Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
Advertising Disclosure
8 Best zinus 9 inch metals of 2026
Explore top picks
Best Choice1
Zinus9.9Exceptional
Zinus 9 Inch Metal Smart Box Spring with Quick Assembly, California King
-
product dimensions:83 x 71.5 x 9 inches
-
care instructions:Wipe with Damp Cloth
-
item weight:48.9 pounds
-
assembly required:Yes
-
item model number:ZU-ABS-9CS
-
-
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
Trusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impact
Thousands of users trust our site daily- Based on millions of stores and reviews
- Shoppers influence our rankings
Value for Money2
Zinus9.8Exceptional
Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, King
-
product dimensions: 78.7 x 75.5 x 9 inches
-
care instructions:N/A
-
item weight: 39.6 pounds
-
assembly required:N/A
-
item model number: ZU-FBSSG1OC-09K
-
3
Zinus9.7Exceptional
Zinus 9 Inch Metal Smart Box Spring with Quick Assembly, Twin XL
-
product dimensions:78.7 x 38 x 9 inches
-
care instructions:Wipe with Damp Cloth
-
item weight:25.5 pounds
-
assembly required:Yes
-
item model number:ZU-ABS-9XS
-
4
Zinus9.5Excellent
ZINUS 9 Inch Box Spring with Cover, No Assembly Mattress Foundation, Sturdy Metal Structure, Split Queen, White
-
product dimensions:79 x 59.5 x 9 inches
-
care instructions:Spot Clean Only
-
item weight:48.8 pounds
-
assembly required:Yes
-
item model number:SM-SC-BIFD-9Q
-
5
Zinus9.2Excellent
ZINUS 9 Inch No Assembly Metal Box Spring, Cool Mattress Foundation, Sturdy Metal Structure, Split King, White
-
product dimensions:79L x 75.5W x 9H
-
care instructions:N/A
-
item weight:56.9 pounds
-
assembly required:Yes
-
item model number:SM-SC-BIFD-9SK
-
-
See Today’s Deals & Prices
6
Zinus9.0Excellent
Zinus Jayanna 9 Inch High Profile BiFold Box Spring / Folding Mattress Foundation / Strong Steel Structure / No Assembly Required, Full
-
product dimensions:74 x 53 x 9 inches
-
care instructions:Spot Clean Only
-
item weight:35.3 pounds
-
assembly required:Yes
-
item model number:SM-SC-BIFD-9F
-
7
Zinus8.8Very Good
Zinus SmartBase Tool-Free Assembly Mattress Foundation, 14 Inch Metal Platform Bed Frame, No Box Spring Needed, Sturdy Steel Frame, Underbed Storage, Black, Queen
-
8
Zinus8.7Very Good
Zinus 9 Inch Box Spring with Cover, No Assembly Mattress Foundation, Sturdy Metal Structure, Split Cal King, White
-
