in manufacturing the product a simplified technique or method is accomplished in an example method a pre assembled section of fencing railing assembly is constructed and shipped for sale this allows the sections to be assembled under factory conditions rather than under field conditions for maximum efficiency and quality control the pre assembled fencing railing assembly includes a length of fencing railing ready to be installed between a pair of posts or uprights thus the user would install the pre assembled section of 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.