

MegAtec 300 — metal floor expansion joint
Aluminium floor expansion joint for foot and light-wheeled traffic, with an ADA-compliant slip-resistant surface, rated to ASTM E-1399.
Specifications
| Movement capacity | Joint gaps 25, 50, 75, 100, 125, 150, 200 and 250 mm; movement ±5 mm at a 25 mm gap rising to ±70 mm at 250 mm (total 10–140 mm — see TDS) |
| Standard | ASTM E-1399 · Class I (Thermal), Class II (Wind) |
| Traffic | Foot / light-wheeled |
| Surface | Hairline-serrated, slip-resistant, ADA-compliant across the movement cycle |
| Material | Continuous aluminium floor frame + male/female central load plates. 6063 T5 & T6 aluminium, heights 25, 35, 50 and 75 mm |
| Fire rating | Fire barrier available on request; rating confirmed per job |
How a floor joint sits in the slab
Schematic — exact frame profile, blockout and fixing centres depend on the movement class and gap; see the TDS above.

Typical components
- Concrete slab
- High-strength (>40 N/mm²) levelling bed (by others)
- Optional EPDM / torch-applied waterproofing membrane (by others)
- M6 × 75 mm galvanised carbon-steel concrete screws
- Continuous aluminium floor frame
- Continuous aluminium female central load plate
- Continuous aluminium male central load plate
- Finishes / wearing surfaces
Applications
Movement
The MegAtec 300, animated through each direction it is rated to move. These are Vexcolt-group animations, not site footage; the movement each gap takes is in the data sheet.
The MegAtec 300 on our projects
Six of our written-up projects use the 300.
A clause written to the MegAtec 300 data sheet
Worked for a 100 mm floor joint. Change the gap and the movement for each location on the joint schedule and leave the rest. It names what the joint must do rather than who makes it, so an alternative has to match the performance, not just the description.
Each requirement is explained in how to specify an expansion joint. Writing to a CPWD tender? See the DSR items. See also expansion joints in buildings and the types of expansion joint.
Downloads
Every data sheet and brochure, filterable by family and location: Downloads centre. CAD details come with the joint schedule.
Need MegAtec 300 for a project?
Send your drawings — we'll confirm the system, supply and install.


