Deep traction tread and reinforced sidewalls for timber hauling on unpaved forest roads. Built for mud, steep grades, and heavy loads.
Logging is one of the most demanding applications for commercial truck tires. Every trip starts with an empty truck climbing steep, unpaved forest roads to a landing where timber is loaded, then descending those same roads at maximum gross vehicle weight. The roads are narrow, rutted, covered in mud or loose gravel depending on the season, and lined with stumps, rocks, and debris that threaten tire sidewalls on every pass. No highway tire survives this environment, and even general-purpose mixed-service tires often fall short of the traction and durability that logging demands.
The dual-duty cycle of logging makes tire selection uniquely challenging. Loaded log trucks weigh 80,000 pounds or more, putting maximum stress on every tire while navigating roads that were carved through timber stands with minimal grading. But the same truck that crawls down a muddy forest road at 15 mph loaded must then run an empty highway return at 55 to 65 mph, asking the tires to deliver acceptable fuel economy and handling at speeds where aggressive off-road tread patterns generate noise, heat, and accelerated wear. The best logging truck tires manage this contradiction by delivering enough traction for the loaded forest road segments without sacrificing acceptable performance on the empty highway return.
Mud is the constant adversary. Forest roads in the Pacific Northwest, Southeast, and Northeast timber regions experience extended wet seasons where the road surface becomes a mix of clay, organic material, and standing water. Tires need self-cleaning tread geometry that sheds mud as the wheel rotates rather than packing it into the tread voids and losing traction. Open shoulder designs with wide lateral channels and independent tread blocks provide the best mud evacuation, allowing the tire to dig through the soft surface and find firm ground beneath.
Hanksugi offers three tire models suited to the demands of logging operations. The HS68 open shoulder drive tire provides the traction and self-cleaning performance needed on muddy forest roads, with stone grip protection that prevents gravel from drilling through the belt package. The HS76 mixed-service all-position tire handles the steer position with reinforced sidewall protection against the rocks and stumps that line forest roads. The HS58 traction drive tire, with its M+S rated pattern and anti-puncture laminations, is built for the worst road conditions encountered in logging operations.
Log trucks live in two worlds, and the tire must perform in both. Understanding the demands of each leg of the trip helps you select tires that provide the best compromise between loaded off-road performance and empty highway efficiency.
The right approach is to prioritize loaded forest road performance and accept the compromises on the empty highway return. A tire that gets you out of a muddy landing loaded is worth more than one that saves 2% on fuel during the empty return. The HS68 open shoulder design provides the best balance: aggressive enough for forest road traction but civilized enough for highway speeds on the empty return.
Drive, steer, and all-position tires selected for timber hauling, forest service roads, and the dual-duty cycle of loaded off-road and empty highway running.
Open shoulder drive tire with stone grip protection and four decoupling grooves. Self-cleaning tread geometry sheds mud on forest roads. Wide footprint for traction on soft, loose surfaces under heavy timber loads.
Mixed-service all-position tire with extra deep tread and reinforced sidewall protection. Handles the rocks, stumps, and debris that line forest roads while delivering stable steering response on highway segments.
Traction drive tire with M+S pattern and anti-puncture laminations. Aggressive lug design provides maximum grip on muddy landings and unimproved forest roads where standard drive tires cannot gain traction.
Forest roads present a unique collection of tire hazards that are not found in any other trucking application. Understanding these hazards and selecting tires with the right protective features can mean the difference between completing a load and calling for a tire service truck on a remote forest road where cell service does not exist.
When timber is harvested and a road is cut through the stand, stumps are typically cut to ground level but not removed. Over time, soil erosion exposes these stumps, and they protrude into the travel lane. A stump striking the sidewall of a tire at even moderate speed can cut through the sidewall rubber and expose the body plies, leading to a blowout. Root balls from windfall trees can extend across the road surface and impact the tire with enough force to break the bead seal or damage the rim. Tires with reinforced sidewall construction, like the HS76, provide additional rubber thickness in the sidewall area that absorbs impact and resists cutting from stumps and roots.
