge Metal Strut Channel with Slotted Back | Half-Slot Steel U-Channel is Pre-Galvanized Metal and 2 Feet Long | for Maximum Support with Minimum Pieces

I used a couple of these to reinforce a solar panel stand on top of my sheds and they worked great. The 14 gauge metal is strong and heavy, much sturdier than the 16 gauge struts that came with the solar stand kit. For the price these are totally worth it IMO.

Just cut off whatever length you need and the fittings work perfect to secure pipe

I used these as part of my solar ground mount. They allowed me to extend an off-the-shelf kit to provide more space for panels. The price, functionality, and quality is spot on.

Excellent quality and strong.

Used these to add rigidity to an IKEA setup. I have a countertop spanning two Alex drawer cabinets. The countertop had some give to it, and was starting to bow, so I bolted two of these to the underside to avoid having to add extra legs. Worked perfectly. Countertop is sturdy and rigid now, no more bowing. Just needed to bring my own washers and screws.