For Sale UK

21st birthday backdrop

4

21st birthday backdrop for sale on largest auction and classifieds sites

Home / Party Decorations / 21st birthday backdrop for sale – 96 used, around £13 | For Sale UK
Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£12.46
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21st birthday decorations - 21st,

21st birthday decorations - 21st,

£6.99
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Happy 21st birthday - 21st,

Happy 21st birthday - 21st,

£10.93
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£11.26
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Blue silver 21st birthday - blue,

Blue silver 21st birthday - blue,

£19.95
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Happy 21st birthday - 21st,

Happy 21st birthday - 21st,

£12.52
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Large personalised happy - personalised,

Large personalised happy - personalised,

£18.95
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21st birthday banner backdrop - banner,

21st birthday banner backdrop - banner,

£11.71
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21st birthday decoration - 21st,

21st birthday decoration - 21st,

£11.86
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Happy 21st birthday banner - 21st,

Happy 21st birthday banner - 21st,

£11.08
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21st birthday decorations - birthday,

21st birthday decorations - birthday,

£6.99
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£13.49
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Happy 21st birthday - happy,

Happy 21st birthday - happy,

£10.25
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Personalised birthday banners - personalised,

Personalised birthday banners - personalised,

£16.13
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Happy 21st birthday door - 21st,

Happy 21st birthday door - 21st,

£12.25
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21st birthday party - birthday,

21st birthday party - birthday,

£13.50
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Personalised 21st birthday - personalised,

Personalised 21st birthday - personalised,

£15.99
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Happy 21st birthday - banner,

Happy 21st birthday - banner,

£13.92
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21st birthday decorations - birthday, door

21st birthday decorations - birthday, door

£9.55
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Personalised birthday party - personalised,

Personalised birthday party - personalised,

£6.60
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21st birthday party decoration - birthday,

21st birthday party decoration - birthday,

£12.70
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21st birthday party decoration - 21st,

21st birthday party decoration - 21st,

£12.76
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Happy 21st birthday banner - birthday,

Happy 21st birthday banner - birthday,

£10.62
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Happy 21st birthday backdrop - happy,

Happy 21st birthday backdrop - happy,

£13.95
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21st birthday decoration - 21st,

21st birthday decoration - 21st,

£15.08
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Koliphy 21st birthday banner - koliphy,

Koliphy 21st birthday banner - koliphy,

£17.21
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1pc backdrop happy 21st - backdrop,

1pc backdrop happy 21st - backdrop,

£13.98
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21st birthday banner happy - 21st,

21st birthday banner happy - 21st,

£11.97
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Personalised custom 21st - custom,

Personalised custom 21st - custom,

£11.99
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21st birthday party banners - 21st,

21st birthday party banners - 21st,

£16.99
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21st birthday white gold black

21st birthday white gold black

£12.95
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Personalised black gold kid - 2,

Personalised black gold kid - 2,

£7.50
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Happy 21st birthday banner - 21st,

Happy 21st birthday banner - 21st,

£12.99
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Vibrant 21st birthday banner - 21st,

Vibrant 21st birthday banner - 21st,

£11.99
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£12.17
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Happy 21st birthday banner - banner,

Happy 21st birthday banner - banner,

£12.86
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21st birthday decorations for - 21st,

21st birthday decorations for - 21st,

£19.69
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21st birthday decorations for - 21st,

21st birthday decorations for - 21st,

£20.90
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Blue silver 21st - blue, &

Blue silver 21st - blue, &

£5.35
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21st birthday party - birthday,

21st birthday party - birthday,

£16.99
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Foil happy 21st birthday - foil,

Foil happy 21st birthday - foil,

£2.23
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Happy 21st birthday - happy, door

Happy 21st birthday - happy, door

£8.12
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£15.00
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21st birthday decorations for - 21st,

21st birthday decorations for - 21st,

£22.81
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Happy 18th birthday banner - 18th,

Happy 18th birthday banner - 18th,

£14.95
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21st birthday banner - birthday, banner,

21st birthday banner - birthday, banner,

£11.83
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Eye catching 21st birthday - eye-catching,

Eye catching 21st birthday - eye-catching,

£13.95
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Happy 21st birthday banner - 21st,

Happy 21st birthday banner - 21st,

£10.91
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Happy 21st birthday banner - birthday,

Happy 21st birthday banner - birthday,

£16.38
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Gold 21st birthday banner - gold,

Gold 21st birthday banner - gold,

£13.99
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£11.99
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Koliphy 21st birthday - koliphy,

Koliphy 21st birthday - koliphy,

£12.68
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Happy 21st birthday banner - birthday,

