Most of our Order Picking Platforms are made to order and consequently can be made in any size needed for your application. My thought is to keep the width about the same as the order-picking truck to avoid the platform from hanging out of the confines of the combined unit. Most truck manufacturers instruct that operators should normally face the drive end of the unit, if your platform is "hanging out" it seems more likely to be involved in snagging a rack frame. Yikes.