Using Plywood Sheets to Protect Asphalt

Plywood can spread the load of a delivery, a dumpster, or a small machine so a hot or thin driveway is less likely to dent. It does not turn a weak base into a strong one.

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What the sheets are for

Asphalt creeps under a concentrated load, especially on a hot day or while it is new. A pallet foot, a dumpster wheel, an outrigger, or a trailer tongue puts a lot of weight on a small patch. Plywood sheets spread that load over a wider area and keep steel edges from biting the mat. Use exterior-grade sheets in sound condition, and lap or screw them so they do not slide apart and leave a bare seam under the tire. The sheet thickness has to match the load. A thin panel under a heavy container can punch through and still dent the driveway. Ask the delivery company what they want under their equipment. This is load spreading, not a pavement design. If the base is already pumping, plywood on top will not stop the rut. Sealcoat under the sheet is not a cushion and can stick to the wood if it is fresh.

How to place them so they do not cause a new scar

Sweep the asphalt first. Grit under a sheet becomes a ball that dents the mat as the load rocks. Place sheets in the wheel path and under every foot or outrigger, and extend them beyond the contact so an edge does not act as a knife when the load shifts. In hot weather, check under the sheets after the truck leaves. A dent that appears anyway means the load was too heavy, the asphalt was too warm, or the base yielded. Do not leave sheets down for weeks in the sun if they cup and trap water. After removal, look for rust stains from nails and for crushed sealer. A measuring wheel is irrelevant here except to mark a work zone. It does not rate the load. If you are protecting a brand-new driveway, the better tool is to delay the heavy delivery until the paver says the mat can take it.

When you need more than wood

Very heavy equipment, cranes, and repeated truck turns may need steel plates or a different staging area, not another layer of plywood you hope will be enough. Plates have their own slipping and gouging risks and should be rented for the load, not improvised. If a rut still forms, do not fill it with sealer. A shallow scuff may be cosmetic. A deep channel that holds water is a paving repair: cut and patch, or reconstruct the base if it moved. Estimate hot-mix tons for that repair area at AsphaltTons.com and confirm the plant's density and the day's price. Cold patch can be a temporary leveler so a tire does not drop in, and it remains temporary. Next time, stage the load on the street if the town allows, or on the part of the drive built for trucks, instead of on the hottest, newest asphalt.

A practical sequence

Sweep the surface and lay sound plywood under every concentrated foot and wheel.
Lap the sheets so a gap does not open under the load.
Ask the hauler what protection they require for their weight.
Inspect the asphalt after removal and patch real ruts, not just the color.

The mistake to skip

Sliding a thin sheet under one wheel and assuming a hot driveway is protected.

Questions people ask

Does plywood prevent all dents?

No. It spreads a load. A heavy truck on hot, thin, or poorly supported asphalt can still rut.

Can I use OSB scraps?

Solid exterior plywood is the usual choice because it holds together when wet. Weak scraps split and print their edges into the mat.

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