More than 800 windows, doors and frames delivered just-in-time

De Waal Kozijnen is now in the delivery phase of the Park Waaijenstein project in Nijmegen. Over 800 plastic window frames have been produced and assembled in recent months. Frame elements that were too large to produce in one piece have been divided into segments. These elements were linked during assembly and then placed in the facade as a single unit.

Design phase

The production schedules were the result of intensive cooperation between the work planner of Ter Steege Bouw Vastgoed and that of De Waal Kozijnen. De Waal made the production drawings, submitted them to the contractor for approval and discussed the logistical process: planning, work sequence and delivery times. Thus the plan was created with the approval of both parties.

A challenging delivery schedule

After approval of the plan, De Waal Kozijnen's Work Preparation Department worked out the schedules containing the buildings, floors, facades, brands, numbers, order and times for the exact delivery of the plastic elements. This with as few shipments as possible and maximum efficiency.

The perfect schedule

"Plotting the schedule for just-in-time deliveries was a challenge," Kamstra explains. "With 160 different brands and nine different series, to be moved on frame trestles with room for eight to 12 elements, it was a nice logistical puzzle."