Comprehensive Product Range
Next Day Delivery Available on Orders Before 4pm
Rated Excellent on TrustPilot

Fire Door Strips

Fire door strips are the seals fitted around the edge of a fire door or frame that keep a certified door performing as tested. Under heat, intumescent material expands to close the perimeter gap and block flame spread; brush or fin seals work alongside them to hold back cold smoke at ambient temperatures.

Browse intumescent strips for fire-only protection, smoke seals for cold smoke control, and combined fire and smoke variants — available from Lorient, Pyroplex and other leading manufacturers in widths from 10mm to 30mm to suit FD30 and FD60 doors.

Read more

173 items

Filter

Filter

Range

Smoke Seal Type

Bulk Packs

Fire Only or Fire & Smoke

Brand

Colour

Height

Door Material

Length

Rebated or Surface Mounted

Width

Price (Exc. VAT)

Bulk Buy
Certifire Approved
FD30
Lorient Brush Seal in White

LP1004SS/WH-50

Lorient SS Fire & Smoke Seal 10x4mm White (Pack of 50)

£150.22 Inc. VAT£125.18 Exc. VAT
5 in stock
View Product
Certifire Approved
FD60
lorient fire only seal in white

LP2004FO/WHITE

Lorient Fire Only Seal 20x4mm White

£4.38 Inc. VAT£3.65 Exc. VAT
266 in stock
View Product
Certifire Approved
FD30
lorient centre twin fin seal in white

LP1504TS/WH

Lorient TS (Centre Twin Fin) Acoustic Fire & Smoke 15x4mm White

£7.02 Inc. VAT£5.85 Exc. VAT
205 in stock
View Product
Certifire Approved
FD30
Lorient Fire Only Seal in Brown

LP1004FO/BR/LIGHT

Lorient Fire Only Seal 10x4mm Light Brown

£2.78 Inc. VAT£2.32 Exc. VAT
153 in stock
View Product
Certifire Approved
FD60
lorient fire only seal in dark brown

LP2004FO/BR/DARK

Lorient Fire Only seal 20x4mm Dark Brown

£4.38 Inc. VAT£3.65 Exc. VAT
55 in stock
View Product
Certifire Approved
FD30
Lorient Side Fin Seal in Brown

LP1004AS/BR/DARK

Lorient AS (Side Fin) Acoustic Fire & Smoke 10x4mm Dark Brown

£5.47 Inc. VAT£4.56 Exc. VAT
125 in stock
View Product
Certifire Approved
FD30
lorient centre twin fin seal in black

LP1504TS/BLK

Lorient TS (Centre Twin Fin) Acoustic Fire & Smoke 15x4mm Black

£7.02 Inc. VAT£5.85 Exc. VAT
871 in stock
View Product
Certifire Approved
FD30
lorient fire only seal in white

LP1004FO/WHITE

Lorient Fire Only Seal 10x4mm White

£2.78 Inc. VAT£2.32 Exc. VAT
359 in stock
View Product
Certifire Approved
FD60
Pyroplex 25mm intumescent strip in white

FO2504/WH

Pyroplex Fire Only Intumescent Strip, 25mm x 4mm x 2.1m, White

£4.32 Inc. VAT£3.60 Exc. VAT
116 in stock
View Product
Certifire Approved
FD60
Lorient Fire Only Seal in Brown

LP2004FO/BR/LIGHT

Lorient Fire Only Seal 20x4mm Light Brown

£4.38 Inc. VAT£3.65 Exc. VAT
124 in stock
View Product
Certifire Approved
FD30
lorient centre twin fin seal in black

LP1004TS/BLK

Lorient TS (Centre Twin Fin) Acoustic Fire & Smoke 10x4mm Black

£4.74 Inc. VAT£3.95 Exc. VAT
317 in stock
View Product
Certifire Approved
FD30
Lorient Side Fin Seal in Brown

LP1504AS/BR/DARK

Lorient AS (Side Fin) Acoustic Fire & Smoke 15x4mm Dark Brown

£8.27 Inc. VAT£6.89 Exc. VAT
110 in stock
View Product
Certifire Approved
FD60
lorient finesse in white

LP2004/FIN/WH

Lorient Finesse Fire & Smoke Intumescent Strip 20x4mm White

£12.06 Inc. VAT£10.05 Exc. VAT
67 in stock
View Product

You've viewed 120 of 173 products

Choosing the right fire door strip

Every certified fire door relies on a perimeter sealing system to perform as tested. The door leaf itself can hold back fire for 30 or 60 minutes, but without the correct strip fitted into the edge of the door or frame, hot gases, flame and smoke would escape through the perimeter gap long before the door leaf failed. Specifying the right product — and fitting it correctly — is what turns a fire door blank into a compliant FD30, FD30s, FD60 or FD60s assembly.

Intumescent strips, smoke seals and combined seals

There are three broad categories of fire door strip, and the right choice depends on the door's classification:

  • Intumescent strips expand rapidly when exposed to heat, sealing the gap between door and frame to prevent flame and hot gas spread. Used on FD30 and FD60 doors where smoke control is not required.
  • Smoke seals use a brush, fin or pile to block cold smoke at ambient temperatures, before any intumescent has had a chance to activate. They can be fitted alongside a fire-only strip or as a standalone product for draught and acoustic control.
  • Combined fire and smoke seals integrate both functions in a single product — an intumescent core with a brush or fin attached — and are required for doors designated FD30s or FD60s (the "s" denotes smoke).

Read MoreRead Less

This field is for validation purposes and should be left unchanged.