Hard Landscaping

Product ranges:
ACCESS COVERS | SUPRABLOC | TELEBLOC | SOLOBLOC
DRAINAGE | AQUASLOT | AQUADISH | AQUADRAIN | SUPRADRAIN
TREE PRODUCTS | ARBORSLOT | ROOTBOX
BINS/SEATING

Jones of Oswestry has been a premier provider for over fifty years of high quality Hard Landscaping steel products including access covers, drainage gratings and decorative products.

General technical detail, composition and manufacture:

Access Covers Application

External paved areas where:-

  • Aesthetic finish is important
  • Public domain therefore anti slip and anti trip measures important
  • DDA compliance is a design minimum
  • Single person lift not required.

Mechanics, Performance

In order to ensure the covers continue to perform for their design life all Jones SUPRABLOC covers are tested to BS EN 124 load classifications.

Further design considerations include deflection under actual live loading to protect finishes from damage in service.

Damaged or proud infill constitutes the most common complaint by the general public and constitutes a large part of injury claims on local authorities from slip and trip.

Composition and Manufacture

Covers are fully welded fabrications using a minimum of 6mm thick structural steel plate.

Access covers are tapered inward at their base to ensure adequate clearance for removal in service.

Lifting points are integral to each corner of access covers and include a fully welded, robust finish to cater for the filled weight of recessed access covers in service.

Underside of cover trays include heavy duty bracing to support the relevant load classification with reduced deflections when subject to live loading. Frame units include heavy duty ‘T’ section format around all sides of the unit.

Pierced anchor points together with a full width seating ensures that any load is transmitted back to supports with less risk of localised failure in the bedding material.


Drainage Application

Point drainage gratings within run of dished drainage blocks to pedestrianised areas

  • Public domain therefore trip and slip measures important
  • Single person operation for maintenance (subject to size)
  • DDA compliance is a design minimum

Aquadish fabricated hinged drainage gratings and frames are manufactured specifically to provide point drainage to linear shaped gulleys within a hard landscape area. The Aquadish drainage grating system is available in a range of sizes to suit specific site requirements and frame depths to suit specific surrounding finishes with their respective bedding.

Mechanics, Performance

In order to ensure the gratings continue to perform for their design life all Aquadish units are available in a range of load classifications as listed overleaf.

Jones deflection criteria ensures that the amount of deflection when subject to serviceability loading  is limited, and hence greatly reducing the risk of damaged gratings.
Damaged pavement metalwork can lead to  complaints from the general public and constitutes a large part of injury claims on local authorities from slip and trip.

All drainage slots are DDA compliant and provide a minimum number of  slot rows to guard against surface water “run-over” in times of high rainfall.

Multiple slots also increase the hydraulic capacity or the units in service due to increased drainage slot area.

Composition and Manufacture

Gratings are full welded fabrications using a minimum of  4mm thick structural steel plate.
Frame units include heavy duty ‘T’ section format to 2 sides of the unit

Pierced anchor points together with a full width seating ensures that any load is transmitted back to supports with less risk of localised failure in the bedding material.


Tree Products Application

Jones Guide to Sustainnable Urban Planting

Adequate soil watering and aeration to trees within paved areas where:-

  • Aesthetic finish is important
  • Public domain therefore anti slip and trip measures important
  • DDA compliance is a design minimum.

General

Arborslot fabricated recessed tree surrounds are manufactured specifically to accept block pavior and slab in-fill.

The Arborslot drainage grating system is available in a range of sizes to suit specific site requirements and tray depths to suit specific infill thicknesses with their respective bedding.

Different tree species and maturity require different aperture sizes. Arborslot system includes any aperture size to suit.

Mechanics, Performance

Arborslot provides adequate aeration to the tree root ball.

Without the presence of slotted aeration there is an increased risk of changes to the soil PH value by virtue of the formation of Carbolic acids.

Soilbound essential nutrients can be locked-in and denied to the root system leading to increased risk of tree failure. In order to ensure the gratings continue to perform for their design life all Arborslot units are available in a range of load classifications as listed page 118.

Arborslot units are designed to support a vehicle load without transmitting any of that load to the root ball of the tree.

All units are designed with a reduced deflection when subject to load, to protect infill material. Damaged or proud infill constitutes the most common complaint by the general public and constitutes a large part of injury claims on local authorities from slip and trip.
All drainage slots are DDA compliant and provide a minimum number of 2 slot rows to guard against surface water run-over in times of high rainfall.

Multiple slots also increase the hydraulic capacity or the units in service due to increased drainage slot area

Composition and Manufacture

Units are full welded fabrications using a minimum of 4mm thick structural steel plate. Grating slots are tapered to minimise the risk of trapped debris affecting the drainage capacity.

Frame units include heavy duty ‘L’ section format around all sides of the unit.. Pierced anchor points together with a full width seating ensures that any load is transmitted back to supports with less risk of localised failure in the bedding material.