GURU Water-Stop 3' x 5' x 1/2" Foam Board, 7-Pack

GURU Water-Stop 3' x 5' x 1/2" Foam Board, single

Guru Water-Stop 3' x 5' x 1/2" Foam Board

Price

Low Stock – 5 left
Backordered, shipping soon

30 Day Returns

Secure payments

Quantity

[{"id":43364829364419,"title":"7","option1":"7","option2":null,"option3":null,"sku":"GURU-WS-BOARD-3X5X1\/2-IMU9300-7PK","requires_shipping":true,"taxable":true,"featured_image":{"id":44482262630595,"product_id":7887815999683,"position":1,"created_at":"2025-04-09T14:49:37-05:00","updated_at":"2025-06-03T09:30:00-05:00","alt":"GURU Water-Stop 3' x 5' x 1\/2\" Foam Board, 7-Pack","width":2048,"height":2048,"src":"\/\/tilethis.com\/cdn\/shop\/files\/guru-ws-board-7-pack.png?v=1748961000","variant_ids":[43364829364419]},"available":true,"name":"GURU Water-Stop 3' x 5' x 1\/2\" Waterproof Foam Board for Tile Backer \u0026 Shower Walls - 7","public_title":"7","options":["7"],"price":46500,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"GURU Water-Stop 3' x 5' x 1\/2\" Foam Board, 7-Pack","id":36228631789763,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/tilethis.com\/cdn\/shop\/files\/guru-ws-board-7-pack.png?v=1748961000"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":43364829397187,"title":"80","option1":"80","option2":null,"option3":null,"sku":"GURU-WS-BOARD-3X5X1\/2-IMU9300-80PK","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"GURU Water-Stop 3' x 5' x 1\/2\" Waterproof Foam Board for Tile Backer \u0026 Shower Walls - 80","public_title":"80","options":["80"],"price":360000,"weight":0,"compare_at_price":388800,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}]

GURU Water-Stop Foam Board (3' x 5' x 1/2") is a waterproof tile backer board engineered for shower walls, ceilings, and wet areas. This durable foam board creates a smooth, moisture-resistant surface ideal for ceramic and porcelain tile installations, ensuring long-lasting waterproofing in bathrooms and showers.

Key Features of GURU Water-Stop Waterproof Foam Board

Waterproof Backer Board: Provides a reliable moisture barrier for wet areas like showers, bathrooms, and steam rooms.
Versatile Installation: Suitable for wood framing, metal studs, concrete, and brick substrates.
Easy Mounting: Compatible with the GURU Fastener Kit for secure and quick installation.
Waterproof Sealing: Use W-S MASTIC Sealant to seal fasteners and joints, maintaining a fully waterproof surface.
Standard Size: Measures 3 feet by 5 feet with 1/2 inch thickness, ideal for standard tile projects.

GURU Water-Stop Foam Board Specifications

Dimensions	Compatible Surfaces
3' x 5' x 1/2"	Brick, Concrete, Wood, Metal Studs

Order the GURU Water-Stop Waterproof Foam Board today to ensure a durable, moisture-resistant foundation for your next tile or shower waterproofing project.

Frequently Asked Questions

What are the dimensions of the GURU Water-Stop Foam Board?

The board measures 3' x 5' x 1/2".

Which surfaces is this foam board compatible with?

It is compatible with brick, concrete, wood framing, and metal studs.

What fastener kit should I use for installation?

Use the GURU Fastener Kit for secure and quick mounting.

How do I seal fasteners and joints to maintain waterproofing?

Apply W-S MASTIC Sealant around fasteners and seams.