What does the vertical roof mean in practice?

The roof panels run down the slope instead of across it. Snow, rain and leaves slide off instead of pooling, which is why vertical-roof carports are preferred in snow country.

Will it fit a tall truck or an RV?

The high-clearance design is meant for tall vehicles, but measure your vehicle's height and check the leg height before ordering. Roof peak height is not the same as clearance at the sides.

Does it come with walls or just the frame and roof?

It is an open vehicle shelter: steel frame, roof panels and hardware. Side and end walls are not part of this unit.

Can I install it myself?

It is a substantial steel structure. Most owners use two or more people or a installer, and the site must be level and anchored against wind uplift.

How does it compare with a fabric carport?

Steel lasts far longer and does not flap or tear in wind, but it costs more and is harder to move. Fabric is quicker to set up and easier to relocate.