[Tool-Free Assembly in 8-10 Minutes]: This Floor Standing Tall Bookcase measures 37.4”W x 11.8”D x70.9”H. Adopting an interlocking buckle structure design,our sturdy book cases does not require screws and nuts. You can finish hassle-free assembly in just 8-10 minutes! We provide a clear instruction manual and installation video to guide you step by step. If you encounter any issues during assembly or use, please feel free to contact us and we will resolve all issues [Why Choose Metal Bookshelf Over Wood?]: The answer lies in its STURDY, DURABLE design and STRONG, STABLE structure! First, compared to wood, metal bookshelves and bookcases have greater load-bearing capacity: each shelf holds up to 280LBS, and a 5-tier one has a total load capacity of 1400LBS. It’s perfect for heavy items like thick encyclopedias and hardcover books—no need to worry about shelves sagging or deforming. Second, the metal white book self’s surface is coated with durable electrostatic powder. Unlike wooden ones, it’s waterproof, rust-proof and scratch-resistant; you can clean and dry it as needed for extreme convenience [Stable & Safe Design for Families with Kids & Pets]:71”H tall bookcase comes with anti-slip pads to prevent floor scratches, and safe bookends keep books and items from falling off, while the thickened base boosts stability and load-bearing capacity. Heavy-Duty Bookshelf features a rounded curved frame with no sharp corners to avoid accidental bumps. Plus, our wide bookshelf includes an anti-tip device. This is especially family-friendly for those with pets or kids [5-Tier Adjustable Bookshelf for Flexible Storage]: 5 Shelf Bookcase, you can freely adjust the height of each tier by moving the shelves to fit different storage needs. You can even remove shelves to create extra tall space for oversize items (like large decor or tall books). Our modern book shelves is highly versatile for use in living room reading nooks, home studies, home offices, school libraries, classrooms, reading corners, and bookstores [Spacious & Multi-Scenario Use]：With its 70.9"H tall structure and 73"W wide shelves, this book cases offers ample storage space for your book collection, vinyl records, office files, decorative items, and more. Its sleek black finish complements any decor style, seamlessly blending into both home and commercial spaces—keeping your area organized while adding a clean, modern touch.Very suitable for use as library bookcase, office bookshelf, and home book cases, and more Tired of spending hours assembling bookshelves with messy screws, dealing with flimsy wooden units that sag under heavy books, or worrying about sharp edges harming your kids or pets? Our 5-Tier Metal Sturdy Bookshelf is here to solve all these frustrations—blending durability, safety, and convenience into a sleek, space-saving design that fits seamlessly in any home or commercial space! Measuring 11.8”D x 37.4”W x 70.9”H, this bookcase stands 70.9” tall to maximize vertical storage while maintaining a compact footprint, and its modern finish complements everything from minimalist living rooms to busy school libraries. What makes assembly a breeze? We’ve adopted an interlocking buckle structure so that you can have this floor-standing bookshelf fully set up in just 8-10 minutes, and we include a clear instruction manual plus an installation video to guide you every step of the way; if you hit any snags during assembly or use, our support team is ready to help resolve issues quickly.