Material Material |
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System of Measurement System of Measurement |
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Length Length |
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Shape Shape |
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| Sheet and Bar | Rod and Disc |
| Slotted | Tapered |
Backing Type Backing Type |
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| Plain | |
Flexibility Flexibility |
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![]() | Flexible |
| Semi-Rigid |
Clarity Clarity |
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| Semi-Clear |
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| Opaque |
Performance Properties Performance Properties |
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Texture Texture |
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![]() | Smooth |
Hardness Rating Hardness Rating |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Use With For Use With |
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Maximum Temperature Maximum Temperature |
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For Use Outdoors For Use Outdoors |
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Environment Environment |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Plastic
More
Don't see the shim stock you need? Just tell us what you're looking for and we'll get it for you.
Easy-to-Form Polystyrene Sheets and Strips

- Color: White
- Temperature Range: 0° to 155° F
- Tensile Strength: 2,400-4,000 psi (Poor)
- Impact Strength: 1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R70 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.1640, UL 94 HB
Often fabricated into signs, packaging, and light duty housings, these sheets and strips are easy to thermoform.
For technical drawings and 3-D models, click on a part number.
12" × 24" | 36" × 36" | 40" × 72" | |||||
|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Each | Each | Each | |||
| 1/32" | -0.003" to 0.003" | 0000000 | 00000 | 0000000 | 000000 | 0000000 | 000000 |
| 1/16" | -0.005" to 0.005" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 3/32" | -0.006" to 0.006" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 1/8" | -0.008" to 0.008" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 5/32" | -0.01" to 0.01" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | -0.012" to 0.012" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 000000 |
| 1/4" | -0.012" to 0.012" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 000000 |
24" Lg. | 48" Lg. | ||||
|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Each | Each | ||
2" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 0000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 0000 |
4" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 0000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 0000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 00000 |
6" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 0000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 00000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 00000 |
8" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 00000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 00000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 00000 | 0000000 | 00000 |
Easy-to-Form Polystyrene Rods

- Color: White
- Temperature Range: -10° to 170° F
- Tensile Strength: 2,400-4,000 psi (Poor)
- Impact Strength: 1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R70 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.1640, UL 94 HB
Easy to thermoform, these rods are often molded into parts for displays and shelves.
For technical drawings and 3-D models, click on a part number.
Electrical-Insulating Polystyrene Rods

- Color: Semi-Clear Off-White
- Temperature Range: -75° to 212° F
- Tensile Strength: 9,000 psi (Good)
- Impact Strength: 0.3 ft.-lbs./in. (Poor)
- Hardness: Rockwell R130 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.2710, Fed. Spec. L-P-516
These rods are made of a material known as Rexolite. They are electrically insulating and often used for cable connectors, electrical housings, and in microwave applications.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Dielectric Strength | Lengths, ft. | Per Ft. | |
| 1/8" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 | |
| 1/4" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 3/8" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 1/2" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 3/4" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 | |
| 1" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 |
Electrical-Insulating Polystyrene Sheets

- Color: Semi-Clear Off-White
- Temperature Range: -75° to 212° F
- Tensile Strength: 9,000 psi (Good)
- Impact Strength: 0.3 ft.-lbs./in. (Poor)
- Hardness: Rockwell R130 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.2710, Fed. Spec. L-P-516
Known for its electrical insulating properties, these sheets are often used for cable connectors, electrical housings, and in microwave applications. This material is also called Rexolite.
For technical drawings and 3-D models, click on a part number.
Multipurpose Plastic Selector Packs

You'll get one piece of each material listed, except nylon where you'll get two pieces (one piece of nylon 6/6 and one piece of cast nylon).
For technical drawings and 3-D models, click on a part number.
| Material | Wd. | Lg. | Pkg. Qty. | Pkg. | |
| ABS Plastic, Delrin® Acetal Plastic, HDPE Plastic, LDPE Plastic, Noryl PPO Plastic, Nylon Plastic, Polyester Plastic, Polystyrene Plastic, Rexolite Polystyrene Plastic, UHMW Plastic | 2" | 2" | 11 | 0000000 | 000000 |
Breakaway Shim Plates
These thick shims are scored to make size adjustments easy—break off the excess shim for a custom fit around fasteners or corners. Unlike wood shims, these plastic shims resist moisture and won’t rot. Use them to align cabinets, doors, and windows, or for other rough leveling.
For technical drawings and 3-D models, click on a part number.
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Color | Score Interval | Material | Temp. Range | Specifications Met | Pkg. Qty. | 1-4 | 5-Up | |
6" × 6" | ||||||||||
| 0.0625" | -0.032" to 0.032" | Black | 2" x 6" | Polystyrene Plastic | Not Rated | ASTM D638 | 8 | 0000000 | 00000 | 00000 |
Slip-Resistant Shim Plates


The textured surface of these thick shims keeps them from sliding apart when stacked. Use them to align cabinets, doors, and windows, or for other rough leveling. They're color-coded by thickness for easy identification. Unlike wood shims, these plastic shims resist moisture and won’t rot.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Color | Material | Specifications Met | Pkg. Qty. | Pkg. | |
6" × 4" | |||||||
|---|---|---|---|---|---|---|---|
| 0.0625" | -0.03" to 0.03" | Yellow | Polystyrene Plastic | ASTM D785 | 10 | 00000000 | 000000 |
Large-Adjustment Slotted Shims

