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Q1:  What is an STC rating?

A:  STC (Sound Transmission Class) are measurements of a door's ability to reduce airborne noise. Higher STC values represent better reduction of noise.

Q2: Do willsun doors meet any ‘green’ certifications?

A: At this time, there is no clear definition of ‘green.’ However, there are many different associations that are attempting to develop ‘green’ standards. willsun doors can be configured to meet specific “green” characteristics. The appropriate products will be determined by the properties you are attempting to attain.

Q3: Does willsun door  make fire-rated doors? If so, how do I determine the fire rating on the door?

A: willsun door makes a wide variety of  interior doors that are available with a 20-minute fire rating. Several interior doors are also available with a fire rating of 45-, 60- or 90-minutes in duration. we  ensure that the configuration you have chosen will meet your specific fire door application. 

Q4: Are Wood Panel doors solid wood? If not, how are they constructed and from what materials?

A: Wood Panel doors have a solid construction. However, they are engineered from various materials for best performance. Different price represent different quality , we will let you know what you buy clearly .

Q5: Is the finished opening for a solid core bifold door the same as a hollow core door?

A: Yes,  The bifold length will be adjusted at our manufacturing plant to accommodate a different sized, heavy duty track. 

Q6: What is the DP (design pressure) rating on your door panels?

A: Doors, by themselves, cannot be design pressure rated. Only complete assembled and framed door units or door systems are rated.