Yes. Attaching the locking door is a simple step added to the standard assembly process. You simply detach the Tensaflex two inches from each side, place the door on the base, open the door and press the door frame’s Velcro against that on the Tensaflex.
Assembly is easy. NO TOOLS ARE REQUIRED!....

SOLO 100 shown above. Locking Door and Carrying Bag are optional.
The setup instructions for the SOLO 100 are as follows:
Step1
Situate the base at the desired location, stretch out the Tensaflex and place it according to the guiding dots. Verify proper vertical direction.
Step2
Put together the Velcro on the base with that on the Tensaflex. Leave both sides slightly open.
Step3
Place each of the shelves, starting with the lowest one, matching the guiding dots.
Step4
Place cover, starting with the guiding dots, firmly pressing the two shells of Velcro against each other. Adjust the Tensaflex so that all the Velcro lines are securely fastened.
To dismantle follow the same steps in reverse order.
SOLO’s locking door is designed to add privacy and a limited amount of security to your portable podium. Any truly valuable items would be best left in a more secure location. The SOLO locking door is intended to be used mostly as a deterrent, not as a safe.
Yes. The SOLO 100's are designed to hold up to 290 lbs.