Use these thick shims to align cabinets, doors, and windows, or for other rough leveling. They're color-coded by thickness for easy identification. The slot makes it easy to insert, remove, and adjust the shims. Shims are made of plastic to resist moisture and prevent rot.
For technical drawings and 3-D models, click on a part number.
Slot | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Lg. | Wd. | Wd. | Dp. | Color | For Max. Screw Size | Material | Temp. Range | Pkg. Qty. | Pkg. | |
| 0.0625" | -0.03" to 0.03" | 6" | 4" | 7/8" | 5 1/8" | Blue | 3/4" | Polystyrene Plastic | Not Rated | 10 | 00000000 | 000000 |
| 0.125" | -0.03" to 0.03" | 6" | 4" | 7/8" | 5 1/8" | Red | 3/4" | Polystyrene Plastic | Not Rated | 5 | 00000000 | 0000 |
| 0.25" | -0.03" to 0.03" | 6" | 4" | 29/32" | 5 5/32" | Black | 3/4" | Polystyrene Plastic | Not Rated | 5 | 00000000 | 00000 |
Breakaway Slotted Shims

These shims are scored so you can easily shorten them to the length you need. Designed to fit around screws, they are commonly used in window, door, and cabinet installations. Shims are made of plastic to resist moisture and prevent rot.
For technical drawings and 3-D models, click on a part number.
Slot | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Wd. | Dp. | Score Interval | Color | For Max. Screw Size | Material | Temperature Range | Pkg. Qty. | Pkg. | |
0.063" Thick. (-0.032" to 0.032" Tolerance) | |||||||||||
| 2"-3 1/2" | 2" | 5/8" | 2 7/8" | 1/2" | Black | 9/16" | Polystyrene Plastic | Not Rated | 16 | 0000000 | 00000 |
| 2"-4 1/4" | 2" | 5/8" | 3 9/16" | 1/2" | Black | 9/16" | Polystyrene Plastic | Not Rated | 16 | 0000000 | 0000 |
| 2"-4 3/4" | 2" | 5/8" | 4 1/8" | 1/2" | Black | 9/16" | Polystyrene Plastic | Not Rated | 16 | 0000000 | 0000 |
Color-Coded Horseshoe Shims

These shims are color-coded by thickness for easy identification. The horseshoe design fits around screws. Use them to align cabinets, doors, and windows. Shims are made of plastic to resist moisture and prevent rot.
For technical drawings and 3-D models, click on a part number.
Slot | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Wd. | Dp. | For Max. Screw Size | Material | Temperature Range | Pkg. Qty. | Pkg. | |
0.063" Thick. (-0.032" to 0.032" Tolerance)—Blue | |||||||||
| 1" | 2" | 9/16" | 13/16" | 1/2" | Polystyrene Plastic | Not Rated | 50 | 0000000 | 00000 |
| 4" | 3" | 13/16" | 3" | 3/4" | Polystyrene Plastic | Not Rated | 10 | 0000000 | 0000 |
1/8" Thick. (-0.032" to 0.032" Tolerance)—Red | |||||||||
| 1" | 2" | 9/16" | 13/16" | 1/2" | Polystyrene Plastic | Not Rated | 50 | 0000000 | 0000 |
| 4" | 3" | 13/16" | 3" | 3/4" | Polystyrene Plastic | Not Rated | 10 | 0000000 | 0000 |
1/4" Thick. (-0.032" to 0.032" Tolerance)—Black | |||||||||
| 1" | 2" | 9/16" | 13/16" | 1/2" | Polystyrene Plastic | Not Rated | 50 | 0000000 | 00000 |
| 4" | 3" | 13/16" | 3" | 3/4" | Polystyrene Plastic | Not Rated | 10 | 0000000 | 00000 |
Interlocking Color-Coded Horseshoe Shims

Clips on these shims hold them together when stacked, and they are color coded by thickness for easy identification. Designed to fit around screws, they are commonly used in window, door, and cabinet installations. Shims are made of plastic to resist moisture and prevent rot.
For technical drawings and 3-D models, click on a part number.
Slot | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Wd. | Dp. | For Max. Screw Size | Material | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
0.063" Thick. (-0.032" to 0.032" Tolerance)—Blue | |||||||||
| 3" | 1 1/2" | 1/2" | 2 1/2" | 1/2" | Polystyrene Plastic | 175° | 25 | 000000000 | 00000 |
| 4" | 3" | 7/8" | 3" | 3/4" | Polystyrene Plastic | 175° | 25 | 000000000 | 0000 |
1/8" Thick. (-0.032" to 0.032" Tolerance)—Red | |||||||||
| 3" | 1 1/2" | 1/2" | 2 1/2" | 1/2" | Polystyrene Plastic | 175° | 25 | 000000000 | 0000 |
| 4" | 3" | 7/8" | 3" | 3/4" | Polystyrene Plastic | 175° | 25 | 000000000 | 00000 |
1/4" Thick. (-0.032" to 0.032" Tolerance)—Black | |||||||||
| 3" | 1 1/2" | 1/2" | 2 1/2" | 1/2" | Polystyrene Plastic | 175° | 25 | 000000000 | 0000 |
| 4" | 3" | 7/8" | 3" | 3/4" | Polystyrene Plastic | 175° | 25 | 000000000 | 00000 |
Slotted Tapered Shims

The slot lets you install these rigid shims around screws. Shims are made of plastic to resist moisture and prevent rot. Use them to align cabinets, doors, and windows, or for other rough leveling.
For technical drawings and 3-D models, click on a part number.





























