Although this is listed as a contractor wheelbarrow, I wouldn't recommend hauling any very heavy material. The tray is not very heavy duty, and probably would not stand up to much abuse. I have an old Craftsman wheelbarrow with a smaller, but very heavy duty tray. I mix cement in it, haul rocks, bricks, stumps and other heavy materials in it, and it has kept going for over thirty years. I don't think this one would stand up to such abuse. I'll use it for mulch, soil, and plants, but nothing heavy, nor will I try to mix cement in it. After I purchased this one, I found a Jackson wheelbarrow (6 cubic feet) at Lowes for the same price. It has a very heavy tray, probably as good as my old Craftsman. Should have done a little more research before making my purchase. I always go for the free shipping and no tax, but it would have been more prudent to pay the tax, and bring on home that was already assembled.
On the assembly note, it wasn't very hard to do, but after completing it, I noticed that the wheel slipped from side to side on the axle. I placed a call to True Temper, and was able to talk to a very knowledgable lady, who shipped me some wheel spacers. I think these should have been included as part of the original shipment, but it all worked out okay in the end.
If you want a very heavy duty 6 cubic foot wheelbarrow, I recommend the Jackson, not the True Temper.