Jib doors are also known as hidden or invisible doors because they are decorated to look like the wall with concealed hinges and hardware. It’s very important for your jib door to remain perfectly straight so as to maintain the seamless appearance in the wall hosting the jib door.

Jib doors must maintain the seamless appearance of just being a part of the wall, except in the instance of a bookshelf doorway, where the door itself is also a functional bookcase on one side of the door using the same concealed hinge and door securing mechanisms as the invisible or hidden door, like these classic hidden hallway doors.

Of course, it all depends on the size of the opening and the construction of the existing wall that will host the jib door, too. The hidden door will have two vertical seams which need to remain flawlessly straight and true to remain invisible to the naked eye. Unless the doorway will span from floor to ceiling, there will be a horizontal seam at the top of the door which may also need to appear the be seamless.

Hailing from the Old World, jib doors have made there way to the Americas. While no longer used to conceal clandestine activities, including one or more jib doors in your contemporary architecture design project is growing in popularity and is influencing the design, engineering, and building of invisible jib doors. There is no longer any suspicion or negative implications, or having to answer the question, “Why do you have a jib door?” Jib doors are a growing segment among modern doors.

If your jib door is warped, the seam will become visible thereby defeating the purpose of having a hidden door if it no longer appears to be an invisible door at all, and the door’s secret is blown. That’s where Sing Core comes in.

Millworks and high-end custom door manufacturers know they can rely on Sing Core’s ability to provide a warp-free job door blank which will remain straight and true enough to protect the hidden door’s secret of invisibility over time.

If you’re dreaming about having a very large jib door, like a floor to ceiling full moveable wall, Sing Core’s light weight (weighing-in at a fraction of other solid jib door cores) and high strength (660+ PSI, stronger than steel pound for pound) enables architects, designers, and engineers to realize a full articulating wall, which can pivot, swing, or slide open and closed easily via cell phone. Where there once was a wall, there is none and you have full access to the space.

Make a Whole Wall Disappear

Then there’s this case; What if you wanted the whole wall to be a door. Here’s a job where the client wanted to whole exterior wall converted to bifold jib doors. No problem, if they have Sing Core inside.

Just an ordinary exterior wall. Right?

Extraordinary exterior bi fold doors!

Plus, if your invisible door has Sing Core inside, you get the added safety and security of having a fully insulated sound deadening jib door which is also highly effective in maintaining consistent temperature control on either side of the wall door.

And if that’s not enough to make you insist on specifying Sing Core inside your next architectural jib door, consider this:

Your jib door could be backed by inventor Peter Sing’s unparalleled 50-year warp-free guarantee. Sing’s jib door cores are guaranteed not to warp, bend, twist, or otherwise fail (including full structure and delamination) for a full 50 years.

No other Eco-friendly lightweight high strength door can compare in terms of weight vs dimensional stability.