Well I haven't tried this with hardware cloth, but I have built hundreds of tents for construction sites for windy Wyoming cold weather with reinforced plastic (Rhinoskin). The tighter they are the better they work - it's flapping that wears them out, and/blows them up, so I got good at getting them as tight as a drum. I reckon some of those techniques could work with hardware cloth. As someone else stated, once it's stapled the first time, that's as tight as it'll ever get. What I would do for a tent is lay the material out to make sure it's running straight first, then I'd roll the plastic one roll on the furring strip (1x2, really 1 1/2" x 3/4") so not just the screws and pressure are holding it. The pressure will let up with wiggling and wood shrinkage, but the plastic it's self is holding plastic, the more it's pulled on the tighter it holds - like a knot, or a dallied rope on a saddle horn. The screws and furring strip hold some but mostly hold the wrap in place. I don't know if the wrap is necessary for hardware cloth, it's tuffer than plastic, but I'd use plenty of screws if I didn't, or couldn't use the wrap, and I'd sandwich the furring strip to the box with the wire in between. I'd also do it just around a corner so it was pulling "sheerly" rather than outward on the screws and had a corner to add friction to the pull strength. I'd start by getting one side attached making sure the material was straight before it was tight. This gives you something to pull against. Then I'd get four hands involved. I'd cut off a little more than I needed if plastic, enough for a wrap with a few screws to start it, and to get around the opposite corner then I'd pull for all I was worth evenly on the stick while my partner screwed it on tight. Like I said before, I never tried this with hardware cloth, so I'm thinking it's maybe too stiff to wrap. If it is, I guess one could go even further around the corner on hardware cloth and make a sandwich of two furring strips to each other that were at least one hand wider on each side of the wire to get a nice even strong pull on while the helper screwed a third strip opposite the starting strip to the box. The handle then taken off and the wire cut of flush. An angle grinder with a cut off disc cuts much easier straighter and close to an inside corner than anything else does. Then I'd go to the sides and if a small flap is on each, I'd bend one over, sandwich it, then go to the opposite and do the same. I'd tug it some, but if the first hard pull was good and tight, and straight, this direction should already be tight too. If it's not wrapped, or possible to wrap, I'd check the screws in a few days, and each use after, to tighten for wood shrinkage. If they are not good and tight, and applying enough pressure to the boards, what you have made is a slicer, the screws become the blades to your material. Even if they wont slice hardware cloth, you'll lose your tension. Everything I've written here applies even more so to tarps, and how, and why they should be tight too -- forget about using those grommets for long term tarps, especially if you live where it's usually windy.