If you have a wooden door and it's just starting to warp, there's probably something in the way which is stopping the wood from being straight. It could be that the door has been left open for too long or something was built next to it, so it's not resting on flat ground properly. Whatever it is, if this becomes a problem then you could try using metal corner braces to stop them warping further
You can buy these at any hardware store and they will usually come in sets of three. You'll need one for each corner of the frame and one for each side of the frame
The idea behind this is that they provide extra support by keeping the frame straight while allowing some movement on an angle as well as reducing any distortion in width/length as well as increasing stability overall.
bi fold door corner brace whiteThe load bearing capacity is up to 400kg per panel, which will satisfy the demand for larger opening space, and offer superior visual enjoyment. Any arrangements of opening ways are available for products less than 6 panels, which meets the needs of custom design.
Hold handle down:Sliding doors sit on rails to hold the doors in place Pull the hand up:Sliding doors create a distance from the track, allowing for smoother sliding
Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.
Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.
Doorwin is the manufacturer of full custom fenestration systems, and we're here for you. We provide you with the freedom to design your windows, doors, and more with no additional charge for special shapes, hardware styles, and color choices. Your vision is our inspiration; our job is to make it a reality.
Our products are made to pass your local inspector's verification and are built under USA building codes so you can rest assured that they are safe and sturdy. Choose Doorwin to experience the best bespoke fenestration service available today!
We take care of the entire process for you, from beginning to end. We have our own expertise and will provide free-charge design development & contract documentation with CAD and BIM drawings. In addition to elevation details and installation design, we will double-check that the products match the drawings and project specifications through video or pictures. We'll help you specify the delivery schedule and logistics service whilst keeping costs to a minimum.
We're proud to be one of the top exporters of windows and doors to the United States. We pack each window individually and in four layers, and finally into wooden boxes with non-fumigation, and at the same time, there will be a lot of shockproof measures in the container to protect your items. We ensure that your products will arrive at the sites in good condition after long-distance transportation.
Doorwin has been exporting tens of millions of dollars of windows and doors to the U.S. every year, and we know that improper packaging can cause breakage of the product when it arrives on site. What the client concerns, we concern most.
We are tested by the following standards:
-NFRC (North American Fenestration Rating Council)
-AAMA (American Architectural Manufacturers Association)
-WNMA (Wood National Monument Association)
-CSA101 (Canadian Standards Association)
-I.S.2 (International Standard ISO/IEC 17025)
-A440-11 (Standard for Fire Testing of Door Assemblies for Charging Rooms)
Awning Windows
Bay & Bow Windows
Casement Windows
Creak Out Casement Windows
Specialty Shape Windows
Picture Windows
Single Double Hung Windows
Tilt & Turn Windows
Sliding Windows
Bi-Fold Windows
Gliding Patio Doors
Bi-Fold Doors
Lift and Slide 
Entry Doors
Swinging Doors
Pivot Doors
Garage Doors
Interior Doors
