fencing railing between the posts in the field the manufacturing method for constructing the pre assembled section can include the steps of a providing a series of pickets with connector holes formed therein b providing at least one connector strip with one or a series of connector bosses formed on at least one side thereof c attaching the connector strip to the one or series of pickets by aligning and inserting the connector bosses into the connector holes formed in the pickets d providing a rail with picket openings formed in an upper portion thereof and with at least one shelf formed on an inner surface thereof and e slipping the rail over the pickets with the pickets extending through the picket openings and over the connector strip to secure the connector strip in place on the shelf and conceal the connector strip this manufacturing method allows for easy and economical manufacture as well as providing a consistently good manufacturing quality also when the pre assembled section of fencing railing is assembled the connector strip is not readily visible it is concealed by the rail in addition to concealing the connection and being readily pre assembled in a factory for later field installation by a user a fencing railing assembly according to the present invention also adjusts to follow rising or falling terrain better than known fencing railing as demonstrated by comparing a known prior art railing assembly fig7 a 7b to the present invention fig7 c 7d it can be seen that the present invention is better able to pivot the pickets relative to the rails in comparison to known railing assemblies for instance known railing assemblies incorporate screws s and or bolts to rotatably.