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The XR1000 solar panel mounting rail is the most heavy-duty rail in the XR family. It's built to withstand extreme climates, snow, and wind loads (see "Specifications" tab for details) and achieves 12-foot spans, making it idea for large commercial PV systems.
IronRidge's XR family of mounting rails are made from 6000-series aluminum alloy and protected with an anodized finish to prevent corrosion. Their force-stabilizing curved profile increases their structural strength and resists the bending and twisting forces a sloped roof can generate on solar panel racking over the decades-long lifetime of a PV system. This added strength helps XR1000 Mounting Rails achieve 12-foot spans, allowing for fewer roof penetrations and a more cost-effective system design on both flat and pitched roofs.
Note: XR Solar PV Mounting Rails are 
items. See "Shipping" tab for more information.
Note: item.
Though lightweight, all XR Solar PV Mounting Rails are long enough that they 1) must be shipped by LTL freight and 2) incur an oversize shipping charge. Because of this, the shipping cost for a few dozen rails isn't much more than it is for just a few rails. So it's better to order one or two extra rails than to be one or two short and have to place a separate order later!
