
- Flexible jointed pipes
- Ovoid flexible pipes
- Ogee pipes
- Perforated pipes
- Manholes
- The Perfect Manhole
- Manhole bases
- Preformed manholes
- Chamber units
- DN 3660 / 4000 chambers
- Standard cover slabs
- Special cover slabs
- Landing slabs / reducing slabs
- Adjusting units / seating rings
- Side entry manholes
- Soakaway units
- Rectangular manholes
- Demarcation chambers
- Manhole steps
- Integrated ladder system
- Chamber ring sealant
- Catchpits / silt traps
- Caisson shaft sinking system
- House inspection chambers
- Gully pots
- Box Culverts
Standard Cover Slabs


Chamber |
Depth |
Overall DN |
Standard access sizes |
Weight (kg’s) |
||||
600x600 |
675x675 |
750x750 |
750x600 |
1200x675 |
||||
900 |
150 |
1060 |
· C |
· C |
X |
X |
X |
235 |
1050 |
150 |
1230 |
· E |
· E |
· C |
· E |
X |
235 |
1200 |
150 |
1400 |
· E |
· E |
To order |
· E |
To order |
355 |
1350 * |
150 |
1560 |
· E |
· E |
To order |
· E |
· C |
505 |
1500 |
170 |
1730 |
· E |
· E |
To order |
· E |
· C |
790 |
1800 |
175 |
2050 |
· E |
· E |
To order |
· E |
· E |
1210 |
2100 |
180 |
2370 |
· E |
· E |
To order |
· E |
· E |
1745 |
2400 |
180 |
2700 |
· E |
· E |
To order |
· E |
· E |
2375 |
2700 |
205 |
3020 |
· E |
· E |
To order |
· E |
· E |
3380 |
3000 |
225 |
3350 |
· E |
· E |
To order |
· E |
· E |
4590 |
3660 * |
275 |
3960 |
· E |
· E |
To order |
To order |
To order |
7760 |
4000 * |
275 |
4500 |
· E |
· E |
To order |
To order |
To order |
10040 |
* Not Kitemarked
Notes
- Except in DN900 & 1050, 600x600 is a non standard access and not covered by the current British Standards.
- All slabs detailed are Type 2.
- Weights available on request as they are dependant on the access size.
- For details of access position, contact the technical department.
- DN3660 and DN4000 cover slabs can be supplied in 2 or 3 sections dependant on the opening required.
- All accesses have 75 x 75 corner chamfers.
- All cover slabs are 'heavy duty' and are suitable for use in main roads.







