Thin sheet
Engraved clear sheet for covers and faces
Acrylic Sheet Thickness and Sizes: Metric, Imperial and 4 × 8 ft
Cast acrylic sheet from 1 to 30 mm in 1220 × 2440 mm (4 × 8 ft), 2050 × 3050 mm and 2000 × 1000 mm full sheets — with imperial equivalents and sheet weights for freight planning.
Reply within 12 hours · standard sizes from 10 sheets
Clear cast sheet — thickness is chosen before anything is cut
Our cast acrylic sheet is produced in metric thicknesses from 1 to 30 mm for clear sheet and 2 to 30 mm for coloured, black, white and frosted grades. Full sheets are 1220 × 2440 mm (the 4 × 8 ft size, also written 48 × 96 in), 2050 × 3050 mm and 2000 × 1000 mm. A 1220 × 2440 mm sheet weighs about 3.5 kg for every millimetre of thickness, so a 6 mm sheet is roughly 21 kg and a 10 mm sheet roughly 35 kg.
Full sheet sizes
Standard acrylic sheet sizes
| Size (mm) | Imperial | Grades |
| 1220 × 2440 | 4 × 8 ft (48 × 96 in) | All grades, incl. double-sided frost |
| 2050 × 3050 | 6.7 × 10 ft | Clear, black, white, single-sided frost |
| 2000 × 1000 | 6.6 × 3.3 ft | Confirmed in the quotation |
Smaller sizes such as 12 × 12 in, 18 × 24 in or 24 × 48 in are cut from full sheets rather than cast to size. See acrylic cut to size.
Imperial callouts
Imperial acrylic thickness and the metric sheet to ask for
| Imperial | Exact (mm) | Closest metric sheet |
| 1/16 in | 1.59 | 1.5 mm |
| 1/8 in | 3.18 | 3 mm |
| 3/16 in | 4.76 | 5 mm |
| 1/4 in | 6.35 | 6 mm |
| 3/8 in | 9.53 | 10 mm |
| 1/2 in | 12.70 | 12 mm |
| 5/8 in | 15.88 | 15 or 16 mm |
| 3/4 in | 19.05 | 20 mm |
| 1 in | 25.40 | 25 mm |
| 1 1/4 in | 31.75 | Above our 30 mm sheet range |
Metric and imperial sheets are not interchangeable where a part fits into a slot, frame or channel. If your drawing is in inches, tell us which dimension is critical and we confirm the thickness against it before cutting.
Freight planning
Acrylic sheet weight by thickness
| Thickness | kg per m² | 1220 × 2440 sheet | 2050 × 3050 sheet |
| 2 mm | 2.4 | 7.1 kg | 14.9 kg |
| 3 mm | 3.6 | 10.6 kg | 22.3 kg |
| 5 mm | 6.0 | 17.7 kg | 37.2 kg |
| 6 mm | 7.1 | 21.3 kg | 44.6 kg |
| 8 mm | 9.5 | 28.3 kg | 59.5 kg |
| 10 mm | 11.9 | 35.4 kg | 74.4 kg |
| 12 mm | 14.3 | 42.5 kg | 89.3 kg |
| 15 mm | 17.9 | 53.1 kg | 111.6 kg |
| 20 mm | 23.8 | 70.8 kg | 148.8 kg |
| 25 mm | 29.8 | 88.6 kg | 186.0 kg |
| 30 mm | 35.7 | 106.3 kg | 223.2 kg |
Calculated from the typical density of cast PMMA, 1.19 g/cm³, at nominal thickness. Packed weight with film, interleaving and pallets is higher and is stated in the quotation.
Choosing a thickness
What thickness buyers usually start from
- 2–3 mm. Display covers, sign faces, picture glazing and small boxes, where the panel is supported on its edges.
- 5–6 mm. Shelves, small machine guards, partitions and countertop displays with short spans.
- 8–12 mm. Larger guards and screens, table tops, free-standing panels and parts that take fixings near the edge.
- 15–30 mm. Machined blocks, bases, thick display plinths and parts that need depth for pockets, threads or polished edges.
Mid thickness
Plate thick enough for milled pockets
Thick sheet and block
Thick stock machined into a solid part
These are starting points, not ratings. Span, load, fixing method and temperature decide the final thickness — our acrylic sheet thickness guide and machine guard thickness article go into the detail, and we check it at drawing review.
Evidence and verification
- Weights are calculated at nominal thickness from the typical density of cast PMMA (1.19 g/cm³); packed weight is stated in the quotation.
- Material certificates, a certificate of conformity or a batch COA can be supplied per order on request.
- Sheet sizes, thickness ranges, MOQ and capacity on this page are company-declared by AcrylicFabWorks, the acrylic division of SinoPlastix.
- Fact owner: Engineering and quality review, AcrylicFabWorks · Last reviewed: 2026-10-14
FAQ
Questions about acrylic sheet thickness and size
What is a 4 × 8 acrylic sheet in millimetres?
1220 × 2440 mm. It is the most common full-sheet size and is available in every grade we supply, including double-sided frosted sheet.
What thickness range do you supply?
Clear cast sheet from 1 to 30 mm; coloured, black, white and frosted grades from 2 to 30 mm. Fabricated parts can be machined from material up to 100 mm thick.
Is 1/4 inch acrylic the same as 6 mm?
Close but not identical: 1/4 in is 6.35 mm. For most panels 6 mm is the sheet to ask for; where the part sits in a channel or frame, tell us the critical dimension.
How much does a 4 × 8 acrylic sheet weigh?
About 3.5 kg per millimetre of thickness: roughly 10.6 kg at 3 mm, 21.3 kg at 6 mm and 35.4 kg at 10 mm, before packing.
Can you supply sizes smaller than a full sheet?
Yes. Smaller panels such as 12 × 12 in or 24 × 48 in are cut from full sheets to your list, with the edge finish you specify.
Get a sheet quote
Send thickness, sheet size, grade and number of sheets — or your cut list — and we reply within 12 hours.
Or email sales@sinoplastix.com