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Home Maintenance / BUYING REFERENCE

Draught-excluder gap sizes

Identify whether the gap is around the door or window frame or beneath the door. Those locations need different product shapes. Measure the gap along its length rather than taking a single reading, then compare it with the excluder’s stated working range. Tesa distinguishes floor surfaces and door-bottom seal formats, so the floor covering also matters. Choose a product that suits the existing door arrangement and follow its intended-use guidance, including any restrictions on the type of door.

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Search results. Match the specifications below to the selected listing.

For a door draught excluder, first locate the opening: beneath the door, around its frame or through the letterbox. Each needs a different format. The examples below cover two internal door-bottom designs and a separate frame seal; they are not interchangeable external-door weather seals.

Compare two internal door-bottom formats

Stormguard names these two products for internal doors. Their supplied lengths differ, and only the 02SR547 page below supplies a maximum under-door gap. Do not transfer that limit to the other design.

Compare two internal door-bottom formats
Exact productSupplied lengthPublished scopeManufacturer source
Stormguard twin tube 02SR877950 mmInternal doors only; scissors trimming; supplied VelcroManufacturer reference ↗
Stormguard double seal 02SR547914 mmInternal bottom door seal; gaps up to 37 mm; carpet, tile, vinyl, wood or laminateManufacturer reference ↗

Measure the floor and the moving door

Record the door width and the clearance at several points underneath it. Check the floor along the opening arc, including a carpet edge or transition strip. A measurement taken only with the door shut does not describe every point the seal will pass.

For an original buying example, an 820 mm wide door requires a sufficient supplied length after any permitted trimming. That width alone cannot tell you whether a 20 mm gap will be sealed: you also need the product’s stated working gap, floor requirements and attachment instructions. Length and sealing depth answer separate questions.

Keep frame seals separate from bottom seals

Stormguard V Seal 05SR180 is a self-adhesive frame option for wooden or metal hinged doors and windows with a stated 1–8 mm gap range. It belongs around the frame, rather than replacing either under-door product in the table. A long roll does not establish that its profile suits the existing rebate.

If the gap is through the post opening, use the separate letterbox reference. For a window frame, the window reference compares a second documented range. Match the location and exact installation instructions before comparing Amazon pack prices.

Take the measurements to the listing

Keep the manufacturer code, intended location, length and permitted working gap together in your shortlist. Retailer photos can show a similar shape with a different profile or pack quantity. Confirm those fields on the selected offer and inspect any supplied fitting instructions.

These examples provide published dimensions and scope. They do not establish a heating-cost saving, weather resistance for an unlisted use or suitability for altering a particular door assembly. Confirm the door maker’s requirements, especially where the existing seals or ventilation have a defined purpose.

Comparison sources

Manufacturer references checked 2026-10-03. These examples describe published specifications, rather than a hands-on review.

MATCH THE DETAILS TO YOUR JOB

What to check before buying

  1. Locate the draught and measure gap variation along that opening.
  2. Match the exact product’s intended door type and stated sealing range.
  3. Check door width, supplied length and any permitted trimming.
  4. Check floor covering and free movement through the full opening arc.
  5. Follow the door maker’s requirements before changing a fire door, ventilation provision or existing seals.
A CONCRETE STARTING POINT

Checked example listing

An example of this product type, with its own specifications. Check the selected variant against your job; it is not a compatibility guarantee or a ranked recommendation.

tesa

tesa tesamoll E-Profile seal, brown, 10 m × 9 mm × 3.5 mm

Amazon identifies the brown 10 m E-Profile pack for sealing frame/perimeter gaps, not a door-bottom brush or sweep. The current manufacturer range is INSULATION Rubber Weatherstrip (Small), for gaps of 1–3.5 mm. Measure the gap and choose the correct sealing position; the manufacturer page does not independently confirm this pack’s colour or length.

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Listing identity checked 2026-10-03. Manufacturer reference

Compare the related product types

Window draught excluders: profile and gap sizes →Letterbox draught excluders: aperture and plate sizes →

Answers for your next purchase

Draughtproof an ordinary door checklist →

Reference & scope

Tesa door-seal gap and floor-type guide

This page is a selection checklist for a product type. The manufacturer instructions and exact retailer listing determine suitability, included accessories and available variants.

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