DryGuard Enhanced OSB Sturd-I-Floor product image osb sub-floor with black outline angle facing

DryGuard Enhanced OSB Sturd-I-Floor product image osb sub-floor with black outline left facing

DryGuard Enhanced OSB Sturd-I-Floor product image osb sub-floor with black outline right facing

DryGuard Enhanced OSB Sturd-I-Floor product image osb sub-floor with 200 day no sand guarantee focus

DryGuard® Enhanced OSB
Sturd-I-Floor

OSB Single Floor with tongue and groove edge for easy installation.
Enhanced OSB with additional moisture resistance to help prevent water-related issues such as thickness and edge swell.
Available in both Tongue & Groove and square edge options to suit various installation needs.
Excellent nail-holding ability.
Provides stiffness and strength to floor systems.
Black edge seal helps prevent moisture intrusion.
Moisture-resistant panel, ideal for your flooring projects as well as DIY projects.
200-day no-sand warranty.

Specifications Request a Sample

Product Details

DryGuard® Enhanced OSB Sturd-I-Floor is engineered with advanced moisture resistance to provide a solid foundation for any building project. Available in both Tongue & Groove and square edge options, DryGuard® offers flexibility to meet your specific installation needs. Our tongue and groove design ensures a seamless fit where used, while the panel’s robust resistance to thickness swelling helps maintain long-term performance.

FEATURES AND BENEFITS

Moisture Resistance: Multi-layer protection with a black edge seal reduces moisture absorption.
No-Sand Guarantee: Backed by a 200-day no-sand warranty to save you time.
Durability: Rated for Exposure 1 bond durability, perfect for protected applications and construction delays.
Nail Retention: Ensures secure fastening for a long-lasting build.
Sustainable Sourcing: Manufactured with wood certified to SFI® or FSC® fiber sourcing standards.

Product Specifications

Performance Attributes

Classification	Exposure 1 – Rated sheathing suitable for uses not permanently exposed to the weather. Panels classified as Exposure 1 are intended to resist the effects of mositure on structural performance as may occur due to construction delays, or other conditions of similar severity.
Code Fire Classification	Class III or C
Flame Spread Rating	76-200, smoke developed index <450
Building Code Compliance	PS 2-18
Testing Agency	APA® – The Engineered Wood Association

Building Code Performance Categories, Panel Thickness

19/32 CAT	0.578” (14.68 mm)
23/32 CAT	0.703” (17.85 mm)

Physical Properties

Square Edge	3′-11⅞″ (1.216 m) x 7′-11⅞″ (2.435 m)
Tongue & Groove	3′-11½″ (1.206 m) x 7′-11⅞″ (2.435 m)
Length/Width Tolerance	±1/16” (±1.6 mm)
Straightness Tolerance	±1/16” (±1.6 mm)
Squareness Tolerance	±1/8″ (±3.2 mm)