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Interspan All-Metal Series FS 135 is a specialist, heavy duty, cold drawn aluminium mechanical joint system with rubber cord seals, for movement joints in floors with extra high load capacity. The standard joint has a 35 mm joint capacity but an 'FS 174' version has a capacity of 70 mm.


Bedding and levelling on 10 mm epoxy mortar is recommended, with mechanical fixings at 300 mm symmetrical centres using FX01 chemical anchors or M10 self tapping bolts.

Standard product features


FS 135/2500:

  • Visible width: 135 mm.
  • Overall width: 206 mm.
  • Profile height: 25 mm.
  • Profile length: 4 m.

FS 174/2500:

  • Visible width: 174 mm.
  • Overall width: 245 mm.
  • Profile height: 25 mm.
  • Profile length: 4 m.


Standard leg.

Joint width:

FS 135/2500: Maximum 35 mm (construction joint/ gap).

FS 174/2500: Maximum 70 mm (construction joint/ gap).

Movement capacity:

±10 mm.


Additional pointing sealant:

A soft joint between the floor finish and the joint profile may be required to accommodate any local movement between the two. A suitable sealant for this would be Tremco Dymonic NT, applied in a 6 mm gap.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-75-50/310 Cast-in movement joints for screeds

Product specification

An important note about specifying





+44 (0)191 419 0505

Product reference

Interspan All-Metal FS 135


[FS 135/2500; height 25 mm]
[FS 174/2500; height 25 mm]
[As drawing ___]
[Contractor's choice]


Standard leg

Additional pointing sealant

[Tremco Dymonic NT]
To 6 mm gaps between joint body and floor finish.
[As drawing ___]
[Contractor's choice]

Manufacturer details

3A Walton Road,
Pattinson North,
Tyne & Wear, NE38 8QA
Tel +44 (0)191 419 0505
Fax +44 (0)191 419 2200
NBS Plus
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