stair stringer
Skip itA small market ($36K/yr) — this niche doesn't clear our bar today.
Review moat
Great264.98avg incumbent reviews — the moat a new listing must climb
Avg price
Great$78.88avg listing price — sweet spot $15–$100
Competition
Great33%top-5 click share — an open shelf
Growth
Good+49.5%90-day search growth — must beat 0% to launch
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Price range
Okay$14.29–$228.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay4.0%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Bad0.9%search→purchase rate — share of searches ending in a sale
Market size
Bad$36K$36K/yr · 48K searches
According to Flapen's Amazon United States niche tracking, stair stringer is a $36K/yr Amazon United States market (48K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
stair stringer market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $39K–$59K
- units × avg price
- Conversion rate
- 0.9%
- Avg BSR
- #455
- Page quality
- 0%
- Prime
- 85%
- Sponsored
- 85%
- Out of stock
- 27.6%
- Avg brand age
- 42 months
- Avg seller age
- 212 days
Competition & brand share
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.Brands
22 falling
Sellers
38
Top-5 brand share
79%
Top 20: 99%
Top-5 click share
33%
Top 20: 71%
Open market
18%
- Toriexon34%
- MTB Supply17%
- yeezoo13%
- DIYHD10%
- MTB Garden6%
- Zwinz3%
- Open — no brand owns it (16 brands, 18%)
Demand
Weekly Amazon search volume, last 9 weeks — +49.5% search growth over the last 90 days.Top stair stringer search terms
- stair stringer23K/yr
- stair stringers8K/yr
- metal stair stringer7K/yr
- steel stair stringer4K/yr
- 12 step stair stringers3K/yr
- pre cut stair stringers3K/yr
Top stair stringer products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Toriexon 3 Pack Steel Stair Step Riser 2-Step Metal Stair Stringer Heavy Duty Steel Stair Stringer for 20 Height Deck and Outdoor Steps
Toriexon$56.684.7★107 rev
DIYHD Outdoor Steel Stair Riser 10 Steps Black Stair Stringer for Deck Height 81in Powder Coated Black MAX Load Capacity:500lbs 2pcs
DIYHD$224.024.4★249 rev
Toriexon Steel Stair Step Riser-2 Pack 2 Step Stair Stringers for Deck
Toriexon$45.364.7★107 rev
Toriexon Steel Stair Step Riser 6-Step Metal Stair Stringer with Reinforcing Support Legs Heavy Duty Steel Stair Stringer for 50 Height Deck and Outdoor Steps (2 Pack)
Toriexon$103.144.2★25 rev
27 Inch Black Steel Stair Step Riser 3-Step Metal Stair Stringer 2 Pack Steel Stair Stringer for 27 Height Deck and Outdoor Steps
MTB Supply$47.614.7★1,603 rev
Newest
by launch date
Steel Stair Step Riser 5-Step 2 Pack Heavy Duty Stair Stringer with Reinforcing Support Legs Sturdy Metal Steel Stair Stringer for 42.5 Height Deck and Outdoor Steps Black
Toriexon$91.7510 rev
2 Packs Black Metal Stair Step Stringers 9-Step for Deck Height 72 Inches Stair Stringer for Outdoor Wooden Tread
MTB Garden$165.621 rev
Paifnpo 4 Step Metal Stair Stringers Stair Riser for Deck Height 24.8
Paifnpo$92.704 rev
Toriexon Steel Stair Step Riser 8-Step Metal Stair Stringer with Reinforcing Support Legs Heavy Duty Steel Stair Stringer for 65 Height Deck and Outdoor Steps (2 Pack)
Toriexon$146.494 rev
Zwinz Steel Stair Stringer 3 Step Metal Stair Stringers for Deck Height 27 inches Steel Stair Step Riser for Outside Stairs 3 Pack
Zwinz$74.33188 rev
Trending
90-day click momentum2 Packs Black Metal Stair Step Stringers 9-Step for Deck Height 72 Inches Stair Stringer for Outdoor Wooden Tread
MTB Garden$165.624.0★
Doniks Steel Stair Step Riser -6 Step for Deck Height 49.4 Inches Metal Stair Stringer Step Stringer Support Connector Frame Hanger Bracket
Doniks$90.524.6★
Paifnpo 4 Step Metal Stair Stringers Stair Riser for Deck Height 24.8
Paifnpo$92.704.3★
Steel Stair Step Riser 5-Step 2 Pack Heavy Duty Stair Stringer with Reinforcing Support Legs Sturdy Metal Steel Stair Stringer for 42.5 Height Deck and Outdoor Steps Black
Toriexon$91.754.8★
2 Packs Metal Stair Step Stringers 4 Step Steel Riser Stringer for 34.7inch Height Deck(Polished Black)
yeezoo$55.514.7★
What buyers say about stair stringer
What buyers praise and complain about, mined from review topics.What buyers love
“Sturdy, attractive, easy to install”
“They're very well made”
“They work as advertised”
“Easy to use affordable”
“Easy-to-use”
“High quality and durable”
“Very easy to assemble and install”
“Worked and fit perfectly”
“Very easy to create a set of steps”
“Great connector”
What buyers complain about
“Use bolts to secure the treads those screws they provide are a joke”
“Not up to Simpson quality material”
“Looks like this was a return”
“Not very heavy duty”
“that stiffened it up”
“very poor quality”
“Just a bit to long to use”
“when I went to install they didn't work out”
“I used this product to replace an old set of Bilco metal stringers which were thoroughly rusted through in my basement bulkhead area”
Top return reasons
Common questions
- Is stair stringer profitable to sell on Amazon United States?
- The niche generates $36K/yr across 59 tracked products. 1 of 11 products launched in the last 360 days are still selling. 90-day search growth is +49.5%. Flapen's verdict: Skip it (47/100).
- How competitive is the stair stringer niche?
- 22 brands and 38 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in stair stringer?
- Top complaints mined from reviews: Mounting, Material Quality, Product Condition. The return rate is 4.0%.
- What does it cost to enter the stair stringer niche?
- Listings span $14.29–$228.48; the average listing price is $78.88 (sweet spot $15–$100). The average incumbent carries 265 reviews — the moat a new listing must climb.