How Much Asphalt Patch Material to Buy for One Patch

Order patch material from the measured hole volume, not from a guessed pothole size. A squared patch has one area, one average depth, and one hole volume, and that volume divided by the yield of the bag you actually buy gives the bag count. A generic coverage figure from a guide cannot give it, because two real manufacturer yields give different bag counts for the same hole.

Start with the volume from the measurement guide, read the yield line on the bag or the product data sheet, and round the result up to whole bags. For plant material bought in bulk, convert the same volume to mass at the project compacted density and round once to the supplier selling increment.

How much asphalt patch material should you buy for one patch?

For bagged material, buy the whole number of bags that covers the hole volume: divide the hole volume by the label yield per bag and round up. For bulk plant material, buy the supplier-rounded mass: multiply the hole volume by the project compacted density, convert to tons, and round up once to the supplier increment. In both cases the order starts from the same measured hole volume, and in both cases the rounding step is the only extra material added unless a documented reason supports an allowance.

Fixture A from the measurement guide shows the method in full. The squared patch measures 48 inches by 36 inches, which is 12 sq ft, with an average depth of 2.75 inches. Its hole volume is 2.75 cu ft. That single figure drives every purchase quantity below.

Start from the measured hole volume

Measure after the patch is squared to sound pavement, with loose material and standing water out of the hole. Record one row per patch: length, width, every depth reading, average depth, maximum depth, hole volume, and base condition. A driveway with three holes is three rows, not one combined figure, because each hole has its own depth and its own base condition.

Do not order before the boundary is final. If cutting squares the patch larger than the marked outline, the area, the volume, and the bag count all change, and the order must be recomputed from the new measurements. An order placed on the ragged outline will arrive short, because the squared boundary runs past the broken edge to solid pavement.

Keep the maximum depth on the record beside the average. The average drives the volume, and the maximum sets the lift plan, since material goes in lifts and each lift is compacted before the next. One cold mix maker sets lifts at a maximum of 5 cm (2 in), with each lift compacted and the last loose lift 1 to 1.5 cm above level so it settles flush.

Count bags from the label yield

Read the yield on the bag or data sheet for the product you buy, in cubic feet per bag for a compacted fill. The yield is a property of that product, not of cold patch in general. Three manufacturer figures show the spread:

Bags = hole volume / label yield per bag, rounded up

Fixture A at 2.75 cu ft, bought as SAKRETE, needs 2.75 / 0.374 = 7.35 bags, rounded up to 8 bags. The same hole, bought as QUIKRETE No. 1701, needs 2.75 / 0.32 = 8.59 bags, rounded up to 9 bags. One more bag for the same hole, decided by the label, not by a rule of thumb. A generic guide figure of about 0.5 cu ft per 50 lb bag would give 6 bags for this hole, which is fewer than either manufacturer yield supports, and that gap is why the label yield, not a guide figure, controls the count.

Round up, never down. A part bag cannot be bought, and the rounding step already adds cover: 8 bags at the SAKRETE yield cover 2.99 cu ft against a 2.75 cu ft hole. Do not add a second percentage on top of the rounding unless a project record names a reason, such as a second patch that may be squared larger. The general ordering guide keeps the same separation between a measured quantity, a documented allowance, and supplier rounding.

A metric check uses the same method. Fixture C from the measurement guide measures 1.2 m by 0.9 m, which is 1.08 sq m, at an average depth of 70 mm, which is 0.07 m. Its volume is 1.08 x 0.07 = 0.0756 cu m. At the SAKRETE yield of about 0.011 cu m per bag, the count is 0.0756 / 0.011 = 6.87 bags, rounded up to 7 bags.

Placing the material loose above level and compacting it flush is placement, not extra purchase. The yield figures above are compacted yields, so the purchase quantity already describes the finished, compacted patch. Filling loose above level and compacting down to level is how that compacted volume is achieved.

What if you buy in bulk instead?

Bulk plant material is sold by mass, so the hole volume must become a mass before it can be ordered. Use the project compacted density for the selected mixture, in pounds per cubic foot, from the producer, the project specification, or the mix record. Do not use a universal density: the density guide records density by mixture, lift, state, source, and date because a bare number without that record cannot support an order.

Bulk mass = hole volume x compacted density

Fixture A at the example density of 145 lb/cu ft gives 2.75 x 145 = 398.75 lb, which is 0.199 short tons. That example density is an arithmetic fixture from the coverage guide, and the reader must replace it with the project value before ordering. The result still makes the small-quantity point plainly: one patch is a fraction of a ton, far below a full truck load. Confirm the supplier minimum order, the selling increment, and whether pickup or delivery applies before placing the order, and confirm whether a partial load carries different terms. Those terms come from the supplier quote, not from this page.

For bulk material, the same rounding rule applies: round the mass up once to the supplier increment. Do not round at the volume stage and again at the mass stage, because double rounding inflates the order without a record. Keep the ticket with the order, and check that the ticket mass, mixture, and job match the order before the material is placed. The general ordering guide covers load allocation and ticket checks for larger jobs.

Order checklist for one patch

• Product chosen for the patch life, depth, and base condition, from the patch product guide.
• Label yield per bag, or project compacted density for bulk, recorded with its source.
• One measurement row per patch: squared length, width, depth readings, average depth, maximum depth, and hole volume.
• Lift plan from the label: lift limit, compaction for each lift, and the loose height of the last lift.
• Bag count or bulk mass computed from the hole volume and rounded up once, with the arithmetic kept on the record.
• Supplier confirmations for bulk: mixture, minimum order, selling increment, partial-load terms, pickup or delivery, dispatch timing, and ticket procedure.
• Retailer confirmations for bags: bag size, yield, and stock, since a different bag size from the same brand has a different yield.
• Unopened bags kept sealed for a later patch only when storage conditions on the label allow it; opened bags are used first, because an opened bag cannot be returned to stock.

Common ordering mistakes

• Ordering from the ragged pothole outline instead of the squared patch, then arriving short.
• Using one generic coverage figure for every product, when two manufacturer yields give different counts for the same hole.
• Rounding a bag count down to save one bag, then stopping one bag short of a finished patch.
• Adding a waste percentage on top of whole-bag rounding without a documented reason.
• Mixing bag sizes in one count, so a 66 lb yield is applied to a 50 lb bag or the reverse.
• Ordering bulk mass from a guessed density instead of the project compacted density.
• Combining several holes into one area and one depth, hiding the deep pocket that changes the lift plan.
• Ordering before the squared boundary is final, then finding the cut patch larger than the order.