Forest roads in the Pacific Northwest can receive 60 to 100 inches of rainfall annually. This saturates the road surface and creates deep mud that can immobilize a loaded log truck. Ruts form from repeated heavy loads, channeling water and creating troughs that trap tires and reduce steering control. Landing areas where logs are loaded are particularly vulnerable to soft ground conditions because the heavy equipment compresses and churns the soil. Self-cleaning tread patterns with wide lateral channels are essential for maintaining traction in these conditions. The HS68 open shoulder design allows mud to be expelled from the tread as the tire rotates, maintaining the biting edges that grip through the mud to the firmer surface beneath.
Forest road surfaces are typically composed of locally available material, which can include sharp angular rock that cuts and chips tread rubber. In mountain timber areas, road surfaces may include fractured granite, basalt, or slate with edges sharp enough to slice through standard tire compounds. Rocks also accumulate in tread grooves and drill through the rubber into the belt package if not ejected. Stone grip protection features, like those on the HS68, include platforms in the groove bottoms that prevent stones from reaching the depth needed to contact the steel belts. Checking tread grooves for lodged stones at every stop is a simple habit that prevents expensive belt damage.
Forest roads are built to access timber, not to meet highway grade standards. Grades of 10 to 15 percent are common, and some skid roads approach 20 percent for short pitches. Descending a 12 percent grade at 80,000 pounds gross vehicle weight requires sustained braking that generates intense heat in both brakes and tires. The drive tires absorb much of this braking energy, and the internal temperature can rise rapidly during a long loaded descent. Proper inflation pressure is critical for managing heat during grade descents. Under-inflated tires flex more, generate more heat, and are more likely to suffer a belt separation or blowout during or immediately after a long loaded downgrade. The HS58 uses anti-puncture laminations that add structural reinforcement beyond the standard belt package, providing an additional safety margin during high-stress grade descents.
Each position on a log truck faces different demands. Matching the right tire to each position maximizes the life of every tire while ensuring the truck has the traction and handling needed to operate safely on forest roads.
The steer tires on a log truck must deliver responsive handling on narrow, winding forest roads where a missed turn can put the truck off the road and into the trees. At the same time, they need reinforced sidewalls to survive contact with stumps and rocks along the road edge. The HS76 mixed-service all-position tire provides the sidewall protection logging demands without compromising the steering precision needed for tight forest road curves. Its deep tread provides extended life even at the slow speeds and constant turning that characterize forest road driving.
Drive tires are the workhorse of a log truck. They must transmit engine torque to the road surface on mud, gravel, and loose soil while carrying maximum axle weights on every loaded trip. Traction failure on a loaded drive tire climbing a grade can result in the truck sliding backward, creating an extremely dangerous situation. The HS68 open shoulder design provides reliable traction in variable conditions with mud-clearing geometry. For the worst conditions, the HS58 M+S traction tire offers maximum grip with anti-puncture laminations that protect against the rocks and debris embedded in forest road surfaces.
Log trailer tires must handle the concentrated weight of a full timber load while tracking through the ruts and mud of forest roads. Many log trailers use tandem or tri-axle configurations to distribute the timber weight, and each tire must carry its proportional share. The trailer tires also endure the same stump and rock hazards as the tractor tires but with less driver visibility. For log trailers that also run highway segments, an all-position tire that handles both environments is the best choice. Maintaining proper inflation on all trailer positions is critical because log trailers experience more weight variation than standard freight trailers as the load settles during transport.
Log trucks in North America typically use the following commercial truck tire sizes. The correct size depends on your truck configuration, axle ratings, and the maximum timber payload your operation requires.
| Tire Size | Application | Hanksugi Models | Details |
|---|---|---|---|
| 11R22.5 | Standard log truck steer, drive, and trailer | HS68, HS58 | View Size Guide |
| 11R24.5 | Tandem/tri-axle log trucks for additional clearance | HS68, HS58 | View Size Guide |
| 295/75R22.5 | Log truck drive and trailer positions | HS68 | View Size Guide |
| 285/75R24.5 | Heavy log truck drive axle configurations | HS68 | View Size Guide |
| 295/80R22.5 | LATAM logging operations, all-position | HS76 | View Size Guide |
Need help selecting the right tires for your logging operation? Our fleet solutions team understands the unique demands of timber hauling and can recommend tire configurations matched to your specific terrain, timber species, and haul distances. Contact us for a consultation.
