Aside from using words like "spanner" instead of wrench and some insistence on metric torque specs (who uses the metric system, anyway?) the included instructions are very detailed and walk you through the install. Support the rack off the ground and pre-assemble the mounting feet to the rack. There are several different mounting holes, so it's easiest to measure the width of your rain gutters and match the bracket spacing. The steel rack we chose (PN 3800020M) is much heavier than the alloy version, so not having to pull it on and off the vehicle a bunch of times is a bonus.