Acrylic tube sizes: OD × ID × wall (1/4 to 6 in OD, clear extruded PMMA), inch and mm — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/acrylic-tube-od-wall-sizes/ (sheet CC BY 4.0) Basis: eplastics (24 sizes, page 1 of 2) and U.S. Plastic (14 sizes) distributor listings; wall derived as (OD − ID) / 2 Catalog version: 2026-10-20 Sizes: see table below - Clear extruded acrylic (PMMA) tube is sold by outside diameter and inside diameter; the wall is derived, (OD − ID) / 2, because neither distributor prints a wall column. Sizes are nominal inch sizes; mm columns are exact conversions of the inch values (× 25.4), not separate catalog data. Cast acrylic tube and heavy-wall tube exist (U.S. Plastic lists cast and 'heavy wall' items) but no table of them was read. - eplastics lists 24 sizes on page 1 of 2 (1/4 in OD to 2-1/2 in OD); page 2 was not read, so larger sizes there are missing from this table. U.S. Plastic's page lists 14 sizes from 1-1/2 to 6 in OD, all 1/8 in wall. The five sizes both distributors list (1-1/2 × 1-1/4, 1-3/4 × 1-1/2, 2 × 1-3/4, 2-1/4 × 2, 2-1/2 × 2-1/4) agree. - No STEP/STL: a tube is a plain hollow cylinder with no other published feature. Left out: tolerances (OD and wall tolerances were not read), length, square and rectangular acrylic tube, cast tube. OD, in ID, in wall (OD − ID) / 2, in OD, mm ID, mm wall, mm listed by 1/4 1/8 1/16 6.35 3.17 1.59 eplastics 5/16 3/16 1/16 7.94 4.76 1.59 eplastics 3/8 1/8 1/8 9.52 3.17 3.17 eplastics 3/8 1/4 1/16 9.52 6.35 1.59 eplastics 1/2 3/16 5/32 12.70 4.76 3.97 eplastics 1/2 1/4 1/8 12.70 6.35 3.17 eplastics 1/2 3/8 1/16 12.70 9.52 1.59 eplastics 5/8 3/8 1/8 15.88 9.52 3.17 eplastics 5/8 1/2 1/16 15.88 12.70 1.59 eplastics 3/4 1/2 1/8 19.05 12.70 3.17 eplastics 3/4 5/8 1/16 19.05 15.88 1.59 eplastics 7/8 3/4 1/16 22.22 19.05 1.59 eplastics 1 3/4 1/8 25.40 19.05 3.17 eplastics 1 7/8 1/16 25.40 22.22 1.59 eplastics 1-1/4 1 1/8 31.75 25.40 3.17 eplastics 1-1/4 1-1/8 1/16 31.75 28.57 1.59 eplastics 1-1/2 1 1/4 38.10 25.40 6.35 eplastics 1-1/2 1-1/4 1/8 38.10 31.75 3.17 eplastics + U.S. Plastic 1-5/8 1-3/8 1/8 41.27 34.92 3.17 eplastics 1-3/4 1-1/2 1/8 44.45 38.10 3.17 eplastics + U.S. Plastic 2 1-1/2 1/4 50.80 38.10 6.35 eplastics 2 1-3/4 1/8 50.80 44.45 3.17 eplastics + U.S. Plastic 2-1/4 2 1/8 57.15 50.80 3.17 eplastics + U.S. Plastic 2-1/2 2-1/4 1/8 63.50 57.15 3.17 eplastics + U.S. Plastic 2-3/4 2-1/2 1/8 69.85 63.50 3.17 U.S. Plastic 3 2-3/4 1/8 76.20 69.85 3.17 U.S. Plastic 3-1/4 3 1/8 82.55 76.20 3.17 U.S. Plastic 3-1/2 3-1/4 1/8 88.90 82.55 3.17 U.S. Plastic 3-3/4 3-1/2 1/8 95.25 88.90 3.17 U.S. Plastic 4 3-3/4 1/8 101.60 95.25 3.17 U.S. Plastic 4-1/2 4-1/4 1/8 114.30 107.95 3.17 U.S. Plastic 5 4-3/4 1/8 127.00 120.65 3.17 U.S. Plastic 6 5-3/4 1/8 152.40 146.05 3.17 U.S. Plastic Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - eplastics: Clear extruded acrylic tube: OD x ID (24 of the sizes on page 1 of 2) — web — Publisher's page; dimensions are facts — https://www.eplastics.com/shapes/plexiglass/tube/clear-extruded - U.S. Plastic Corp: Clear extruded acrylic tubing 1-1/2 to 6 in OD, 1/8 in wall — web — Publisher's page; dimensions are facts — https://www.usplastic.com/catalog/item.aspx?itemid=23401 - McMaster-Carr: Acrylic pipe / tube (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/acrylic-pipe/ - McMaster-Carr: Acrylic hollow rods (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/acrylic-hollow-rods No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned. API: https://xemstudio.com/api/geometry?object=acrylic-tube-od-wall-sizes