Logging operations often run in remote areas where tire service is hours away. A tire failure on a forest road means lost production for the entire day, plus the cost of emergency service at remote-area rates. Prevention through proper maintenance is far cheaper than emergency repair.
Forest roads punish under-inflated tires more than any other surface. The combination of heavy loads, slow speeds, and rough terrain generates intense internal heat in tires that are already compromised by low pressure. Check all tire pressures before leaving the yard each morning and carry a portable inflator for field adjustments. Set pressures based on the loaded axle weight, not estimates. A properly inflated logging tire resists impacts better, tracks straighter in ruts, and dissipates heat more effectively than one running even 10 PSI low.
While waiting for the loader to build your load, walk around the truck and inspect every tire sidewall. Look for fresh cuts, gouges, and bulges that indicate impact damage from the last trip. A sidewall cut that does not yet expose the body plies can be monitored, but a cut showing white or metallic cord means the tire should be replaced before the next loaded trip. Catching sidewall damage early allows you to schedule tire changes at the yard rather than dealing with a blowout on a forest road.
Forest road gravel lodges in tread grooves and drills through the rubber toward the steel belts over repeated rotations. A single stone can penetrate to the belt package within a few hundred miles if not removed. Check tread grooves during every inspection stop and pry out lodged stones with a tire probe. This takes two minutes per tire and prevents belt damage that would destroy the casing's retread potential. Tires with stone ejection features, like the HS68, include raised platforms in the groove bottoms that help prevent stones from reaching critical depth.
A retreadable logging tire casing saves 40 to 60 percent of the new tire cost. But logging conditions are harsh on casings, so preservation requires deliberate effort. Remove tires before the tread wears into the belt package, even if localized wear patterns create thin spots while the rest of the tread has life remaining. Maintain proper inflation throughout the tire's service life. Store removed casings in a cool, dry location away from sunlight and ozone sources. Tag each casing with the truck number, position, and removal reason. Visit our retreading page for Hanksugi casing acceptance criteria and retreading options.
Common questions about logging truck tires, forest road performance, and timber hauling tire selection.
Logging trucks need tires with aggressive tread patterns for traction on unpaved forest roads, reinforced sidewall construction to resist damage from rocks and stumps, and deep tread depth for service life under heavy loads at slow speeds. Drive positions need open shoulder or deep lug designs that self-clean mud. Steer positions need responsive handling for narrow forest roads. All positions need sidewall protection against the hazards that line forest access roads.
Most log trucks in North America use 11R22.5 or 11R24.5 tires. The 11R24.5 provides slightly more ground clearance for soft conditions. Some operations also use 12R22.5 for additional load capacity. In LATAM markets, 295/80R22.5 and 11R22.5 are the most common sizes. Match the tire size to your truck manufacturer's specifications and actual axle weights with maximum timber payload.
Mud fills tread voids and prevents the tire from gripping the road surface. Tires with open shoulder designs and wider groove spacing self-clean more effectively because mud is expelled as the tire rotates. M+S rated tires with aggressive open shoulder tread patterns provide the best mud traction. Maintaining proper inflation is especially important in muddy conditions because under-inflated tires deform and trap mud rather than shedding it.
Logging truck tires suffer sidewall damage from rocks, stumps, and debris lining narrow forest roads. Tree stumps cut close to the surface catch the sidewall as the truck passes. Rocks at the road edge present sharp edges at sidewall height. Tires with reinforced sidewall construction resist this damage better than standard tires. Inspect sidewalls before and after every trip on forest roads.
Yes, if the casing is in good condition. The retread acceptance rate for logging casings is lower than highway casings due to sidewall damage and puncture exposure. Maximize retread potential by using reinforced sidewall tires, maintaining proper inflation, removing tires before tread reaches the belts, and inspecting casings promptly. A retreadable casing saves 40 to 60 percent of new tire cost.
Log trucks face a unique dual-duty challenge. Prioritize tires for the loaded forest road conditions, since that is where traction failures and tire damage are most dangerous. Accept that aggressive tread patterns will be slightly less fuel-efficient on the empty highway return. The HS68 on drive and the HS76 on steer provide the best compromise between loaded off-road performance and empty highway efficiency.