18×12×3 inch (455×305×75mm) cardboard boxes: from 61.5p each

The cheapest we found for 18×12×3 inch (455×305×75mm) cardboard boxes is 61.5p per box: 200 boxes for £122.96 delivered (single wall · standard box). Prices for this size run from 61.5p to £1.69 per box, depending on the pack size and the type of box. For a smaller order, the best price in a pack costing £50 or less is 67.9p per box (25 boxes for £16.97 delivered). Prices updated 17 October 2026.

Price per box by pack size

Darker green means better value. Hover over a price to see the total, or click it for the listing on eBay.Darker green means better value. Tap a price to see the total and the listing on eBay.

Type	5 boxes	10 boxes	20 boxes	25 boxes	50 boxes	100 boxes	200 boxes	500 boxes
single wall · standard box	£1.69	£1.20	94.9p	67.9p	77.8p	67.9p	61.5p	72.5p
single wall · postal / die-cut	–	–	–	90.8p	73.0p	70.0p	–	–

Pack	Single wall	Single wall die-cut
5 boxes	£1.69£8.47	–
10 boxes	£1.20£12.00	–
20 boxes	94.9p£18.99	–
25 boxes	67.9p£16.97	90.8p£22.69
50 boxes	77.8p£38.90	73.0p£36.48
100 boxes	67.9p£67.91	70.0p£69.95
200 boxes	61.5p£122.96	–
500 boxes	72.5p£362.47	–

Prices include delivery and can change, so check the price on eBay before you buy. How it works.

Buy more, pay less: price per box by pack size

Every price includes delivery. The green row is the lowest price per box for that type. Click a total to see the listing on eBay.

Single wall · standard box

from 61.5p each (200 boxes)

Pack	Total	Each
5 boxes	£8.47	£1.69
10 boxes	£12.00	£1.20
20 boxes	£18.99	94.9p
25 boxes	£16.97	67.9p
50 boxes	£38.90	77.8p
100 boxes	£67.91	67.9p
200 boxes	£122.96	61.5p
500 boxes	£362.47	72.5p

Single wall · postal / die-cut

from 70.0p each (100 boxes)

Pack	Total	Each
25 boxes	£22.69	90.8p
50 boxes	£36.48	73.0p
100 boxes	£69.95	70.0p

Choosing 18×12×3 inch (455×305×75mm) boxes

A 18×12×3 inch (455×305×75mm) box holds about 10.4 litres. Most sellers list the inside size, so the item you're packing needs to be a little smaller than this on every side to leave room for padding.

Single wall board suits light and medium items. Die-cut postal boxes arrive flat and fold into one piece, which makes them quick to pack.

Pack size matters. For single wall boxes, buying 200 instead of 5 takes the price from £1.69 to 61.5p per box, which is 64% less.

The prices on this page come from 6 different eBay sellers, and each one was checked against its own listing.

Compare every size and pack quantity →

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