WHEN ORDERING MORE THAN 1-CALL FOR COMBINED SHIPPING. Add-on, or design your own single piece of 8' straight sturdy, but workable satin finished aluminum track. Track can be mounted directly to the ceiling, or wall (with optional wall mounting brackets, not included). Straight track lengths can be easily shortened using a hacksaw, or skill saw. Track is 29/32" x 11/16" x .050 extruded 6063T5, anodized aluminum. Inner surface is center ridge-grooved for easy installation. Maximum weight per foot: 2.4 pounds. Oversize shipping rate applies. 12' track units are available for $50 each (call to order- subject to additional $50 oversize shipment fee). Must ship FedEx