King Box Spring
MaybeShoppers spend an estimated $4.2M a year here. But demand is soft, at -4.4% this quarter, so King Box Spring is a Maybe.
- Flapen Score
- 57 / 100Top 16% of 11,240 Home & Kitchen niches · +8 vs the category median of 4957
- Market size
- $4.2M/yr1.7M searches / yr
- 90-day growth
- -4.4%search demand this quarter
- Competition
- 38%top-5 click share · 26 brands · 30 sellers
Flapen Score
King Box Spring against its category
The dotted line is the Home & Kitchen average. Past it, King Box Spring is stronger. Inside it, weaker.
Market
The King Box Spring market on Amazon at a glance
Shoppers on Amazon United States searched for King Box Spring 1.7M times last year and spent an estimated $4.2M. The top 5 brands take 63% of clicks. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 2.6% of those searches ended in a purchase.
Shoppers searched for this 1.7M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.6% of those searches ended in a purchase. Searches in the last 90 days moved -4.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $4.2M a year.
- Searches, last 12 months
- 1.7M
- Growth, 90 days vs prior 90
- -4.4%
- Conversion, latest week
- 2.6%
- Market size, estimated
- $4.2Ma year
- Peak month
- March1.2× the quietest month
- Top search term
- king box spring505K searches a year
02 · Price
A sale here is worth $95.07.
Listings sell for $95.07 on average, from $53.28 to $241.85. Amazon reports units sold in ranges. This niche sold 40K to 50K a year. The average listing sells 1,250 to 1,500 of them. At $95.07 that is $119K to $143K a year per listing.
- Average price
- $95.07inside the $15 to $100 sweet spot
- Price range
- $53.28–$241.85
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 40K–50K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- $119K–$143K
- Returns
- 3.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
96% of listings pay for placement with sponsored ads. 87% ship with Prime. On an average day, 0.4% of listings are out of stock. The average listing ranks #28 within Mattresses & Box Springs. It carries 6,258 reviews at 4.33 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 96%
- Prime listings
- 87%
- Out of stock, average day
- 0.4%
- Average rank
- #28in Mattresses & Box Springs
- Average rating
- 4.33 starsAmazon United States average 4.42 stars
- Average reviews
- 6,258per listing
- Listings tracked
- 46
04 · Newcomers
18 of last year's 20 launches cleared the first-year sales bar.
20 products launched here in the last 12 months. 18 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 28 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 20
- Successful launches
- 18Amazon's first-year sales bar
- Average brand age
- 28 months
Products
Top King Box Spring products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 30, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Amazon Basics Smart Box Spring Bed Base 7-Inch Height Mattress Foundation Tool-Free Easy Assembly King Size Bed Sturdy Support Durable Construction 79 x 75.5 x 7 White
- Price
- $130.20
- Rating
- 4.5/5
- Reviews
- 38,479
- Age
- 6y ago

ALDRICH Box Springs King Size 9 Inch Heavy Duty Metal Frame Mattress Foundation with Easy Clean Cover Noise Free Easy Assembly
- Price
- $102.58
- Rating
- 4.2/5
- Reviews
- 3,663
- Age
- 2y ago

TROZULER 7 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity High Profile Noise-Free Easy Assembly with Fabric Cover
- Price
- $61.80
- Rating
- 4.3/5
- Reviews
- 2,132
- Age
- 9mo ago

Amazon Basics Smart Box Spring Bed Base 5-Inch Height Mattress Foundation Tool-Free Easy Assembly King 79 x 75.5 x 5 White
- Price
- $125.88
- Rating
- 4.5/5
- Reviews
- 38,479
- Age
- 7y ago

TROZULER 9 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity High Profile Noise-Free Easy Assembly with Fabric Cover
- Price
- $68.92
- Rating
- 4.3/5
- Reviews
- 2,132
- Age
- 9mo ago
Trending
estimated 90-day click momentum
GRUSIGN 7 Inch Box Spring for King Bed Quick Assembly King Size Metal Mattress Foundation with Fabric Cover Quiet Easy Assembly Strong Steel Frame Heavy Duty Low Profile Bed Frame Base King
- Price
- $68.24
- Rating
- 4.3/5
- Reviews
- 463
- Age
- 2mo ago

DORITRON 9 Inch King Box Spring 3000lbs Heavy Duty Box Spring King Size Bed Base Metal Mattress Foundation Easy Assembly Noise Free
- Price
- $91.58
- Rating
- 4.4/5
- Reviews
- 166
- Age
- 7mo ago

YORMDMO King Size Box Spring 7 Inch Mid Profile Box Springs with Washable Cover Heavy Duty Metal Mattress Foundations Easy Assembly 3000 lbs Capacity
- Price
- $74.53
- Rating
- 4.3/5
- Reviews
- 164
- Age
- 1y ago

ZASHONT 9 Inch Box Spring for King Bed - Heavy Duty Metal Mattress Foundation with Fabric Cover 3000 lbs Capacity High Profile King Box Spring Only Noise Free Easy Assembly
- Price
- $96.05
- Rating
- 4.1/5
- Reviews
- 169
- Age
- 7mo ago

TROZULER 9 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity High Profile Noise-Free Easy Assembly with Fabric Cover
- Price
- $68.92
- Rating
- 4.3/5
- Reviews
- 2,132
- Age
- 9mo ago
Newest
by launch date
GRUSIGN 7 Inch Box Spring for King Bed Quick Assembly King Size Metal Mattress Foundation with Fabric Cover Quiet Easy Assembly Strong Steel Frame Heavy Duty Low Profile Bed Frame Base King
- Price
- $68.24
- Rating
- 4.3/5
- Reviews
- 463
- Age
- 2mo ago

DORITRON 9 Inch King Box Spring 3000lbs Heavy Duty Box Spring King Size Bed Base Metal Mattress Foundation Easy Assembly Noise Free
- Price
- $91.58
- Rating
- 4.4/5
- Reviews
- 166
- Age
- 7mo ago

ZASHONT 9 Inch Box Spring for King Bed - Heavy Duty Metal Mattress Foundation with Fabric Cover 3000 lbs Capacity High Profile King Box Spring Only Noise Free Easy Assembly
- Price
- $96.05
- Rating
- 4.1/5
- Reviews
- 169
- Age
- 7mo ago

Cecimia 9 Inch King Box Spring Metal Heavy Duty Mattress Foundation with Fabric Cover Easy Assembly Bed Base
- Price
- $78.27
- Rating
- 4.5/5
- Reviews
- 244
- Age
- 8mo ago

10 Inch King Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs
- Price
- $108.09
- Rating
- 4.4/5
- Reviews
- 116
- Age
- 8mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 38% of clicks, no more. An open shelf where new products get seen.
Brands
26 rising
Sellers
30
Est. top-5 brand share
63%
Top 20: 96%
Est. top-5 click share
38%
Top 20: 79%
Open market
33%
- Amazon Basics21%
- TROZULER18%
- ALDRICH14%
- SHLAND5%
- DORITRON4%
- MAF4%
Demand
King Box Spring search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.2×
Search terms
Top King Box Spring search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- king box spring505K/yr
- king size box spring370K/yr
- box spring king351K/yr
- king size box spring only149K/yr
- box spring king size38K/yr
- king bed box spring39K/yr
- box spring for king bed30K/yr
- king boxspring27K/yr
- box springs king16K/yr
- king box springs18K/yr
Reviews and returns
What reviews say buyers love and hate about King Box Spring
We read the reviews and the return reasons for every product selling here.
“Its thick”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common King Box Spring questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









