Latest Fire Door and Soundproof Door Insights from Qi An News & Blogs

Master commercial steel door installation with this technical guide. Learn precise frame setting, anchoring, and code compliance for long-term security.

Learn how to specify custom stainless steel fire rated doors without violating codes. This guide covers size limits, core types, and UL certification.

Understand fire-rated metal door pricing. Learn how material, assembly, and ratings impact cost and compliance for facility safety.

Get accurate steel door cost breakdowns. From $1,000 to $5,000+, understand how gauge, fire ratings, hardware, and labor impact your total budget.

Selecting the correct interior wooden doors is not only a design decision. For hotels, apartments, offices, schools, healthcare spaces, and public buildings, door size affects installation accuracy, acoustic comfort, fire safety planning, hardware compatibility, and project delivery efficiency. A small sizing error can delay site installation, create inconsistent wall openings, increase labor costs, and cause problems with door schedules across multiple floors.

When you clean your doors, you want them to look nice. You do not want to harm the finish. For wood doors, gentle cleaning is best. Use a soft cloth with mild soap or some diluted vinegar. Do not use harsh chemicals. They can hurt the color and surface. Some finishes, like satin and semi-gloss, react in different ways when cleaned: