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Oct 30, 2025 - 10:59 AM
View all Undermount Drawer Slides Questions & Answers
We’ve provided several answers to questions related to Blum 21" TANDEM EDGE 7/8 Extension Soft-Close Undermount Drawer Slide Blum 554H5330B01 , see some other helpful Q&A related to this product.
Question: What is the suitable drawer box thickness for this product?
Answer: The suitable drawer box thickness for blum tandem soft-close drawer slide kit is between 1/2" and 5/8". This range covers most standard drawer constructions, ensuring compatibility and ease of installation.
Question: What is the extension of the drawer slide?
Answer: The extension is 7/8. This means the blum soft close drawer slides extend nearly the full length of the slide, allowing easy access to items stored at the back of the drawer.
Question: are the locking devices necessary?
Answer: Yes they are in order to fasten the slide to the drawer box
Question: I have some large Drawers. will be around 60lbs when loaded. I am using blum 554H and they will not close the drawer empty The drawer size is 16Wx12Hx18D. Heavy with the decorative Drawer front. Can you recomend a stronger closing undermount?
Answer: The standard Tandem 563H series is 100lb load rated. SKU: 11198217
Question: Do they come with the locking device or brackets?
Answer: No. Locking devices, screws and brackets are all sold separately
Question: what size screws
Answer: These are designed for #6 x 5/8" flat head screws
