Is rebar caps profitable to sell on Amazon United States?

The niche generates $162K/yr across 23 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +40.6%. Flapen's verdict: Worth a look (62/100).

How competitive is the rebar caps niche?

17 brands and 22 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in rebar caps?

Top complaints mined from reviews: Size-Overall, Material Quality, Certifications. The return rate is 1.8%.

When does demand for rebar caps peak?

Demand peaks in May–Jun; the busiest month runs 2.0× the quietest.

What does it cost to enter the rebar caps niche?

Listings span $6.67–$139.37; the average listing price is $41.91 (sweet spot $15–$100). The average incumbent carries 66 reviews — the moat a new listing must climb.

rebar caps

Worth a look

Shows a thin review moat (66 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Review moat

Incredible66.22

avg incumbent reviews — the moat a new listing must climb

Avg price

Incredible$41.91

avg listing price — sweet spot $15–$100

Conversion

Great9.3%

search→purchase rate — share of searches ending in a sale

Returns

Great1.8%

return rate — above 5% kills the launch gate

Price range

Good$6.67–$139.37

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+40.6%

90-day search growth — must beat 0% to launch

Brand share

Good70%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay58%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$162K

$162K/yr · 42K searches

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, rebar caps is a $162K/yr Amazon United States market (42K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 62/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

rebar caps market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: $210K–$251K; units × avg price
Conversion rate: 9.3%
Avg BSR: #672
Page quality: 0%
Prime: 87%
Sponsored: 74%
Out of stock: 9.6%
Avg brand age: 44 months
Avg seller age: 191 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 flat

Sellers

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

58%

Top 20: 97%

Open market

25%

JCBIZ27%
Plutreas13%
Sandbaggy12%
Sukh11%
Fieaheily7%
MYCS5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +40.6% search growth over the last 90 days.

Peak months: May, Jun · busiest ÷ quietest = 2.0×

Open Trend

Top rebar caps search terms

rebar caps31K/yr +36.0%8.5% conv.
rebar cap6K/yr +63.7%5.6% conv.
rebar safety caps5K/yr +40.0%7.6% conv.

All search terms

Top rebar caps 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

JCBIZ 12PCS Plastic Reinforced Protective Cap Orange Safety Mushroom Survey Rebar Cap for Diameter 10-25mm Reinforcement

JCBIZ$9.934.6★89 rev

Sandbaggy OSHA Approved Rebar Safety Caps (Made in The USA) | Fall & Impalement Protection | Rebar #3 - #8 | T-Post Caps | Orange Plastic Construction Caps (1 Square - 4 x 4x 2.75)

Sandbaggy$18.484.5★17 rev

Plutreas Rebar Caps Orange Mushroom Safety Caps Size #3-#7 10M - 25M (Set of 50)

Plutreas$19.544.6★61 rev

12PCS Green Plastic Mushroom Rebar Safety Caps Garden Safety Cane Caps Screw on Rebar Stakes for Garden Canes ID 16mm/0.63in

JCBIZ$7.834.2★28 rev

Sukh Rebar Caps - 60Pcs Orange Mushroom Safety Cover for T-Posts Building Construction Protection Stakes - Plastic End Caps Fit #3-#7 Stake Sizes

Sukh$17.224.3★163 rev

Newest

by launch date

Mushroom Rebar Cap Plastic Reinforced Protective Cap for Diameter 10-25mm Reinforcement (Set of 20)

Plutreas$9.907 rev

3mo ago

100 Pack Rebar Caps Construction Impalement Premium Safety Cap Fits #3 to #11 Rebar T-Post Caps Plastic Orange Square Type for Job Site Fall & Impalement Protection

KRGFD$128.980 rev

4mo ago

250 PCS Rebar Caps Replace for #3-#9

Noliven$67.521 rev

7mo ago

250 Pcs Rebar Caps Fits Stake Size #3 - #7 Rebar Safety Cap Mushroom Caps Plastic Rebars Safety Cap Orange

Generic$88.621 rev

8mo ago

Plutreas Rebar Caps Orange Mushroom Safety Caps Size #3-#7 10M - 25M (Set of 20)

Plutreas$10.9561 rev

9mo ago

What buyers say about rebar caps

What buyers praise and complain about, mined from review topics.

What buyers love

Advertised Vs Actual Product22%

“As advertised”

Brightness/Shine/Glow11%

“the bright caps remind me while mowing my grass”

Efficiency11%

“works well”

Drop/Impact Protection11%

“I feel a lot safer”

Certifications11%

“OSHA compliant”

Value For Money6%

“Affordable”

Size-Overall6%

“Good snug fit”

Grip6%

“I like that because it means it won't come off easily”

Safety Standards4%

“Safer and more convenient than using plastic bottles or anything else”

Strength4%

“Sturdy”

What buyers complain about

Size-Overall25%

“Larger than expected”

Material Quality20%

“Cheap plastic”

Certifications10%

“Not OSHA compliant”

Durability10%

“Fade quickly, break easily”

Color10%

“Color already starting to fade”

Advertised Vs Actual Product5%

“The picture of the item gives a false indication of the size of the item”

Strength5%

“Too brittle - breaks putting on rebar”

Comfort-Overall5%

“I wasn't super comfortable with rebar un-capped in the yard”

Flexibility5%

“do not flex”

Top return reasons

Size-Overall69%

Advertised Vs Actual Product18%

Certifications5%

Color2%

Compatibility-Overall2%

Value For Money1%

Material Quality1%

Functionality-Overall1%

Flexibility1%

Durability1%

Common questions

Is rebar caps profitable to sell on Amazon United States?: The niche generates $162K/yr across 23 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +40.6%. Flapen's verdict: Worth a look (62/100).
How competitive is the rebar caps niche?: 17 brands and 22 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in rebar caps?: Top complaints mined from reviews: Size-Overall, Material Quality, Certifications. The return rate is 1.8%.
When does demand for rebar caps peak?: Demand peaks in May–Jun; the busiest month runs 2.0× the quietest.
What does it cost to enter the rebar caps niche?: Listings span $6.67–$139.37; the average listing price is $41.91 (sweet spot $15–$100). The average incumbent carries 66 reviews — the moat a new listing must climb.