Happy 21st birthday banner - birthday,

£12.99
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Door wall birthday vertical - birthday,

Door wall birthday vertical - birthday,

£6.00
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21st doorway curtain happy - 6, x

21st doorway curtain happy - 6, x

£5.99
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Photography backdrop happy - photography,

Photography backdrop happy - photography,

£10.45
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Koliphy 21st birthday banner - koliphy,

Koliphy 21st birthday banner - koliphy,

£15.38
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21st birthday decorations for - 21st,

21st birthday decorations for - 21st,

£19.35
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Happy 21st birthday - 21st, banner

Happy 21st birthday - 21st, banner

£14.51
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Happy 21st birthday - happy,

Happy 21st birthday - happy,

£12.99
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21st birthday decorations for - birthday,

21st birthday decorations for - birthday,

£25.99
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21st birthday decorations for - 21st,

21st birthday decorations for - 21st,

£39.00
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Happy 21st birthday party - 21st,

Happy 21st birthday party - 21st,

£19.36
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Happy 21st birthday - happy,

Happy 21st birthday - happy,

£12.93
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Happy 21st birthday - 21st,

Happy 21st birthday - 21st,

£12.13
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36x happy birthday backdrop - happy,

36x happy birthday backdrop - happy,

£4.29
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£10.40
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Blue silver 21st birthday - silver,

Blue silver 21st birthday - silver,

£21.18
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Personalised birthday party - birthday,

Personalised birthday party - birthday,

£6.20
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£10.80
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21st birthday party decoration - 21st,

21st birthday party decoration - 21st,

£13.17
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Elegant 21st birthday - 21st, banner

Elegant 21st birthday - 21st, banner

£15.95
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17th birthday decorations door - 17th,

17th birthday decorations door - 17th,

£13.45
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21st birthday banner - 21st,

21st birthday banner - 21st,

£11.79
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Personalised birthday party - personalised,

Personalised birthday party - personalised,

£5.85
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Happy 21st birthday banner - 21st,

Happy 21st birthday banner - 21st,

£18.09
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Happy birthday 21st - happy,

Happy birthday 21st - happy,

£4.38
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Rose gold glitz 21st - rose,

Rose gold glitz 21st - rose,

£2.85
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Personalised birthday party

Personalised birthday party

£14.85
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21st birthday banner happy - birthday, banner,

21st birthday banner happy - birthday, banner,

£12.93
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21st birthday banner happy - birthday, banner,

21st birthday banner happy - birthday, banner,

£11.79
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21st birthday decorations - birthday, door

21st birthday decorations - birthday, door

£12.02
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21st birthday banner backdrop - banner,

21st birthday banner backdrop - banner,

£12.02
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21st birthday decorations door - 21st,

21st birthday decorations door - 21st,

£12.02
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Happy 21st birthday rose - happy,

Happy 21st birthday rose - happy,

£17.22
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Happy 21st birthday banner - happy,

Happy 21st birthday banner - happy,

£14.09
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Happy 21st birthday - happy,

Happy 21st birthday - happy,

£16.39
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Set playwrite 21st - playwrite,

Set playwrite 21st - playwrite,

£2.24
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21st birthday banner - birthday,

21st birthday banner - birthday,

£12.17
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Stunning black gold 21st - black,

Stunning black gold 21st - black,

£12.99
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Hakotom 21st happy birthday - hakotom,

Hakotom 21st happy birthday - hakotom,

£4.99
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Sparkling 21st birthday party - 21st,

Sparkling 21st birthday party - 21st,

£18.99
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21st birthday party - 21st,

21st birthday party - 21st,

£18.08
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21st birthday banners - birthday, set

21st birthday banners - birthday, set

£2.76
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Happy 18th birthday - happy, backdrop

Happy 18th birthday - happy, backdrop

£14.85
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Personalised silver kid - 2,

Personalised silver kid - 2,

£7.50
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Looking for more 21st birthday backdrop?

Search eBay live — fresh results filtered for the best value, updated every hour.

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📊96 listings · from £2.23 · avg £12.87
⚠️ These listings were last updated more than 9 days ago. Search for fresh listings

Browse 96 21st birthday backdrop listings currently in our index. Prices range from £2.23 to £39, with an average of £12.87. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 21st birthday backdrop →

Try this: tall feathers for vase | pirate party supplies | winnie the pooh christening | hollywood party decorations | paper lanterns pink | pink decorations | wedding stage | wedding arch | wedding decorations | human skeleton

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about 21st birthday backdrop

Whether you are looking for a brand-new or second-hand 21st birthday backdrop, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £2.23, while premium listings can reach £39 — giving you a wide budget spread to work with. The average price of £12.87 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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