A door with 28x80 size (2'4" x 6'8") is a pre-designed standard sized door, which stands for 28 inches wide and 80 inches high for rough opening and the door size is 1/4 or 1/2 smaller than the rough opening, which should be 27.75x79.75 or 27.5x79.5 for the real door slab / frame size. Doors of 28x80 are commonly seen standard sized doors, which fit most of the openings. Standard sized doors are usually cheaper than customized doors, as suppliers could be easier to manufacture and store.

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A Slab Door is one rectangular door slab only of wood, no frame, no hinges and no hardware. While a pre-hung door means a slab + frame + hinges + hardware, all you need is a rough opening(RO - a hole in a framed wall for the door). If your current door frame is warped or damaged or you are installing an exterior door, prehung is our highly recommended than a slab.

Primed door means the door has been primed before it leaves the factory. Pre-primed door a balanced choice of prefinished and unfinished and you can paint it in your desired colour without having to sand and prime yourself.

Yes, flush or panel styles.

China WDMA tries to provide the most cost efficient pricing to our clients as we have cooperate with over 20 different scales of factories and we provide the Best Price Guarantee to you.
A 28x80 door equals to 1.445248 square meters.

However, the final pricing depends on the specification on door frame, glass and hardware options and others. To caculate your own price, please Request a Free Quote.

Warren 32in Bifold Door 28x80 Bifold Doors Bifold Doors 24x80 Glass Folding Patio Modern Spec Sheet

Warren 32in Bifold Door

Bi-fold patio doors consist of two or more glass door panels that hinge together to open accordion-style, creating wide open spaces. This door type provides more flexibility to enjoy your outdoor entertaining areas. Bi-fold patio doors conveniently fold up to create a wide opening between the inside and out. When closed, bi-fold patio doors create a virtual wall of glass that lets in a large amount of natural light. When open, the door panels fold neatly and store indoors or outdoors to expand your livable space into the outdoors — great for entertaining.

The standard glass of the Warren Bi-folding door is fully tempered low-e double glass, which prevents radiation and UV. Warren windows provide the energy-efficient solution for your home to keep warm in winter and cool in summer, making your life comfortable! All the glass has passed IGCC Certificate and SGCC Certificate.

Since its founding in 2012 by the name of "Guardian" WARREN has built 150000 square meters of intelligent R&D and exhibition bases in Beijing, Shandong, and Guangdong with a national standard testing center. We have invested heavily in the introduction of 6 German Elumatec Automatic Processing lines to make the manufacturing more precise and effective products have passed the NAFS Certificates, and the annual production capacity of doors and windows can reach more than 1 million square meters at the same time Warren also exported Chinesesmart products overseas, occupying the high ground of export trade.

In 2021 Warren collaborated with designer WeiyanShao in Taiwan to create a new China chic space, in-fusing doors and windows with new vitality through color. At present, Warren has over 400 flagship stores in China, "guarding" every moment of quality life with high-quality products and sincere services, so that high-quality life can be shared globally.

RFQ

1. Q: Who is Warren? What are your main products?
A: Warren is one of the biggest windows manufacturers in China, specializing in high-end aluminum windows & doors.

2. Q: Do you have any certifications?
A: Yes. We have NAFS/NAMI/NFRC/CSA certifications. Our products can meet North American standards.

3. Q: How long will it take for production?
A: It will take around four weeks after receiving your down payment.

4. Q: What is your delivery time?
A: 16 days to LA, 26 days to NY, 28 days to Houston. And 30-40 days to other cities in North America.

5. Q: What is your warranty?
A: Products covered by Limited Lifetime Warranty(LLW).

6. Q: How to install your windows and doors?
A: Our products meet American window and door installation standards, and you can find local installers. We provide installation
manuals, videos, and online help.

7. Q: Can you help me to do all the paperwork in the destination port?
A: Yes. We can do the ISF, the customs clearance service, and all the other paperwork for you.

8. Q: Do you provide Door-to-Door Shipping?
A: Yes. We can arrange trucking delivery to the recipient's door.

9. Q: How much is the import duty?
A: The import duty is different for different products. Roughly the import duty is lower than the consumption tax.

10. Q: What are your payment terms?
A: We support wire transfers of 50% of the total amount as a deposit and balance before delivery. Irrevocable L/C at sight is also
acceptable.

If you want to know more about Warren 32in Bifold Door 28x80 Bifold Doors Bifold Doors 24x80 Glass Folding Patio Modern, please feel free to contact us!

Warren 32in Bifold Door 28x80 Bifold Doors Bifold Doors 24x80 Glass Folding Patio Modern Spec Sheet

Warren 32in Bifold Door

Bi-fold patio doors consist of two or more glass door panels that hinge together to open accordion-style, creating wide open spaces. This door type provides more flexibility to enjoy your outdoor entertaining areas. Bi-fold patio doors conveniently fold up to create a wide opening between the inside and out. When closed, bi-fold patio doors create a virtual wall of glass that lets in a large amount of natural light. When open, the door panels fold neatly and store indoors or outdoors to expand your livable space into the outdoors — great for entertaining.

The standard glass of the Warren Bi-folding door is fully tempered low-e double glass, which prevents radiation and UV. Warren windows provide the energy-efficient solution for your home to keep warm in winter and cool in summer, making your life comfortable! All the glass has passed IGCC Certificate and SGCC Certificate.

Since its founding in 2012 by the name of "Guardian" WARREN has built 150000 square meters of intelligent R&D and exhibition bases in Beijing, Shandong, and Guangdong with a national standard testing center. We have invested heavily in the introduction of 6 German Elumatec Automatic Processing lines to make the manufacturing more precise and effective products have passed the NAFS Certificates, and the annual production capacity of doors and windows can reach more than 1 million square meters at the same time Warren also exported Chinesesmart products overseas, occupying the high ground of export trade.

In 2021 Warren collaborated with designer WeiyanShao in Taiwan to create a new China chic space, in-fusing doors and windows with new vitality through color. At present, Warren has over 400 flagship stores in China, "guarding" every moment of quality life with high-quality products and sincere services, so that high-quality life can be shared globally.

RFQ

1. Q: Who is Warren? What are your main products?
A: Warren is one of the biggest windows manufacturers in China, specializing in high-end aluminum windows & doors.

2. Q: Do you have any certifications?
A: Yes. We have NAFS/NAMI/NFRC/CSA certifications. Our products can meet North American standards.

3. Q: How long will it take for production?
A: It will take around four weeks after receiving your down payment.

4. Q: What is your delivery time?
A: 16 days to LA, 26 days to NY, 28 days to Houston. And 30-40 days to other cities in North America.

5. Q: What is your warranty?
A: Products covered by Limited Lifetime Warranty(LLW).

6. Q: How to install your windows and doors?
A: Our products meet American window and door installation standards, and you can find local installers. We provide installation
manuals, videos, and online help.

7. Q: Can you help me to do all the paperwork in the destination port?
A: Yes. We can do the ISF, the customs clearance service, and all the other paperwork for you.

8. Q: Do you provide Door-to-Door Shipping?
A: Yes. We can arrange trucking delivery to the recipient's door.

9. Q: How much is the import duty?
A: The import duty is different for different products. Roughly the import duty is lower than the consumption tax.

10. Q: What are your payment terms?
A: We support wire transfers of 50% of the total amount as a deposit and balance before delivery. Irrevocable L/C at sight is also
acceptable.

If you want to know more about Warren 32in Bifold Door 28x80 Bifold Doors Bifold Doors 24x80 Glass Folding Patio Modern, please feel free to contact us!