Quick answer
Match the plaster size to the wound's location and size: small cuts on fingers need a 19mm wide strip, larger wounds on knees or elbows need a 76mm x 25mm or larger dressing, and for arm injuries a triangular bandage works as a sling.
Why plaster size matters
Using the wrong plaster size can leave a wound unprotected or cause irritation from excess adhesive on healthy skin. A plaster that is too small may not cover the entire wound, increasing infection risk, while an oversized plaster can be uncomfortable and waste supplies. Choosing the correct size ensures the dressing stays in place and the wound heals properly.
Frequently asked questions
What size plaster do I need for a small cut on my finger?
For a small cut on a finger, a plaster that is 19mm to 20mm wide and about 76mm long works well. The Washproof Plasters Box includes 76x19mm strips that are ideal for this. Alternatively, the Blue Plasters One Size at 76x20mm also fits most fingers. Choose a narrow strip (19-20mm wide) for finger cuts to avoid excess adhesive on the sides.
What size plaster is best for a larger wound on my knee or elbow?
For larger wounds on joints like knees or elbows, you need a wider plaster that can flex. The Washproof Plasters Box includes 76x25mm strips and larger sizes like 60x46mm and 72x50mm that provide better coverage and stay in place during movement. Use a wider plaster (at least 25mm wide) for joints to ensure full coverage and adhesion.
When should I use a triangular bandage instead of a plaster?
Use a triangular bandage for arm injuries that require a sling, such as fractures or dislocations, or for creating a broad fold bandage for splinting. It is not for covering small wounds but for immobilizing and supporting an injured limb. The Triangular Bandage 90 x 127cm is designed for this purpose. Triangular bandages are for support and immobilization, not for wound coverage.
Product facts
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Blue Plasters One Size 1×100: Metal Detectable blue plasters are individually wrapped and hypoallergenic, wash proof, and sized 7cm x 2cm (approx. 76mm x 20mm). This one-size option works well for small to medium cuts on fingers or hands, especially in catering environments where metal detection is needed.
Blue Plasters One Size 1×100
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Washproof Plasters Box 100 Assorted 1 X 100: Washproof Plasters Box 100 Assorted includes multiple sizes: 40 of 76x25mm, 32 of 76x19mm, 20 of 40x20mm, 4 of 60x46mm, and 4 of 72x50mm. The assortment covers a range of wound sizes from small finger cuts to larger knee or elbow abrasions, making it a versatile choice for home or workplace first aid kits.
Washproof Plasters Box 100 Assorted 1 X 100
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Triangular Bandage 90 x 127Cm Sterile x6: Triangular Bandage 90 x 127cm made from woven cotton calico, can be folded for splinting or used as a sling for arms. For arm injuries, a triangular bandage provides support and immobilization, and its soft material can also serve as padding or protection for larger wounds.
