Is boxes for posting profitable to sell on Amazon United Kingdom?

The niche generates £50K/yr across 18 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -17.9%. Flapen's verdict: Skip it (39/100).

How competitive is the boxes for posting niche?

13 brands and 22 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in boxes for posting?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Strength. The return rate is 0.4%.

When does demand for boxes for posting peak?

Demand peaks in Sep–Nov; the busiest month runs 1.7× the quietest.

What does it cost to enter the boxes for posting niche?

Listings span £4.01–£17.31; the average listing price is £8.93 (sweet spot $15–$100). The average incumbent carries 710 reviews — the moat a new listing must climb.

boxes for posting

Skip it

A small market ($50K/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Review moat

Good710

avg incumbent reviews — the moat a new listing must climb

Conversion

Good4.8%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay82%

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

Competition

Okay65%

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

Avg price

Okay£8.93

avg listing price — sweet spot $15–$100

Price range

Bad£4.01–£17.31

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

Growth

Bad-17.9%

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

Market size

Bad£50K

£50K/yr · 116K searches

According to Flapen's Amazon United Kingdom niche tracking, boxes for posting is a £50K/yr Amazon United Kingdom market (116K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Sep–Nov. Verdict: Skip it — 39/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

boxes for posting market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: £45K–£54K; units × avg price
Conversion rate: 4.8%
Avg BSR: #95
Page quality: 0%
Prime: 72%
Sponsored: 72%
Out of stock: 2.4%
Avg brand age: 40 months
Avg seller age: 188 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

14%

Triplast44%
Trendecor14%
STRBOXONG12%
All-Pack Solutions7%
Apex Business Supplies5%
HORLIMER4%
Open — no brand owns it (7 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.9% search growth over the last 90 days.

Peak months: Sep, Nov · busiest ÷ quietest = 1.7×

Open Trend

Top boxes for posting 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★)

All 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Triplast 203 x 152 x 152mm Small Single Wall 8x6x6 Shipping Mailing Postal Gift Cuboid Cardboard Boxes (Pack of 5)

Triplast£4.014.5★511 rev

Corrugated Cardboard Shipping Boxes 15x10x5cm Royal Mail Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)

STRBOXONG£8.294.6★851 rev

Small Cardboard Boxes Brown Corrugated Shipping Boxes 7.3x5 x1.8 Inches (18.5x12.5x4.5 cm) Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)

Trendecor£7.564.1★30 rev

Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 10)

Triplast£5.164.4★3,179 rev

Triplast 203 x 152 x 102mm Small Single Wall 8x6x4 Shipping Mailing Postal Gift Cuboid Cardboard Boxes (Pack of 25)

Triplast£7.574.6★1,744 rev

Newest

by launch date

25 Boxes of 8x6x4 Inch Small Cardboard Boxes Pack of 25 | Single Wall Shipping Boxes Mailing & Postal Boxes | Strong Corrugated Packing Boxes for Moving Storage Royal Mail Small Parcel

Apex Business Supplies£8.2016 rev

2mo ago

Small Cardboard Boxes White Corrugated Shipping Boxes 7.1 x 4.3 x1.9 Inches (18 x11 x5 cm) Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)

Trendecor£7.505 rev

7mo ago

Small Cardboard Boxes Brown Corrugated Shipping Boxes 7.3x5 x1.8 Inches (18.5x12.5x4.5 cm) Small Parcel Boxes Packaging Mailing Boxes for Business Posting Storing or Gift(Pack of 10)

Trendecor£7.5630 rev

1y ago

HORLIMER 6 Pack Shipping Boxes 152x100x76 mm (6x4x3 inch) Brown Corrugated Cardboard Boxes for Small Item Packaging Secure Storage and Business

HORLIMER£7.67445 rev

1y ago

Triplast Ecommerce Crash Lock Boxes with Peel & Seal Strips - Pack of 5 x ECOM02 (200x100x100mm) - Easy to Assemble Quick Seal Strong Cardboard Postal Box Mailers for Packing & Shipping Small Parcels

Triplast£6.4657 rev

1y ago

What buyers say about boxes for posting

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

What buyers love

Value For Money19%

“Good price”

Quality-Overall16%

“Excellent quality boxes”

Size-Overall14%

“There good size”

Advertised Vs Actual Product12%

“As described”

Assembly/Installation10%

“Easy assembly”

Strength9%

“Well made and sturdy”

Ease Of Use4%

“Easy to use”

Thickness2%

“The thickness of the cardboard is good”

Correct Contents2%

“Great Little Boxes”

Weight Light2%

“These are pretty lightweight”

What buyers complain about

Quality-Overall25%

“boxes are bad quality”

Size-Overall23%

“Size listing is incorrect”

Strength20%

“Very flimsy”

Adhesion/Stickiness6%

“They don't even close properly or line up to tape up”

Advertised Vs Actual Product6%

“Size listing is incorrect”

Thin3%

“Very thin”

Assembly/Installation2%

“Poorly put together needed half a roll of tape to keep it together”

Value For Money2%

“Not worth the low price”

Thickness1%

“a bit thin”

Cutting/Trimming1%

“not very square cut”

Top return reasons

Size-Overall86%

Strength3%

Thin2%

Quality-Overall2%

Advertised Vs Actual Product2%

Defective Material/Parts1%

Moist/Dry1%

Value For Money1%

Ease Of Use0%

Functionality-Overall0%

Common questions

Is boxes for posting profitable to sell on Amazon United Kingdom?: The niche generates £50K/yr across 18 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -17.9%. Flapen's verdict: Skip it (39/100).
How competitive is the boxes for posting niche?: 13 brands and 22 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in boxes for posting?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Strength. The return rate is 0.4%.
When does demand for boxes for posting peak?: Demand peaks in Sep–Nov; the busiest month runs 1.7× the quietest.
What does it cost to enter the boxes for posting niche?: Listings span £4.01–£17.31; the average listing price is £8.93 (sweet spot $15–$100). The average incumbent carries 710 reviews — the moat a new listing must climb.

boxes for posting

boxes for posting market data

Competition & brand share

Demand & seasonality

Top boxes for posting search terms