Large Letter Postal Boxes
prices mostly outside the sweet spot ($4.56–$14.95) — Large Letter Postal Boxes doesn't clear our bar today.
Flapen Score
Is Large Letter Postal Boxes profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Large Letter Postal Boxes is a £42K/yr Amazon United Kingdom market (97K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 42/100.
Large Letter Postal Boxes: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -14.7% over the last 90 days and 5.0% of searches end in a purchase.
£42K
revenue / yr
Who owns the niche?
The top 5 brands hold 78% of demand, so 22% of the market is open.
22%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 27 products
Top Large Letter Postal Boxes products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 50)
- Price
- £8.91
- Rating
- 4.4/5
- Reviews
- 3,182
- Age
- 9y ago

AKAR Corrugated Manila Large Letter Postal Box C5 A5 PIP Boxes Royal Mail
- Price
- £7.73
- Rating
- 4.6/5
- Reviews
- 583
- Age
- 7y ago

100 x C5 A5 PIP Box Shipping Mail Postal Large Letter Boxes - Size: 235x165x22mm Sold by MEG4TEC
- Price
- £10.66
- Rating
- 4.3/5
- Reviews
- 452
- Age
- 11y ago

Generic 50 x C5 A5 PIP Box Shipping Mail Postal Large Letter Boxes - Size: 235x165x22mm Sold by MEG4TEC
- Price
- £7.26
- Rating
- 4.3/5
- Reviews
- 3,328
- Age
- 11y ago

Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 10)
- Price
- £5.18
- Rating
- 4.4/5
- Reviews
- 3,182
- Age
- 9y ago
Trending
90-day click momentum
C4 Large Letter Postal Boxes 100 Pack Strong Corrugated Cardboard Mailing Boxes PIP Large Letter Size Flat Packed Shipping Boxes for Documents E-commerce
- Price
- £14.95
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago

Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 10)
- Price
- £5.18
- Rating
- 4.4/5
- Reviews
- 3,182
- Age
- 9y ago

TGL PACKAGING C5 / A5 (218x159x20mm) Royal Mail Brown Large Letter Cardboard Postal Mailing PiP Boxes (10)
- Price
- £5.79
- Rating
- 4.6/5
- Reviews
- 231
- Age
- 4y ago

C6 A6 Postal Pip Boxes - Large Letter & Flat Pack Boxes Size 16.3cm x 11.2cm x 2cm - Pack of 25 (White)
- Price
- £8.20
- Rating
- 4.7/5
- Reviews
- 7
- Age
- 1y ago

C6 A6 PiP Shipping Mailing Postal Large Letter box 160 x 111 x 19mm (16 x 11 x 1.9 cm) - Eco-Friendly and 100% Recyclable. (50)
- Price
- £8.49
- Rating
- 4.6/5
- Reviews
- 63
- Age
- 4y ago
Newest
by launch date
C4 Large Letter Postal Boxes 100 Pack Strong Corrugated Cardboard Mailing Boxes PIP Large Letter Size Flat Packed Shipping Boxes for Documents E-commerce
- Price
- £14.95
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago

C6 A6 Postal Pip Boxes - Large Letter & Flat Pack Boxes Size 16.3cm x 11.2cm x 2cm - Pack of 25 (White)
- Price
- £8.20
- Rating
- 4.7/5
- Reviews
- 7
- Age
- 1y ago

iDEALS UK PACKAGING LTD PINK C5 A5 size box large letter cardboard shipping mailing postal PIP. Internal size: 23cm x 16cm x 2cm (25)
- Price
- £10.71
- Rating
- 4.7/5
- Reviews
- 32
- Age
- 2y ago

C6 A6 PiP Shipping Mailing Postal Large Letter box 160 x 111 x 19mm (16 x 11 x 1.9 cm) - Eco-Friendly and 100% Recyclable. (50)
- Price
- £8.49
- Rating
- 4.6/5
- Reviews
- 63
- Age
- 4y ago

C6 A6 PiP Shipping Mailing Postal Large Letter box 160 x 111 x 19mm (16 x 11 x 1.9 cm) - Eco-Friendly and 100% Recyclable. (100)
- Price
- £13.04
- Rating
- 4.6/5
- Reviews
- 63
- Age
- 4y ago
Competition: brands, sellers & click share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.
Brands
11 falling
Sellers
25
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
52%
Top 20: 93%
Open market
15%
- AKAR28%
- Triplast23%
- Generic12%
- Parcel Pack9%
- STRBOXONG7%
- MEG4TEC6%
- Open — no brand owns it (5 brands, 15%)
Large Letter Postal Boxes demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Nov, Dec · busiest ÷ quietest = 2.0×
Top Large Letter Postal Boxes search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- large letter postal boxes28K/yr
- letterbox boxes16K/yr
- large letter boxes11K/yr
- c6 postal boxes7K/yr
- c5 postal boxes8K/yr
- large letter box7K/yr
- letter box boxes6K/yr
- pip boxes4K/yr
- cardboard letter box3K/yr
- a5 postal boxes3K/yr
What reviews say buyers love and hate about Large Letter Postal Boxes
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“perfect size”
“Excellent product”
“Great value”
“Very sturdy”
“Works as advertised”
What buyers complain about
82% of reviews“Bad quality”
“they are flimsy”
“Thin”
“dont assemble well”
“Overall I doubt its fit for the intended purpose”
Large Letter Postal Boxes return rate & reasons
Why buyers send it back, as a share of all return requests.
0.5%
Return rate
76%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Large Letter Postal Boxes questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









