How to Fix a Gap Between Double Doors: Practical Solutions for Sealing and Adjusting

Double doors are a staple in many homes and commercial spaces, providing both entry and separation. However, over time, gaps can develop between the doors, leading to drafts and reduced security. This guide explores practical solutions to fix these gaps, including adjustment techniques and weather stripping methods.

Adjustable Pivot Points for Gap Fix

Many double doors are designed with adjustable pivot points at the top, bottom, or both ends. If your pivot points are adjustable, you can close the gap by moving the doors in very small increments toward the center. This method is particularly effective for doors that are well-made and have properly functioning hinges. Carefully adjust the doors until the gap is minimized or disappears.

Using Metal Inserts with Rubber Seals

For wood construction doors, a durable solution is to use a metal insert with a rubber seal. A metal piece of the appropriate thickness can support a round rubber seal with a flat securing tail. Use rubber cement to attach the tail to the door, ensuring a secure bond. Then, slide the metal piece over the tail and secure it in place. This method is effective for both interior and exterior doors. Alternatively, you can use an H-shaped metal piece, with one side secured to the door and a flat seal in the H-shaped groove. A belcrank or double steel rod and chain can be used to ensure the gap remains closed.

Astragals: A Common Solution for Gap Fix

The typical method for closing a gap between double doors is to use an astragal, which is a piece of trim affixed to the inactive door that the active door can close tightly against. An astragal provides a tight seal and enhances the security of the doors. Depending on the direction the doors swing, the astragal can be attached to either door leaf. If both doors are used equally, inserts with brush-type weatherstripping can be used instead. These inserts can be installed on the outside of the door with a narrow strip of wood finish nailed to cover the gap.

Weather Stripping Options

If the gap is significant and you want to seal it properly, consider installing weather stripping. For interior doors, a narrow strip of self-adhesive weather stripping can be applied over the gap, covering it effectively. If you need to keep the doors open to use the knobs, you can install a modesty strip, which is a narrow strip of wood finish nailed to the outside of the door that covers the gap. Additionally, if you want to ensure the best seal, closing both doors simultaneously is necessary to prevent the weather stripping from being scraped off.

Conclusion

Fixing a gap between double doors is a practical and aesthetic necessity. Whether you opt for adjusting the pivot points, integrating a metal seal with rubber, or installing an astragal, there are several effective solutions available. Proper sealing not only enhances energy efficiency but also ensures security and comfort in your home or establishment.