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28 x 48 ft hay tarp, and what to put in writing

Published market reference. 28 x 48 ft is a format published by US retailers, read on 2026-08-20. It is here as a reference point: the numbers below are what the market publishes, and the spec further down is what we would confirm in writing before a factory ever cuts one. We hold no stock; the listed retail prices are not our quotes.

Published for this format

Flat size	28 x 48 ft
Fabric at Tarp Supply	12 mil, 7 to 8 oz per square yard
Fabric at TarpsPlus	16 mil, 8 oz per square yard

Source: N2 · Tarp Supply and TarpsPlus listings, read 2026-08-20

US retail price anchors

Published prices from the vendors named below, not our quotes.

Vendor	Fabric	Published price	Source
Tarp Supply	12 mil	645.19 USD	N2 · Tarp Supply listing, read 2026-08-20, shown at 36 percent off 1,008.00 USD
TarpsPlus	16 mil	516.63 USD	N2 · TarpsPlus listing, read 2026-08-20, shown against a 697.00 USD list price

Anchors for budgeting, not our quotes. A sourcing quote depends on spec, quantity, freight and duty, and is documented in writing.

What must be on the written spec

Thickness in mil AND weight in oz per square yard, because they do not track each other
Grommet or tie-down spacing, counted, not described
Hem construction: rope in the hem, webbing, or a sleeve for a pipe
Corner and edge reinforcement
Which face is coated, and which colour faces the sun
Flat size against the stack plus its overhang, not against the footprint
What the warranty covers, for how long, and against what

What US vendors publish for hay tarp fabric

Thickness	12, 15, 16 and 17 mil, all sold as heavy duty or premium
Fabric weight	7.30 oz, 7 to 8 oz and 8 oz per square yard, and one line publishes none
Material	coated woven polyethylene, high density
Grommet spacing	18, 24 or 36 inches depending on the line
Claimed service life	3 to 5 years, where it is claimed at all
Warranty	1 year on one line, one extended warranty with no number attached, and none published on the other two lines
Grab tensile and tear strength	not published · Not published by any hay tarp vendor read in this pass. A flatbed tarp has ASTM D751 values a buyer can demand; a hay tarp has none. It is asked for at contract and tested, never assumed.

Source: N2 · published listings of Tarp Supply, TarpsPlus, Tarps Now and A1 Tarps, read 2026-08-20

Checked at reception

Thickness measured, and weight per area on a cutting. The two specs do not agree across vendors, so a label is not a measurement.
Grommet count and spacing against the order. Published spacings run from 18 to 36 inches, a factor of two on the spec that carries the wind load.
Hem construction opened and checked. Rope in the hem, webbing, or a sleeve for a pipe are three different products sold under the same words.
Grommet pull test at a corner. Growers describe tie-downs tearing out before the fabric gives, with the stack open before anyone notices.
Flat dimensions measured against the stack you actually build. A cover sized to the stack footprint and not to the stack plus its overhang cannot be tensioned.

Fixing before fabric: a hem that carries the load, hardware set into that hem, and a tie-down plan for a stack that settles. A thicker fabric on a weaker hem is the more expensive way to fail.

Below the factory MOQ a custom order does not exist. See the supply calendar before planning a first order.

Other published hay tarps

Request a documented quote Size the tarp to your stack first

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