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Bog Mats

HERMEQ supplies crane mats and timber bog mats for construction sites, infrastructure projects and event access routes. Laid over soft or unstable ground, the mats spread the load of plant, vehicles and foot traffic to give temporary access while limiting surface damage and rutting. They are cut from hardwoods, from dense tropical species such as Ekki to European oak and beech, which resist water and weather and can be lifted, stacked and relaid on job after job. The range is held as permanent UK stock with next day delivery.

5 Items

Set Descending Direction

5 Items

Set Descending Direction

Ekki, tropical and European hardwood crane mats

The range is graded by timber species and strength class, from D30 European oak and beech to D70 Ekki, with dense tropical species for heavy access across wet ground.

Ekki timber bog mats

Ekki bog mats are the strongest timber mats in the range and the choice under mobile cranes, piling rigs and any load that asks more than oak or beech can give. Ekki resists acid and chemical attack and is an electrical insulator, so it is the species for contaminated land, chemical storage areas, substations and overhead line routes. On repeat civil engineering contracts, where the same mats are lifted and relaid many times, its density keeps the mats in service through each relay.

Tropical hardwood bog mats

Tropical hardwood bog mats are made from dense, marine-grade species, Okan, Dabema and Ekki, chosen for their strength and resistance to decay. They suit heavy access over waterlogged ground, temporary roads across soft fields and wetland, and crane stabilisation on uneven terrain, where mats lie in water for long periods. Okan and Dabema are the lower cost tropical timbers and keep strong water resistance, while Ekki is specified when the load is at its heaviest.

European oak and beech bog mats

Oak and beech bog mats are the cost-effective choice for general site access, wheeled and tracked machinery, excavator stabilisation and crane pads where the load allows. They carry day-to-day plant on housing developments, utility installations and outdoor infrastructure work, and they are easy to reposition as the work moves.

Corner view of an Ekki timber bog mat made from dense tropical hardwood
Ekki Timber Bog Mats

Crane mat sizes and thickness

Mats across the range run from 3m to 6m long, in a spread of thicknesses from light access mats to deep crane mats, so the same range covers a compact crane pad and a long access road.

Thickness for the load and ground

A thicker mat bends less and spreads a point load, such as an outrigger or a track, over a wider area of ground before it reaches the soil beneath. The heavier the load and the softer the ground, the thicker or higher rated the mat should be: the thinnest mats suit lighter plant on firmer ground, while saturated clay, peat or made ground under a crane calls for the upper end of the thickness range or a move from oak and beech to Ekki. Whatever the thickness, the mats need a level, prepared bed, because a mat bridging a hollow carries the load on its ends.

Length and handling on site

The shortest mats in the range are quicker to place as compact crane pads and outrigger bases, and easier to load onto a vehicle and position in a tight compound. The longest mats cover access roads and haul routes with fewer joints, which gives a smoother running surface and fewer edges for wheels to catch. Road mats are laid across the direction of travel and butted tight, so wheels and tracks bear on the full length of each mat.

Bog mats for cranes, access roads and working platforms

Crane and piling rig pads

Under a crane or piling rig, the whole lift rests on a few outrigger or track contact points, so strength class and thickness matter more here than anywhere else on site. Ekki is the standard for mobile cranes and piling rigs, tropical hardwood suits crane stabilisation on wet or uneven ground, and oak and beech pads serve excavators and lighter cranes where the outrigger loads allow.

Temporary access roads and haul routes

A temporary road over fields, wetland or waterlogged ground is a continuous run of mats, so the number of mats and the ease of relaying them count as much as the rating of any one. Tropical hardwood holds up where the road sits in standing water, and oak and beech cover long runs for wheeled and tracked machinery under moderate loads. On phased projects the same mats are lifted from finished sections and relaid ahead of the work, and the same method gives temporary roadways and vehicle routes at events and festivals.

Utility, rail and power line access

Power transmission, renewable energy, oil and gas, pipeline and rail work often reaches its sites across farmland or sensitive ground, where the mats spread plant loads over buried cables and pipes and keep the surface from rutting. Where services are newly laid or exposed, underground service protection marks and covers them before the trench is backfilled and matted over. Ekki is the species for work beside substations and overhead lines.

Contaminated and chemical sites

Acids and chemical residues on industrial and contaminated land call for a timber that resists them, and Ekki mats are specified for ground stabilisation around chemical storage, process plant and remediation areas. A set of mats kept on the contaminated area for the life of the job, and pressure washed before it leaves, stops residues travelling to the next site.

Tropical Hardwood Bog Mats
European Hardwood Bog Mats

Timber crane mats or plastic ground protection mats

Timber crane mats carry cranes, piling rigs and heavy tracked plant on soft ground, where the load has to be spread through a deep, stiff mat. Plastic ground protection mats suit lighter vehicles, pedestrians, lawns, driveways and grass car parks, and they are light enough to carry and place by hand, which makes them quicker to lay over a garden or verge for vans and light machinery. A site often needs both: timber where the crane stands and the heavy plant runs, and plastic mats on the walking routes and lighter vehicle access around it. An open trench or excavation is a different job again, spanned with road plates that bridge the gap and take traffic over it.

Frequently Asked Questions

Are crane mats and bog mats the same thing?

Yes. Crane mats and bog mats are the same hardwood mats, and the trade also calls them timber mats or timber access mats. The name usually follows the job: crane mat when the mats form a pad under a crane or piling rig, bog mat when they carry plant and vehicles over soft or waterlogged ground.

What does a D30 or D70 rating mean on a timber mat?

D30 and D70 are strength classes for hardwood timber, where the D marks a hardwood and the number is the timber's characteristic bending strength in newtons per square millimetre. A D70 Ekki mat is rated at more than twice the bending strength of a D30 oak or beech mat of the same size, so it bends less under the same load. Under a crane on soft ground, the higher class carries heavier point loads and spreads them further across the ground.

How are crane mats laid under outriggers?

The mats go down on a firm, level bed, butted tightly together, with each outrigger pad set in the centre of the mats so no part of it overhangs an edge. For heavier lifts or weaker ground, mats are often laid in two layers at right angles to spread the load further. The size and number of mats come from the crane's outrigger loads and the ground's bearing capacity, as set out in the lift plan.

Can timber bog mats be reused?

Yes. Hardwood bog mats are lifted, cleaned and relaid from job to job, and Ekki and the tropical species resist water and decay over long periods outdoors. Check each mat for splits, broken edges and heavy wear before it goes back under load, and keep worn mats out of crane pads.

How should bog mats be stored between jobs?

Stack the mats flat on timber bearers so the bottom mat sits clear of the ground, with the bearers lined up one above the other through the stack. A firm, level base and gaps for air between the mats let them dry out after a wet job. The mats stack readily, which keeps storage compact in a yard or compound.

Can bog mats be made to a custom size?

Yes. Ekki bog mats are made to order in unique profiles and coverage dimensions for jobs that standard sizes do not fit. The standard thicknesses and lengths across the range are held in stock for quicker supply.