None of the listed products is 1-inch cement board: they are polystyrene foam, HDPE plastic, and ceramic-fiber insulation. If you need a cement-based panel for a building or tile project, these products are not direct substitutes. Among the listed options, LuckyFoam’s blue and white foam sheets are best for lightweight modeling, Crafare is suited to floral and craft work, HDPE fits durable DIY parts, and BXI is intended for high-temperature insulation.
| Product | Best suited for | Material and listed size |
|---|---|---|
| LuckyFoam Blue | Modeling and lightweight craft projects | Polystyrene; 12 × 7.5 × 1 inches |
| LuckyFoam White | Crafting where a white surface is preferred | Polystyrene; 12 × 7.5 × 1 inches |
| Crafare Foam Blocks | Floral arrangements and sculpting | EPS polystyrene; 12 × 8 × 1 inches |
| HDPE Plastic Block | DIY components and machining projects | HDPE; 12 × 3 × 0.5 inches |
| BXI Ceramic Fiber Board | High-temperature insulation applications | Aluminosilicate; 12 × 8 × 0.4 inches |
LuckyFoam Blue 1-Inch Foam Sheets

This four-pack contains blue polystyrene sheets measuring 12 × 7.5 × 1 inches. The product description says the sheets are lightweight and can be cut with a utility knife or scissors. It lists modeling, school projects, displays, DIY crafts, and some insulation uses among possible applications.
Best for: Crafters or model builders who need lightweight, cuttable foam in a one-inch thickness. It was selected because its listed thickness matches the search phrase, although its material is not cement board. The blue color can also help distinguish it from the white option.
Limitation: This is polystyrene, not a cement-based construction panel. Do not treat it as a substitute for cement board in tile, wet-area, or other building assemblies.
LuckyFoam White 1-Inch Foam Sheets

This option is a four-pack of white polystyrene sheets, each listed at 12 × 7.5 × 1 inches. The manufacturer describes the material as lightweight and easy to cut for art, displays, school projects, and DIY work. The listing also mentions insulation-related uses.
Best for: Buyers who want one-inch foam sheets for models or craft projects and prefer white material. It shares the blue version’s dimensions and stated uses, making color the main listed distinction between the two choices.
Limitation: The product is foam, not cement board. Its description does not establish that it is suitable for tile backing or structural construction, so choose a purpose-made cement board for those jobs.
Crafare 12 × 8-Inch Craft Foam Blocks

Crafare’s four-pack consists of 12 × 8 × 1-inch EPS polystyrene blocks. The listed surface can be sanded, pinned, carved, drawn on, glued, painted, or cut into shapes. Suggested uses include sculptures, floral arrangements, and other handmade craft projects.
Best for: Floral designers, students, and hobbyists who want a surface that can be shaped and decorated. It was selected because it is one inch thick and offers more explicitly listed craft-working options than a basic panel.
Limitation: EPS foam is not cement board and is not presented as a tile or building panel. The listing does not specify construction-grade moisture or load performance.
HDPE Plastic Block for DIY Projects

This black HDPE block measures 12 × 3 × 0.5 inches, so it is half an inch thick rather than one inch. Its listing highlights corrosion and wear resistance, low friction, and use in DIY, machining, protective barriers, and home-improvement projects.
Best for: Buyers making a small custom component or project part from plastic. It was selected as a durable-material option among the supplied products, not as a cement-board equivalent.
Limitation: Its thickness is only 0.5 inch, and the material is HDPE. It does not match a one-inch cement-board specification.
BXI Ceramic Fiber Insulation Board

This single aluminosilicate board measures 12 × 8 × 0.4 inches. The listing describes it as a high-density, inorganic thermal-insulation board and states a maximum use temperature of 2732°F. It is intended for high-temperature insulation applications, including indoor soldering work.
Best for: Buyers seeking a thin, heat-resistant insulation material rather than a general-purpose panel. It was included because its board format and thermal purpose distinguish it from the craft products.
Limitation: At 0.4 inch thick, it is not one inch. It is ceramic fiber, not cement board, and the listing does not identify it as a tile backer.
Buying Guide: How to Choose a 1-Inch Cement Board
Do you need cement board or just a one-inch panel?
Start with the job. Cement board is a cement-based construction panel commonly selected as a substrate in building applications. Foam sheets, plastic blocks, and ceramic-fiber insulation have different materials and purposes. A matching thickness alone does not make them interchangeable. Confirm that the product is specifically labeled for your intended assembly.
Does the thickness have to be exactly one inch?
Check the project instructions and required finished dimensions before buying. The listed foam sheets are one inch thick, but the HDPE block is 0.5 inch and the ceramic-fiber board is 0.4 inch. If a project calls for a cement panel, verify the panel’s stated material and thickness rather than relying on a similar measurement.
Which listed material fits craft work?
Choose Crafare if you plan to carve, pin, sand, or decorate the block. Choose LuckyFoam if you want lightweight sheets for models or displays; select blue or white based on the project’s visual needs. These options are intended for crafts, not as substitutes for construction panels.
What should I verify before using a panel in construction?
Check the product’s approved use, dimensions, installation directions, and suitability for the surrounding materials and conditions. The supplied product details do not identify any item as cement board. For a building or tile application, seek a product explicitly made and specified for that use.
Frequently Asked Questions
Is any product in this list 1-inch cement board?
No. The one-inch products are polystyrene foam. The other options are HDPE plastic and ceramic-fiber insulation.
Can one-inch foam replace cement board?
The supplied listings do not support using these foam sheets as cement-board replacements. They are described for crafts, modeling, displays, and related uses.
Which product is exactly one inch thick?
The Crafare blocks and both LuckyFoam sheet options are listed as one inch thick. They are not cement-based panels.
Which option is intended for high temperatures?
The BXI ceramic-fiber board is the listed high-temperature insulation product. It measures 0.4 inch thick and is not cement board.