Wet Plaster Cubic Yards to Tons Calculator

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Imperial · sales tax

Wet Plaster volume (yd³)

The volume of wet plaster in cubic yards.

About 1.6 short tons per cubic yard for mixed gypsum plaster; the dry powder is considerably lighter.

Approximate weight

16 short tons

High confidence

About 1.6 short tons per cubic yard for mixed gypsum plaster; the dry powder is considerably lighter. A planning figure, not a specification. Confirm the figure with your supplier or waste contractor before relying on it.

Conversion factor applied: 1.6 short tons per yd³

Then change the inputs to see how far the answer moves.

Show calculation logic

How this was calculated

Formula source(s)

Typical bulk density used here: approximately 1.6 short tons per cubic yard
Density varies with moisture, grading and how the material was processed

Inputs used

Wet Plaster volume (yd³): 10

Intermediate steps

Conversion factor applied: 1.6 short tons per yd³

Final result16 short tons

Confidence note: About 1.6 short tons per cubic yard for mixed gypsum plaster; the dry powder is considerably lighter. A planning figure, not a specification. Confirm the figure with your supplier or waste contractor before relying on it.

What this calculation does not cover

Mixed plaster only travels between the mixer and the wall. With the mixer on the working floor, what climbs the stair is bags and a hose; with it at ground level, the wet weight goes up as well.
Scaffolds and old suspended floors care what stands in one place, not what a day totals. Plastering concentrates it — bagged stock, filled baths, water and the plasterer at the same end of the platform. What that will take comes from whoever designed, hired or owns it.
A background takes its coat at the coat's heaviest. The board or lath and its fixings carry the wet weight, and drying sheds only the surplus water — the rest is chemically combined into the set and stays in the wall.

Estimated cost — your price

Price per short ton ($)

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.

Sources checked 2026-08-26 · in the site-wide review of 2026-09-06 · v1.0.0

Regulatory standards & verification citations2

Typical bulk density used here: approximately 1.6 short tons per cubic yard
Density varies with moisture, grading and how the material was processed

Cite this page

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Plaster volume follows from wall area and coat thickness, and the weight matters mainly for handling and for loading on suspended work. Mixed plaster is far heavier than the powder it came from, since the mix water is a substantial part of it, and that difference catches people out when estimating what has to be carried upstairs. Coverage is normally quoted by the manufacturer per bag at a stated thickness, which is a more reliable basis for ordering than a volume calculation.

Now that you have the number

These guides cover the work this quantity is for — the first ones run this calculator inside the section that raises the question.

Injecting a Remedial DPC and Replastering After Ituses this calculator

Hole spacing, cream volume per metre, what the drying wait is really for, and why the replaster over an injected course is a salt specification.

Wet Plaster volume (yd³)	Approximate weight (short tons)
1	1.6
2	3.2
5	8
10	16
20	32
50	80
100	160

Wet Plaster volume (yd³)

Approximate weight (short tons)

1.6

3.2

100

160

Frequently asked questions

Why is mixed plaster so much heavier than the bag?

Because the mix water is a large share of the finished weight. A bag that one person carries easily becomes a considerably heavier bucket once gauged, which matters when it has to go up a stair or a tower.

Should I order by bag or by volume?

By bag, using the manufacturer's stated coverage at your intended thickness. That figure already accounts for the product's own behaviour and is more reliable than converting a volume.

Can plaster be retempered?

No. Unlike sand-cement mortar, gypsum plaster that has begun to set cannot be brought back with water — the set is chemical and irreversible. Mix only what can be applied in the working window.